V1.06.J149

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v1.06.J149
Added in Afterbirth †
Date released
April 30th, 2018
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v1.06.J127 ◄ ► v1.06.J150


This was the initial version of Booster Pack #5 for the Afterbirth † DLC expansion. For an overview on content, see Booster Packs.

Documented Changes[edit | edit source]

New Items[edit | edit source]

  • Added in Afterbirth †Blanket BlanketBlanket Icon.pngGrants one soul heart. Upon entering a boss room, grants a shield that blocks one hit, then disappears. (535), which is based on this Steam Workshop item by Ratlah.
  • Added in Afterbirth †Sacrificial Altar Sacrificial AltarSacrificial Altar Icon.pngOne time useUpon use, sacrifices up to 2 familiars and spawns an item from the Devil Room Pool for each familiar sacrificed. (536), which is based on this Steam Workshop item by Niro.
  • Added in Afterbirth †Lil Spewer Lil SpewerLil Spewer Icon.pngSpawns a random pill, and grants a small Spewer familiar that charges up and fires different types of creep. (537), which is based on this Steam Workshop item by Strawrat and CupertinoEffect.
  • Added in Afterbirth †Marbles MarblesMarbles Icon.pngSpawns 3 random trinkets. Taking damage has a small chance to swallow Isaac's currently held trinket, gaining its effect permanently. (538), which is based on this Steam Workshop item by Amethyst and Bustin Blotch.
  • Added in Afterbirth †Mystery Egg Mystery EggMystery Egg Icon.pngSpawns an egg familiar, which cracks and turns into a random charmed enemy when Isaac is hurt. The egg regenerates upon entering a different room. (539), which is based on this Steam Workshop item by Strawrat and CupertinoEffect.
  • Added in Afterbirth †Flat Stone Flat StoneFlat Stone Icon.pngTears bounce off the floor. Tears that hit an enemy after bouncing deal splash damage to all nearby enemies for 25% of Isaac's tear damage. (540), which is based on this Steam Workshop item by Maddogs and Joe.

New Trinkets[edit | edit source]

New Enemies[edit | edit source]

New Bosses[edit | edit source]

New Achievements[edit | edit source]

  • 64 new achievements.
    • 36 are from the Switch version.

Room Changes[edit | edit source]

  • 817 new rooms by Nik @LethalLeather
  • Rooms made for the Afterbirth alt floors after Booster #4 will no longer be subjected to random rock replacements.

Graphical Changes[edit | edit source]

  • Added many graphical fixes and changes from this Steam Workshop mod by This Guy, Stewartisme, piber20, Xalum, BeGrapa, PJJLegend, Dat Frodo, a heckin yowler, Super-Colliding Super Button, TitaniumGrunt7, THX, JonTheRealJon, blor, Mr. Gummy Kitten, and I_D30_I.
    • Includes fixed pit seams from this Steam Workshop mod by BeGrapa.
    • Added in AfterbirthFarting Baby Farting BabyFarting Baby Icon.pngA familiar that follows Isaac and blocks tears. If a tear hits Farting Baby, there is a high chance for it to fart, which will either knock back, poison, or charm all nearby enemies.'s collectible sprite now matches its familiar sprite. Fixed by this Steam Workshop mod by Dat Frodo.
    • Includes smoother loading images from this Steam Workshop mod by Super-Colliding Super Button.
    • Added in Afterbirth †YO LISTEN! YO LISTEN!YO LISTEN! Icon.png+1 luck. Spawns a fairy familiar that points out secret room entrances and tinted rocks.'s familiar sprite is now more pixelated. From this Steam Workshop mod by piber20.
    • Added some backdrop tiling fixes from this Steam Workshop mod by piber20.
    • Blood on costumes are now consistently the same color. From this Steam Workshop mod by Xalum.
    • Added in AfterbirthLazy Worm Lazy WormLazy Worm Icon.pngTear shot speed is greatly reduced.'s trinket sprite was changed.
  • Added more dirt sprites for burrowing enemies from this Steam Workshop mod by piber20.
  • Added many graphical fixes and changes from Antibirth.
    • Changed the lightest shade of the palette of red costumes.
    • Pentagram PentagramPentagram Icon.pngIncreases damage and increases the chance for a Devil or Angel Room to appear.'s collectible sprite was changed.
    • Caffeine Pill Caffeine PillCaffeine Pill Icon.pngIncreases speed and reduces character size. Also gives a random pill.'s collectible sprite was changed.
    • Isaac's Tears Isaac's TearsIsaac's Tears Icon.png6 roomsShoots 8 tears around Isaac, which retain the damage, shot speed, and special effects of his tears. Each tear shot by Isaac increases item charge by one.' collectible sprite was changed.
    • Proptosis ProptosisProptosis Icon.pngTears start out massive with high damage, and then shrink down and become weaker over a short range.' collectible sprite was changed.
    • Abaddon AbaddonAbaddon Icon.pngIncreases damage and speed, removes all red heart containers, grants six black hearts, and adds a chance to shoot fear tears.'s collectible sprite was changed.
    • SMB Super Fan SMB Super FanSMB Super Fan Icon.pngIncreases all stats.'s collectible sprite was changed.
    • Polyphemus PolyphemusPolyphemus Icon.pngMakes Isaac shoot one huge tear. Also reduces Tears to minimum. Damage increased . If tear does more damage than an enemy's life, the tear continues to travel with the extra remaining damage.' collectible sprite was changed.
    • We Need to Go Deeper! We Need to Go Deeper!We Need to Go Deeper! Icon.png6 roomsCreates a trapdoor to go to the next floor. If used in The Womb, it will create a trapdoor to Sheol, even if the player hasn't unlocked it.'s collectible sprite was changed.
    • The Peeper The PeeperThe Peeper Icon.pngSpawns a familiar that floats slowly around the room on a zig-zag pattern similar to Boom Flies damaging enemies it passes through.'s collectible sprite was changed.
    • The Compass The CompassThe Compass Icon.pngReveals all special rooms (except secret rooms of any kind).' collectible sprite was changed.
    • Mom's Eye Mom's EyeMom's Eye Icon.pngAllows Isaac to fire tears from the back of his head.'s collectible sprite was changed.
    • Distant Admiration Distant AdmirationDistant Admiration Icon.pngA red attack fly circles further out than the Halo of Flies / Pretty Flies, but closer than Forever Alone. Deals more damage than Forever Alone.'s collectible sprite was changed.
    • Mom's Contacts Mom's ContactsMom's Contacts Icon.pngAdds a chance to shoot petrifying tears, which stop enemies in place and prevent them from moving or attacking. Range up.' collectible sprite was changed.
    • Forever Alone Forever AloneForever Alone Icon.pngSpawns a blue attack fly that orbits a long distance from Isaac.'s collectible sprite was changed.
    • Anemic AnemicAnemic Icon.png+5 range. After Isaac is damaged, a trail of red creep will be left behind Isaac until he leaves the current room.'s collectible sprite was changed.
    • Cain's Eye Cain's EyeCain's Eye Icon.pngWhen starting a floor, 25% chance to get the The Compass effect for the duration of a floor.'s trinket sprite was changed.
    • Mom's Pearl Mom's PearlMom's Pearl Icon.pngGrants a secondary 10% chance of any non-specific heart drop turning into a soul heart.'s trinket sprite was changed.
    • Credit Card was given a unique card back.
    • Chaos Card, and by extension; Huge Growth, Ancient Recall, and Era Walk, were given a unique card back.
    • A Card Against Humanity was given a unique card back.
    • Updated Isaac's Cathedral transition animation.
  • Money = Power Money = PowerMoney = Power Icon.pngIncreases damage by 0.04 for every coin Isaac has, up to +3.96 damage at 99 coins.'s collectible sprite was changed.
  • Added in Afterbirth †Fast Bombs Fast BombsFast Bombs Icon.pngGrants 7 bombs and allows bombs to be placed rapidly.' collectible sprite was changed.
  • Added in AfterbirthNO! NO!NO! Icon.pngRemoves all active items from every item pool.'s trinket sprite was changed.
  • Added in AfterbirthKarma KarmaKarma Icon.pngDonating to a donation machine has a chance to heal Isaac for a full red heart or spawn a beggar. Increases the chance that donating to a Donation Machine will increase Isaac's luck.'s trinket sprite was changed.
  • Added in AfterbirthEndless Nameless Endless NamelessEndless Nameless Icon.pngWhen Isaac uses a pill, card, or rune, there is a chance to spawn another one of the same type.' trinket sprite was changed.
  • Added in AfterbirthSecond Hand Second HandSecond Hand Icon.pngIncreases the time that status effects stay on enemies.'s trinket sprite was changed.
  • Added in Afterbirth †Pop! Pop!Pop! Icon.pngReplaces Isaac's tears with eyeballs that can bounce off of each other. The eyeballs are not limited by range, and will instead dissipate when they stop moving or when hitting an enemy or obstacle.'s tear sprites were changed.
  • Added in Afterbirth †Haemolacria HaemolacriaHaemolacria Icon.pngTears are now fired in an arc. Upon hitting the floor, an obstacle, or an enemy, they burst into many smaller tears in all directions. Increases tear delay.'s tears got a visual overhaul.
  • Added in Afterbirth †Shade ShadeShade Icon.pngSpawns a shadow familiar that follows Isaac's movements on a 1 second delay and deals contact damage to enemies.'s familiar animations were changed.
  • Get out of Jail Free Card was given a unique card back.
  • Holy Card was given a unique card back.
  • Fixed some stray pixels in Rag Mega's animation.
  • Eve now leaves a pool of blood behind instead of pee when walking between rooms at low HP.
  • Added a new unique jumping animation to Ministro.
  • Charged Key's appearance got an overhaul.
  • Fixed Nerve Ending 2 having a 2 pixel thick outline at the base of their tentacle during their attack animation.
  • Fixed lvl 3 and 4 Meat Boy having inconsistent head and body color (and lvl 3 and 4 Bandage Girl, to a lesser extent)
  • My Little Unicorn My Little UnicornMy Little Unicorn Icon.png6 roomsUpon use, grants invulnerability and increased speed for five seconds, removing the ability to shoot tears and replacing it with the ability to deal contact damage to enemies.'s costume was given color alts.
  • Piggy Bank Piggy BankPiggy Bank Icon.pngGives 3 pennies on pick-up. Every time Isaac is damaged, he will drop one additional penny.'s costume was given color alts.
  • Bogo Bombs Bogo BombsBogo Bombs Icon.pngAll standard bomb pickups become 1+1 bomb pickups.' costume was given color alts.
  • Lord of the Pit Lord of the PitLord of the Pit Icon.pngGrants flight and increases speed.'s costume was given color alts.
  • Holy Grail Holy GrailHoly Grail Icon.pngGrants flight and one heart container.'s costume was given color alts.
  • Fate FateFate Icon.pngGrants flight and one eternal heart.'s costume was given color alts.
  • Cancer CancerCancer (Trinket) Icon.png-2 Tear Delay (effectively increases firerate of tears).'s costume was given color alts.
  • Sagittarius SagittariusSagittarius Icon.pngIncreases speed by +0.2 and grants piercing tears.' costume was given color alts.
  • Synthoil SynthoilSynthoil Icon.pngIncreases damage by 1, range by 5.25, and tear height by 0.5.'s costume was given color alts.
  • The Body The BodyThe Body Icon.pngAdds 3 heart containers.'s costume was given color alts.
  • Added in AfterbirthBursting Sack Bursting SackBursting Sack Icon.pngSpider enemies no longer target or deal contact damage to Isaac.'s costume was given color alts.
  • Added in AfterbirthBetrayal BetrayalBetrayal Icon.pngEvery time Isaac takes damage, a charm effect is applied to every enemy in the room, causing them to attack each other rather than Isaac.'s costume was given color alts.
  • Added in AfterbirthLusty Blood Lusty BloodLusty Blood Icon.pngEach time Isaac kills an enemy, Isaac's damage increases for the current room.'s costume was given color alts.
  • Added in AfterbirthSticky Bombs Sticky BombsSticky Bombs Icon.png+5 bombs. Bombs stick to enemies and spawn 2-4 blue spiders if they kill an enemy.' costume was given color alts.
  • Added in Afterbirth †Polydactyly PolydactylyPolydactyly Icon.pngAllows Isaac to carry two cards, pills, or any combination of both at the same time. Drops a random card or pill.'s costume was given color alts.
  • Mom Transformation's costume was given color alts.
  • Spun Transformation's costume was given color alts.
  • Conjoined Transformation's costume was given color alts.
  • Spider Baby Transformation's costume was given color alts.
  • Added in Afterbirth †Broken Modem Broken ModemBroken Modem Icon.pngEnemies, enemy shots, tears, and pickups will briefly freeze in place at random intervals.'s costume sprite was changed.
  • Added support for per-character alt spritesheets for item costumes. (used by The Forgotten)
  • Fixed Ouija Board Ouija BoardOuija Board Icon.pngGrants spectral tears that travel through obstacles (but not enemies) instead of breaking on impact with them. costume overwriting the player's skin color to pink instead of white.
  • Directional tear variants (i.e. Cupid's Arrow Cupid's ArrowCupid's Arrow Icon.pngGrants Isaac piercing tears that travel through enemies (but not obstacles) instead of breaking on impact with them.) now take their falling speed into account when computing sprite rotation.
  • Added minimap icons for half red hearts, half soul hearts, blended hearts and gold hearts.
  • Improved some of the existing minimap icons. (notably sacrifice rooms)
  • Spiders and Big Spiders will no longer blink when the player has Added in AfterbirthBursting Sack Bursting SackBursting Sack Icon.pngSpider enemies no longer target or deal contact damage to Isaac..
  • Red creep will no longer be darkened in the Scarred Womb.
  • Adjusted the stats of each character in the character selection menu to better reflect their actual in-game stats.
  • Added a charge bar to Mom's Knife Mom's KnifeMom's Knife Icon.pngIsaac's tears are replaced by a knife that pierces enemies, can travel through obstacles, and can hurt enemies while Isaac is holding it. Holding down the fire button before firing increases its range and power. and Added in AfterbirthLil Gurdy Lil GurdyLil Gurdy Icon.pngGives Isaac a Gurdy familiar that will charge around the room dealing contact damage to enemies. Lil Gurdy is charged by holding down a fire button and letting go. The longer the button is held, the faster Lil Gurdy will fling itself across the screen. Lil Gurdy can pass over objects and obstacles in the room..
  • Stone Grimaces no longer play their appear animation if encountered in an already cleared room.
  • Adjusted Isaac's pickup animation so items no longer obstruct his face.
  • Added in AfterbirthVentricle Razor Ventricle RazorVentricle Razor Icon.pngUnlimitedCan be used to place an orange portal and a blue portal. Upon entering a portal, Isaac is teleported to the other portal.'s portals got a few minor visual tweaks.
  • Added in AfterbirthVentricle Razor Ventricle RazorVentricle Razor Icon.pngUnlimitedCan be used to place an orange portal and a blue portal. Upon entering a portal, Isaac is teleported to the other portal.'s portals will now appear closed if they have no connected portal.
  • Items dropped by chests or slot machines no longer revert to their generic stone pedestal look upon leaving and reentering the room.

Other Changes[edit | edit source]

  • Slightly improved navigation in the collection menu. (faster and loops back on itself when scrolling vertically)
  • Updated game over sprites for some of the items from Booster #4.
  • Added in Afterbirth †Shade ShadeShade Icon.pngSpawns a shadow familiar that follows Isaac's movements on a 1 second delay and deals contact damage to enemies.'s behavior got minor changes.
  • Added in Afterbirth †Haemolacria HaemolacriaHaemolacria Icon.pngTears are now fired in an arc. Upon hitting the floor, an obstacle, or an enemy, they burst into many smaller tears in all directions. Increases tear delay. now uses the same tear delay calculation as Ipecac IpecacIpecac Icon.pngReplaces tears with explosive and poisoning projectiles fired in an arc from the mouth..
  • Added in Afterbirth †Lil Monstro Lil MonstroLil Monstro Icon.pngSpawns a familiar that fires clusters of tears. Must be charged before shooting.'s shooting sound effect was replaced with a more appropriate one.
  • Stonies now have a brief death animation and break into rock debris.
  • Slightly toned down the tear delay penalty from Added in Afterbirth †Haemolacria HaemolacriaHaemolacria Icon.pngTears are now fired in an arc. Upon hitting the floor, an obstacle, or an enemy, they burst into many smaller tears in all directions. Increases tear delay. + Monstro's Lung Monstro's LungMonstro's Lung Icon.pngIncreases damage and grants a charged shot that fires multiple tears in the same fashion as Monstro. + Brimstone BrimstoneBrimstone Icon.pngTears are replaced by a laser beam that pierces through all enemies and obstacles in its path and deals high damage. Can only be fired after a short charge-up period./Dr. Fetus Dr. FetusDr. Fetus Icon.pngTears are replaced by bombs that benefit from bomb-enhancing effects and slide a fixed range after being fired.
  • Added in AfterbirthBetrayal BetrayalBetrayal Icon.pngEvery time Isaac takes damage, a charm effect is applied to every enemy in the room, causing them to attack each other rather than Isaac. will no longer trigger if there are less than 2 enemies in the room.
  • Spikes will now start (and remain) in their lowered position when entering a cleared pressure plate room.
  • Charmed enemies will now prioritize non charmed enemies unless there aren't any.
  • Nerve Ending 2 now plays a sound when attacking.
  • Nerve Ending 2 can never replace Nerve Endings next to doors.
  • Swingers now spawn with their head retracted and extend over 2 seconds. (so the head is less likely to spawn right on top of the player with no warning)
  • Decreased the damage rate of Level 3 and 4 Bandage Girl to match Meat Boy (it was way too high before)
  • Increased the damage rate of Added in Afterbirth †Angry Fly Angry FlyAngry Fly Icon.pngSpawns a fly familiar that orbits around a random enemy and deals 5 damage per tick to enemies it comes in contact with. to match other fly orbitals.
  • Stonies now roar less often and will stop doing it while catching their breath.
  • Halved the damage of Shoop Da Whoop! Shoop Da Whoop!Shoop Da Whoop! Icon.png2 roomsFires a laser from Isaac's mouth. to compensate for the fix applied to it. (total damage remains the same, but it will be inflicted over a slightly longer period of time)
  • Pickups can now be picked up as soon as they hit the ground.
  • Eternal hearts will now take half a heart worth of damage from any lethal hit taken with only soul hearts.
  • Permanently charmed enemies will no longer try to go after Punching Bag Punching BagPunching Bag Icon.pngSpawns a Mulligan Familiar that will wander the room randomly. Enemies will attack the Mulligan if it's closer..
  • Number One Number OneNumber One Icon.png+1.5 tears, -15.77 range and Added in AfterbirthKidney Stone Kidney StoneKidney Stone Icon.pngRandomly while firing tears, Isaac will stop firing and turn red, where he will charge and release a lot of 'tears' in one go. In the burst of tears is a kidney stone which deals a lot of damage. now cause Isaac to fire "tears" from the middle instead of from his eyes, and at a slightly lower height.
  • Added in AfterbirthGlowing Hour Glass Glowing Hour GlassGlowing Hour Glass Icon.png2 roomsWhen used, this item will rewind time, put Isaac back in the previous room, and undo anything that happened in the current room. Any health, pickups, or items gained or lost will be reset back to the previous state. now rewinds event counters as well. (this includes Donations and Added in AfterbirthEden's Blessing Eden's BlessingEden's Blessing Icon.png+0.7 tears up. Grants a random item at the start of the next run.s)
  • Using ? Card with Added in AfterbirthGlowing Hour Glass Glowing Hour GlassGlowing Hour Glass Icon.png2 roomsWhen used, this item will rewind time, put Isaac back in the previous room, and undo anything that happened in the current room. Any health, pickups, or items gained or lost will be reset back to the previous state. will now consume the card.
  • Removed the 5 uses limit from Added in AfterbirthGlowing Hour Glass Glowing Hour GlassGlowing Hour Glass Icon.png2 roomsWhen used, this item will rewind time, put Isaac back in the previous room, and undo anything that happened in the current room. Any health, pickups, or items gained or lost will be reset back to the previous state. as all (or most) known game breaking exploits have been fixed.
  • Lost Contact Lost ContactLost Contact Icon.pngEvery tear has a small shield which will allow it to block one enemy projectile. now only affects the player's tears. (and tears shot by Added in AfterbirthIncubus IncubusIncubus Icon.pngA demonic familiar that follows Isaac and shoots tears identical to Isaac's in terms of damage, range, fire rate, and effects.)
  • Reduced base HP of Blue Gapers and added stage HP so they have slightly more reasonable health when encountered early.
  • Pressure plate that spawn enemies will now close the doors as well.
  • Breath of Life Breath of LifeBreath of Life Icon.png6 secondsGrants a brief moment of invincibility when the charge bar hits zero. If spacebar is held for an additional second after hitting zero, Isaac will take damage. will now immediately give invincibility frames when triggered by Added in Afterbirth †Void VoidVoid Icon.png6 roomsConsumes all pedestal items in the room. Active items will have their effects added to Void, and passive items will grant stat upgrades.. (previous behavior made it extremely exploitable)
  • Added some visual feedback when Breath of Life Breath of LifeBreath of Life Icon.png6 secondsGrants a brief moment of invincibility when the charge bar hits zero. If spacebar is held for an additional second after hitting zero, Isaac will take damage. provides its invincibility.
  • Breath of Life Breath of LifeBreath of Life Icon.png6 secondsGrants a brief moment of invincibility when the charge bar hits zero. If spacebar is held for an additional second after hitting zero, Isaac will take damage. can now be held down between rooms.
  • Spectral tears will no longer bounce off rocks with Rubber Cement Rubber CementRubber Cement Icon.pngTears bounce off walls, enemies, and environmental objects..
  • Added a visual cue to Added in Afterbirth †Hairpin HairpinHairpin Icon.pngFully recharges Isaac's active item upon entering a boss fight. when it recharges the player's active item upon entering a boss room, audio cue now plays after boss intro instead of before.
  • BFFS! BFFS!BFFS! Icon.pngIncreases the size and damage of familiars. now increases spawner familiar spawn rates.
  • Added in AfterbirthGlowing Hour Glass Glowing Hour GlassGlowing Hour Glass Icon.png2 roomsWhen used, this item will rewind time, put Isaac back in the previous room, and undo anything that happened in the current room. Any health, pickups, or items gained or lost will be reset back to the previous state. will now also revert the player's character if it was changed by an item during the current room.
  • Donation will now gradually accelerate if the player stays in contact with the donation machine. (applies to Greed donations as well)
  • Achievement popups can now be fast forwarded by tapping Start.
  • Updated charge bars to be less visually intrusive.
  • Added extra sounds and effects to creep attacks. (from Conjoined Fatties and Meatballs)
  • Following familiars are no longer pushed back when very close to the player. (behavior more consistent with Rebirth)
  • Co-op babies are now saved and restored by Added in AfterbirthGlowing Hour Glass Glowing Hour GlassGlowing Hour Glass Icon.png2 roomsWhen used, this item will rewind time, put Isaac back in the previous room, and undo anything that happened in the current room. Any health, pickups, or items gained or lost will be reset back to the previous state..
  • Added unique sounds for gold hearts, black hearts and gold bombs.
  • Added better visual feedback for gold hearts when breaking.
  • Gold hearts will now turn nearby enemies to gold when breaking.
  • Eden can now be randomed if the player has Eden tokens.
  • Trap buttons will now lock the room when spawning enemies.
  • Afterbirth floor exclusive enemies (i.e. burning/flooded/dank) will no longer appear in Rebirth floors.
  • Homunculus and Begotten will now be chained to an adjacent rock if the nearest wall is more than 1 grid cell away.
  • The Forsaken will now move to a more appropriate place to perform his Brimstone attack in L shaped rooms.
  • Multiple Forsakens in the same room will now be able to spawn their own bony each and will always spin their Brimstone attack in the same direction at the same speed.
  • Most sources of blue spiders will now throw those spiders out instead of spawning them on the ground.
  • Red chests inside a Devil Room will no longer teleport the player to the Devil Room.
  • Added in Afterbirth †Moving Box Moving BoxMoving Box Icon.png4 roomsIf the box is empty, picks up all items and pickups in a room and stores them. If the box is not empty, places all stored items and pickups in the current room. is now unlocked by using Pandora's Box Pandora's BoxPandora's Box Icon.pngOne time useUpon use, spawns certain pickups or items depending on the floor it is used on. Single-use. in the Dark Room. (as it seems to have been originally intended)
  • Co-op babies can no longer drop out while the player is playing a pickup animation. (could be used to exploit devil deals)
  • Poops spawned by E Coli E ColiE Coli Icon.pngGives "Turdy Touch" Effect. Enemies that touch Isaac are changed into poop. and Flush! Flush!Flush! Icon.png6 roomsChanges all enemies in the room into poop. Does not work on all enemies (Knights and bosses are immune). Instantly kills Dingle, Dangle, and Brownie. now react to damage similarly to regular poops.
  • Movable TNT barrels now take damage exactly like their regular counterparts. (they will take less shots to destroy at base damage)
  • Added in AfterbirthMine Crafter Mine CrafterMine Crafter Icon.png1 roomsWhen used, places an explosive TNT barrel that can be pushed and used to destroy rocks or damage enemies. If used a second time in the same room while the previous TNT barrel is still intact, it will remotely explode the TNT. will now spawn a TNT barrel directly at the player's position rather than on a nearby free tile.
  • All variants of Stone Grimaces now explode into rock debris when killed with Chaos Card or Added in Afterbirth †Little Horn Little HornLittle Horn Icon.pngAdds a chance to fire a piercing tear that instantly kills any enemy that it touches. and will no longer respawn when reentering the room if killed.
  • Head of Krampus Head of KrampusHead of Krampus Icon.png6 roomsFires a cross-patterned brimstone shot, just like The Fallen and Krampus shoot. no longer has a chance to rotate.
  • Achievements related to sleeping in beds (Added in Afterbirth †Wooden Cross Wooden CrossWooden Cross Icon.pngGrants a Holy Mantle shield upon entering a new floor, which protects against one hit of damage., Added in Afterbirth †Blanket BlanketBlanket Icon.pngGrants one soul heart. Upon entering a boss room, grants a shield that blocks one hit, then disappears.) will now be unlocked after the sleeping animation rather than before.
  • Bombs spawned from Added in AfterbirthScatter Bombs Scatter BombsScatter Bombs Icon.pngAdds 5 bombs. Isaac's bombs explode into 2-4 tiny bombs. will now actually scatter around.
  • Small bombs from Added in AfterbirthScatter Bombs Scatter BombsScatter Bombs Icon.pngAdds 5 bombs. Isaac's bombs explode into 2-4 tiny bombs. now leave smaller craters.

Bug Fixes[edit | edit source]

  • Fixed Mr. Fred not creating a blood explosion on death.
  • Fixed some minor graphical issues in the main menu.
  • Fixed special rocks (ie pots and mushrooms) not playing the appropriate sound in some floors.
  • Fixed boil rocks giving the wrong drops when destroyed in the Blue Womb.
  • Fixed The Haunt's champion variants and Delirium's Haunt form not being transparent during their first phase.
  • Delirium's Brownie form no longer transitions into the second phase (turning into a weakened Dangle) when at low health.
    • This also applies to Delirium's Black Brownie form (this prevents Delirium from dying early without properly playing its death animation).
  • Fixed Delirium turning into a Lil' Haunt.
  • Fixed multidimensional tears not scaling properly. (only one of the two layers would scale)
  • Fixed The Magician and Judgement having unwanted transparent pixels.
  • Fixed Added in Afterbirth †Lil Monstro Lil MonstroLil Monstro Icon.pngSpawns a familiar that fires clusters of tears. Must be charged before shooting. not playing its shooting animation.
  • Laser familiars like Robo-Baby Robo-BabyRobo-Baby Icon.pngFollows Isaac around, shooting enemies with an eye laser similar to Technology. and Lil Brimstone Lil BrimstoneLil Brimstone Icon.pngA Familiar that shoots a thin Brimstone beam. Must charge like Brimstone before shooting. can now damage fireplaces and poops.
  • Fixed Stone Grimaces not closing their eyes when the room is cleared.
  • Fixed a broken interaction between Added in Afterbirth †Lachryphagy LachryphagyLachryphagy Icon.pngIsaac's tears decelerate as they travel. Upon stopping or hitting an obstacle, they burst into 8 tears in all directions. Tears can be fired into other tears to feed them, increasing their damage. and Death's Touch Death's TouchDeath's Touch Icon.pngIncreases Damage by 1.5, reduces Tears by 0.3 and increases tear size. Grants piercing tears. Tears are replaced by Death's scythes, which is a cosmetic effect only..
  • Fixed an infinite recursion issue with Added in Afterbirth †Haemolacria HaemolacriaHaemolacria Icon.pngTears are now fired in an arc. Upon hitting the floor, an obstacle, or an enemy, they burst into many smaller tears in all directions. Increases tear delay. + Added in Afterbirth †Lead Pencil Lead PencilLead Pencil Icon.pngAfter every 15 tears fired, Isaac will fire a high-damage cluster of tears. and Added in Afterbirth †Haemolacria HaemolacriaHaemolacria Icon.pngTears are now fired in an arc. Upon hitting the floor, an obstacle, or an enemy, they burst into many smaller tears in all directions. Increases tear delay. + Dr. Fetus Dr. FetusDr. Fetus Icon.pngTears are replaced by bombs that benefit from bomb-enhancing effects and slide a fixed range after being fired. + Sad Bombs Sad BombsSad Bombs Icon.png+5 Bombs. Upon exploding, bombs shoot 8 tears off in every direction, similar to Tammy's Head. The tears are affected by any tear modifiers Isaac has on his own tears..
  • Fixed The Cage's grey creep not blinking like damaging creep normally does.
  • Fixed The Cage's rolling attack ending as soon as it begins.
  • Fixed Level 4 Added in AfterbirthBumbo BumboBumbo Icon.pngSpawns a beggar familiar which floats around the room and picks up any nearby coins, leveling up after collecting several coins. At level 2, Bumbo gains a body. At level 3, it begins to fire tears. At level 4, Bumbo chases enemies slowly, dealing contact damage. occasionally getting stuck trying to pick up a coin.
  • Fixed Mushrooms not displaying Status Effects, not playing their hiding animation, and moving around way too much when shot.
  • Added a generic firing animation to Brimstone BrimstoneBrimstone Icon.pngTears are replaced by a laser beam that pierces through all enemies and obstacles in its path and deals high damage. Can only be fired after a short charge-up period. for combos that keep its appearance but removes its ability to charge (i.e. Added in Afterbirth †Haemolacria HaemolacriaHaemolacria Icon.pngTears are now fired in an arc. Upon hitting the floor, an obstacle, or an enemy, they burst into many smaller tears in all directions. Increases tear delay.).
  • Troll bombs now play their drop sound when they hit the ground, not when they spawn.
  • Fixed Charmed enemies not being able to deal contact damage to a charmed target.
  • Fixed pressure plate rooms granting a charge when bombing out of them.
  • Fixed Spikes rarely staying in their raised position when clearing pressure plate rooms.
  • Fixed boss HP bar counting negative boss HP, causing it to report inaccurate values or even disappear when bosses are killed with very high damage.
  • Fixed Razor Blade Razor BladeRazor Blade Icon.pngUnlimitedUpon use, deals one heart of damage to Isaac and grants +1.2 damage for the current room. always giving blood tears when held instead of only when activated.
  • Fixed mushroom items not playing their unique pickup sound.
  • Fixed Added in Afterbirth †Euthanasia EuthanasiaEuthanasia Icon.pngAdds a chance to fire needles. If a needle kills an enemy, it bursts into more needles. being able to kill Ultra Greed during his transformation into Ultra Greedier.
  • Fixed the Greed fight before Ultra Greed not triggering the victory jingle when cleared.
  • Fixed Mega Clotties not making any sound when stomping.
  • Fixed a glitch which caused Shoop Da Whoop! Shoop Da Whoop!Shoop Da Whoop! Icon.png2 roomsFires a laser from Isaac's mouth. to only deal damage during its first few frames, and gave it a flickering impact effect.
  • Death's Heads no longer deal contact damage during their death animation.
  • Fixed bosses spawned by Added in Afterbirth †Delirious DeliriousDelirious Icon.png12 roomsSpawns a random charmed boss. dropping key pieces when killed in angel rooms.
  • Fixed Added in AfterbirthSuccubus SuccubusSuccubus Icon.pngSpawns a flying familiar that bounces around the room with a black aura, dealing rapid damage to any enemies inside it. While standing in the aura, Isaac gains a 1.5x tear damage multiplier. not granting its damage bonus when obtained via Added in AfterbirthCambion Conception Cambion ConceptionCambion Conception Icon.pngAfter taking damage a certain amount of times, a permanent demonic familiar spawns..
  • Fixed Devil deals costing soul hearts instead of red hearts if all of the player’s heart containers are empty.
  • Fixed orbitals jittering when spawning or entering a new room.
  • Fixed the Added in AfterbirthGlowing Hour Glass Glowing Hour GlassGlowing Hour Glass Icon.png2 roomsWhen used, this item will rewind time, put Isaac back in the previous room, and undo anything that happened in the current room. Any health, pickups, or items gained or lost will be reset back to the previous state. not discharging on use when overcharged.
  • Fixed an exploit involving the Added in AfterbirthGlowing Hour Glass Glowing Hour GlassGlowing Hour Glass Icon.png2 roomsWhen used, this item will rewind time, put Isaac back in the previous room, and undo anything that happened in the current room. Any health, pickups, or items gained or lost will be reset back to the previous state. and the Added in Afterbirth †Schoolbag SchoolbagSchoolbag Icon.pngAllows Isaac to hold two active items..
  • Fixed permanently charmed enemies not being able to shoot projectiles through each other.
  • Fixed use animation not playing when activating Satanic Bible Satanic BibleSatanic Bible Icon.png6 roomsUpon activation, Isaac gains a black heart..
  • Fixed Added in AfterbirthGlowing Hour Glass Glowing Hour GlassGlowing Hour Glass Icon.png2 roomsWhen used, this item will rewind time, put Isaac back in the previous room, and undo anything that happened in the current room. Any health, pickups, or items gained or lost will be reset back to the previous state. duplicating expendable familiars (blue flies/spiders) and perma-charmed enemies.
  • Fixed projectiles from perma-charmed enemies being blocked by familiars.
  • Dressing Table will no longer spawn locked items or items that were previously picked up.
  • Fixed Dressing Table visually duplicating itself when dropping a collectible after being bombed.
  • Fixed Rag Man's appear animation lasting much longer than intended.
  • Fixed The Fallen's brimstone attack being delayed due to previous changes to Krampus' AI.
  • Fixed Krampus' brimstone attack animation not matching the timing of the actual attack.
  • Fixed Famine starting his dash later than he's supposed to, resulting in a weird looking animation.
  • Fixed blue Famine's head playing its attack animation with the wrong timing.
  • Fixed surprise minibosses such as Greed and angels not playing the alternate boss music when they should.
  • Fixed The Hollow occasionally getting stuck along a wall.
  • Fixed The Hollow's champion variants often not dropping what they're supposed to drop.
  • Fixed Freds looking jittery when jumping over obstacles.
  • Some transformations will now properly override the player's skin color (Leviathan, Bob and Fun Guy)
  • Fixed Hive Mind Hive MindHive Mind Icon.pngIncreases the size of blue spiders and Blue Flies and doubles the amount of damage they deal. head costume not showing up in game
  • Fixed an issue where rebuilding the player's costume map would cause visual issues with costumes containing multiple head layers with different spritesheets (such as Mysterious Liquid Mysterious LiquidMysterious Liquid Icon.pngTears leave a small, short lasting pool of creep on impact or when their range is depleted.)
  • Runes and Dice Shard no longer play a paper sound on pickup.
  • Fixed Backasswards having a chance to give items that weren't unlocked yet or multiple copies of the same item, and allowing starting items to appear again during the run.
  • Fixed Mulligans and all variants instantly exploding if killed during their spawn animation.
  • Fixed Cod Worms being briefly vulnerable during their spawn animation.
  • Fixed Knights and Eyes being completely invincible during their spawn animation. (Knights will still block tears from the front and sides)
  • Fixed Blastocyst not splitting when killed while poisoned. (and awkwardly sliding towards the player during its splitting animation sometimes)
  • Added a small random delay before Gushers, Splashers and Blubbers can shoot projectiles (so they don't immediately shoot as soon as an enemy turns into them)
  • Fixed Doples firing their first shot from the middle of the room when the player enters the room while firing.
  • Fixed The Lamb's body not triggering the boss victory jingle if killed last.
  • Fixed Gemini's baby not making a small grunt when it detaches.
  • Mom's Knife Mom's KnifeMom's Knife Icon.pngIsaac's tears are replaced by a knife that pierces enemies, can travel through obstacles, and can hurt enemies while Isaac is holding it. Holding down the fire button before firing increases its range and power. now applies status effects in a more consistent way.
  • Fixed Big Horn getting instantly killed by Added in Afterbirth †Sharp Straw Sharp StrawSharp Straw Icon.png8 secondsDamages all enemies in the room. (among with other minor animation fixes)
  • Added interpolation to enemy projectiles with wiggling effects (they will now look much smoother in motion)
  • Fixed slot machines appearing as batteries in the minimap if a battery is present in the same room.
  • Fixed Rag Mega's invincibility ending later than what his animation would suggest.
  • Fixed mimic chests instantly opening and damaging the player if they spawn at their position when clearing a room.
  • Fixed Greed machines jamming even when the HUD displays a jamming rate of 0%.
  • Blue Gapers and Greed Gapers will now have a proper appear animation if spawned by a room rather than by a boss.
  • Fixed Portals being able to spawn two enemies in very quick succession upon entering a room.
  • Fixed some champion types rarely spawning what they're supposed to spawn in hard mode. (such as splitting champions)
  • Fixed enemies spawned from splitting champions sometimes appearing too far away from the original enemy.
  • Exploding champions will no longer explode if killed very close to the player 1 second within entering the room.
  • Unlockable pickups (i.e. gold bombs) will be replaced with a random variant if they haven't been unlocked yet.
  • Made Rage Creep's attack animation slightly longer so it won't start moving until its laser has fully disappeared.
  • Fixed Technology 2 Technology 2Technology 2 Icon.pngDecreases damage and replaces right eye tears with a unlimited range, piercing laser which fires continuously. beam being deleted and respawned twice if maintained during a room transition.
  • Fixed not being able to pick up a trinket if the player has that trinket's effect via the Added in AfterbirthError ErrorError Icon.pngGives a random trinket effect each room. trinket.
  • Fixed Added in Afterbirth †Death's List Death's ListDeath's List Icon.pngGrants a reward if all enemies in a room are killed in the order they are marked. streak ending if a perma-charmed enemy dies.
  • Fixed spawner familiars (i.e. sacks) not playing their floating animation until they spawn something.
  • Fixed Little C.H.A.D. Little C.H.A.D.Little C.H.A.D. Icon.pngA familiar who will drop a half red heart every 2 rooms. having missing animation frames.
  • Fixed Little C.H.A.D. Little C.H.A.D.Little C.H.A.D. Icon.pngA familiar who will drop a half red heart every 2 rooms. playing its kissing sound every room cleared instead of only when it spawns hearts.
  • Spawner familiars now have a more consistent spawning algorithm.
  • Fixed the The Left Hand The Left HandThe Left Hand Icon.pngReplaces brown chests and golden chests with red chests. not affecting stone chests.
  • Fixed Added in AfterbirthLil Gurdy Lil GurdyLil Gurdy Icon.pngGives Isaac a Gurdy familiar that will charge around the room dealing contact damage to enemies. Lil Gurdy is charged by holding down a fire button and letting go. The longer the button is held, the faster Lil Gurdy will fling itself across the screen. Lil Gurdy can pass over objects and obstacles in the room. being excessively loud when hitting walls.
  • Fixed some minor visual issues when turning back time with Added in AfterbirthGlowing Hour Glass Glowing Hour GlassGlowing Hour Glass Icon.png2 roomsWhen used, this item will rewind time, put Isaac back in the previous room, and undo anything that happened in the current room. Any health, pickups, or items gained or lost will be reset back to the previous state.. (such as fires being invisible during the teleport in animation)
  • Champion enemies will no longer deal contact damage if the non-champion version doesn't.
  • Charmed portals will now spawn permanently charmed enemies.
  • Fixed Added in AfterbirthSpear of Destiny Spear of DestinySpear of Destiny Icon.pngIn addition to tears, Isaac now holds a spear in front of him which deals damage equal to 2 times his tear damage, and occasionally inflicts fear. The spear cannot be thrown, but deals damage while it is in contact with an enemy. hit detection being shifted up by several pixels.
  • Fixed the Bestiary not counting kills for Ultra Greed and Ultra Greedier
  • Fixed Added in Afterbirth †Glaucoma GlaucomaGlaucoma Icon.pngAdds a chance to shoot concussive tears, causing enemies to walk around randomly. blood tears being completely invisible.
  • Fixed Added in AfterbirthMultidimensional Baby Multidimensional BabyMultidimensional Baby Icon.pngSpawns a familiar that will follow Isaac's movements on a 2.5 second delay. Tears that pass through the baby will be doubled and increase in speed. not working properly with Anti Gravity tears.
  • Fixed miniboss rooms not displaying the right character name if the player's character was changed via an item.
  • Fixed pickups not showing up in the Shop in the minimap.
  • Fixed red creep not being darkened in the Womb when playing Greed Mode.
  • Fixed Eve not starting with the Razor Blade Razor BladeRazor Blade Icon.pngUnlimitedUpon use, deals one heart of damage to Isaac and grants +1.2 damage for the current room. if the item itself hasn't been unlocked yet.
  • Holy Mantle Holy MantleHoly Mantle Icon.pngAutomatically negates first taken damage in every room. will no longer be restored if the player saves and continues after losing it.
  • Fixed Famine’s charge and Ultra Greed’s dash being able to instantly kill the player in some cases.
  • Boss heart drops now depend on the room seed. (they no longer depend on the order in which the bosses are killed)
  • Fixed daily related achievements incorrectly notifying that all challenges have been unlocked.
  • Fixed a memory leak occurring when exiting a run while a Co-op baby is still on screen.
  • Fixed up some code related to Co-op babies to make them work better with Added in AfterbirthGlowing Hour Glass Glowing Hour GlassGlowing Hour Glass Icon.png2 roomsWhen used, this item will rewind time, put Isaac back in the previous room, and undo anything that happened in the current room. Any health, pickups, or items gained or lost will be reset back to the previous state.
  • Fixed Lil Haunts having an incorrect sprite on the death screen (and in the bestiary)
  • Fixed a bug which caused certain Greed mode waves to be much more common than others.
  • Fixed missing animation warning spam caused by Stonies.
  • Fixed blue and purple fireplaces having a chance to drop multiple soul hearts if extinguished by multiple simultaneous explosions.
  • Fixed Added in AfterbirthIncubus IncubusIncubus Icon.pngA demonic familiar that follows Isaac and shoots tears identical to Isaac's in terms of damage, range, fire rate, and effects.' charge bar being incorrect with Mom's Knife Mom's KnifeMom's Knife Icon.pngIsaac's tears are replaced by a knife that pierces enemies, can travel through obstacles, and can hurt enemies while Isaac is holding it. Holding down the fire button before firing increases its range and power..
  • Fixed some special Co-op babies giving the wrong amount of hearts back to the player when removed.
  • Fixed items that lock the player's aim completely overriding the blink animation
  • Fixed a softlock with Mega Satan caused by Added in AfterbirthMine Crafter Mine CrafterMine Crafter Icon.png1 roomsWhen used, places an explosive TNT barrel that can be pushed and used to destroy rocks or damage enemies. If used a second time in the same room while the previous TNT barrel is still intact, it will remotely explode the TNT.
  • Fixed sacks dropping batteries and tarot cards way more often than intended.
  • Boosted announcer lines for the new cards and pills so they are consistent with the rest.
  • Added in Afterbirth †Parasitoid ParasitoidParasitoid Icon.pngAdds a chance to fire an egg sack which spawns slowing creep and spawns a blue fly or spider upon hitting an enemy. will no longer spawn spiders/flies when hitting invincible enemies such as stone grimaces.
  • Fixed using Added in Afterbirth †Mr. ME! Mr. ME!Mr. ME! Icon.png4 roomsSummons a controllable ghost that can perform various tasks depending on what it targets. with Added in AfterbirthCar Battery Car BatteryCar Battery Icon.pngCauses Isaac's activated item to activate twice on each use. causing stolen items to become non-solid.
  • Fixed Added in AfterbirthMarked MarkedMarked Icon.pngIsaac will now fire tears automatically directed at a red target on the ground which is controlled by the player. This allows for a full 360 degree tear firing radius. Can be overridden by other tear modifiers such as Mom's Knife or Brimstone. crosshair not blinking.
  • Fixed the inner part of the boss health bar casting a visible extra shadow.
  • Fixed some more enemies not having overlay effect attachment points.
  • Fixed the character selection wheel decelerating too early when randoming, cycling through characters at minimum speed until reaching the desired character
  • Added a failsafe to prevent crashes when too many entity queries are done in a single frame (this fixes a few crashes that occur when a lot of entities are on screen)
  • Lil Haunts are no longer considered bosses (meaning they can be caught with Added in AfterbirthFriendly Ball Friendly BallFriendly Ball Icon.png3 roomsThrowing the ball at an enemy instantly kills it and captures it. The captured enemy can later be released and will be charmed until it dies, persisting between floors.) and now have a unique death portrait.
  • Fixed a bunch of bestiary entries using the wrong portrait.
  • Locusts will now only spawn when a room has been entered for the first time. (prevents farming them using Added in Afterbirth †Door Stop Door StopDoor Stop Icon.pngThe last door Isaac went through stays open, allowing him to leave the room even if enemies are in it.)
  • Fixed Samson's Chains Samson's ChainsSamson's Chains Icon.pngPull a chain and ball behind you that will damage enemies on contact and is able to break stones.' links not being positioned properly with BFFS! BFFS!BFFS! Icon.pngIncreases the size and damage of familiars..
  • Fixed Gemini GeminiGemini (Item) Icon.pngSuture becomes attached to Isaac, and does touch damage to enemies within its attacking range. familiar chain not being properly interpolated.
  • Fixed Gemini GeminiGemini (Item) Icon.pngSuture becomes attached to Isaac, and does touch damage to enemies within its attacking range. familiar not scaling with BFFS! BFFS!BFFS! Icon.pngIncreases the size and damage of familiars..
  • Fixed Added in Afterbirth †Pay to Win Pay to WinPay to Win Icon.pngRestock boxes always spawn in Item Rooms. overriding Added in AfterbirthMore Options More OptionsMore Options Icon.pngTwo items spawn in every Treasure Room. Only one can be taken; the other will disappear..
  • Co-op babies can no longer borrow Guillotine GuillotineGuillotine Icon.pngIsaac's head is removed from his body and floats around him. Increases Damage by 1 and grants -1 Tear Delay. from the player. (very buggy interaction)
  • Fixed rock waves from Added in Afterbirth †Wait What? Wait What?Wait What Icon.png10 secondsIsaac farts, sending out rock waves. and Added in AfterbirthMega Bean Mega BeanMega Bean Icon.png3 roomsWhen used, the Mega Bean will freeze all enemies in the current room for a couple of seconds, deal 5 damage and poison any enemies near Isaac, and send a wave of spikes that deals 10 damage across the room in the direction Isaac is facing. being able to hurt Isaac's Heart Isaac's HeartIsaac's Heart Icon.pngIsaac himself is now immune to all damage, and a heart familiar appears and follows Isaac. If the heart is hurt, Isaac is hurt. and co-op babies
  • Fixed some pills not playing the correct sad/happy animation.
  • Fixed being able to clip through item pedestals by running into them.
  • Added in AfterbirthIncubus IncubusIncubus Icon.pngA demonic familiar that follows Isaac and shoots tears identical to Isaac's in terms of damage, range, fire rate, and effects. will no longer play sounds when firing Added in AfterbirthTech X Tech XTech X Icon.pngTears are replaced with laser rings that pierce through enemies and deal damage to enemies within them. Can be charged to increase the size of the ring.. (was particularly annoying with Brimstone)
  • Fixed Scarred Para-Bites sometimes spawning a projectile at the player's position when killed during their appear animation.
  • Fixed achievement popups being unnecessarily delayed once the player has played 31 or more dailies.
  • Fixed Added in Afterbirth †Adrenaline AdrenalineAdrenaline Icon.pngIncreases damage based on how many empty heart containers Isaac has. not updating when taking certain health affecting pills (such as Hematemesis)
  • Fixed Added in Afterbirth †Dark Prince's Crown Dark Prince's CrownDark Prince's Crown Icon.pngIncreases range, tears, and shot speed when at exactly one red heart. only reapplying its buff 1 frame after entering a new room, triggering Found HUD each time.
  • Bombs swallowed by Chub will now do their proper explosion effects.
  • Fixed Flush! Flush!Flush! Icon.png6 roomsChanges all enemies in the room into poop. Does not work on all enemies (Knights and bosses are immune). Instantly kills Dingle, Dangle, and Brownie. and Brimstone BrimstoneBrimstone Icon.pngTears are replaced by a laser beam that pierces through all enemies and obstacles in its path and deals high damage. Can only be fired after a short charge-up period.+The Ludovico Technique The Ludovico TechniqueThe Ludovico Technique Icon.pngInstead of firing tears, Isaac controls one floating tear that hover over obstacles. This tear deals constant damage when held in place over an enemy. affecting friendly enemies.
  • Added safeguards to prevent boss champions that double themselves (i.e. Monstro, The Cage and Gurdy Jr.) from spawning on top of the player upon entering the room.
  • Fixed Guillotine GuillotineGuillotine Icon.pngIsaac's head is removed from his body and floats around him. Increases Damage by 1 and grants -1 Tear Delay. not firing from the right position with Added in Afterbirth †Duct Tape Duct TapeDuct Tape Icon.pngStops Isaac's familiars from moving..
  • Fixed some Caves/Depths rooms containing Wall Creeps being slightly broken since Booster #4.
  • Fixed a corner wall entity not being generated in one of the L room shapes. (shape 12, causes some issues, notably with A Card Against Humanity)
  • Fixed being able to fire infinite rockets when using Doctor's Remote Doctor's RemoteDoctor's Remote Icon.png2 roomsSets a big red target on the ground (similar to the Epic Fetus item) which can be controlled with tear controls. After 6 seconds or by pressing space again, a huge explosive missile hits it, which damages all enemies caught in its blast radius. with Added in AfterbirthMarked MarkedMarked Icon.pngIsaac will now fire tears automatically directed at a red target on the ground which is controlled by the player. This allows for a full 360 degree tear firing radius. Can be overridden by other tear modifiers such as Mom's Knife or Brimstone..
  • Fixed sacks dropped from Added in Afterbirth †Sack of Sacks Sack of SacksSack of Sacks Icon.pngSpawns a sack familiar that has a chance to drop a sack upon clearing a room. often containing identical cards.
  • Fixed being able to teleport into an Error room on top of a hazard. (i.e. a spike chest)
  • Added in Afterbirth †Parasitoid ParasitoidParasitoid Icon.pngAdds a chance to fire an egg sack which spawns slowing creep and spawns a blue fly or spider upon hitting an enemy. tears now spawn blue flies/spiders at their position rather than the player's. (spawned flies and spiders will be thrown towards the player before targeting enemies)
  • Fixed Added in AfterbirthAthame AthameAthame Icon.pngWhenever Isaac takes damage, a black ring briefly appears around Isaac, dealing damage to all nearby enemies. and Added in AfterbirthMaw of the Void Maw of the VoidMaw of the Void Icon.png+1.0 Damage Up. After continuously firing tears for 2.5 seconds, a red cross appears on Isaac's head that, upon releasing the fire button, creates a black ring that rapidly deals damage equal to Isaac's tear damage to any enemies in contact with it. being able to spawn many black hearts when damaging enemies with damage resistance. (i.e. Mushrooms)
  • Fixed some on-kill effects (such as Gimpy GimpyGimpy Icon.pngHas a chance of spawning a soul heart or black heart when taking damage. Enemies have a chance to drop a Half Red Heart after being killed. and Infestation 2 Infestation 2Infestation 2 Icon.pngSpawns allied blue spiders from killed enemies.) triggering more than once when an enemy is killed by simultaneous damage sources.
  • Fixed Envy's split parts sharing the same drop seed.
  • Added in AfterbirthMine Crafter Mine CrafterMine Crafter Icon.png1 roomsWhen used, places an explosive TNT barrel that can be pushed and used to destroy rocks or damage enemies. If used a second time in the same room while the previous TNT barrel is still intact, it will remotely explode the TNT. will now spawn two TNT barrels with Added in AfterbirthCar Battery Car BatteryCar Battery Icon.pngCauses Isaac's activated item to activate twice on each use. instead of spawning one and then immediately detonating it.
  • Chaos Card and Added in Afterbirth †Little Horn Little HornLittle Horn Icon.pngAdds a chance to fire a piercing tear that instantly kills any enemy that it touches. will now properly kill fireplaces without a blood effect.
  • Fixed being able to force a revival with Guppy's Collar Guppy's CollarGuppy's Collar Icon.pngGrants Isaac a permanent 50% chance to respawn with 1/2 of a red heart after death. or Broken Ankh Broken AnkhBroken Ankh Icon.pngWhen held, Isaac has a chance to be revived as ???. Can occur multiple times in the same run. by saving and resuming the run after dying.
  • Fixed portals from Added in AfterbirthVentricle Razor Ventricle RazorVentricle Razor Icon.pngUnlimitedCan be used to place an orange portal and a blue portal. Upon entering a portal, Isaac is teleported to the other portal. sometimes not appearing when created in a large room which is then reentered from a different door.
  • Fixed not being able to enter Added in AfterbirthVentricle Razor Ventricle RazorVentricle Razor Icon.pngUnlimitedCan be used to place an orange portal and a blue portal. Upon entering a portal, Isaac is teleported to the other portal. portals within the same room if the player is in an off screen room. (i.e. Devil Room)
  • Fixed Devil Room doors not having proper door animations and disappearing when closed.
  • Fixed Mom's Wig Mom's WigMom's Wig Icon.pngAdds a chance to spawn blue spiders when firing tears. Restores 1 red heart. spawning blue spiders way too frequently when the player has a charged attack.
  • Fixed Added in AfterbirthKidney Stone Kidney StoneKidney Stone Icon.pngRandomly while firing tears, Isaac will stop firing and turn red, where he will charge and release a lot of 'tears' in one go. In the burst of tears is a kidney stone which deals a lot of damage. not updating the player's firerate on the final tick of the tear burst. (effectively leaving the player with -1 tear delay until the tear state is updated)
  • Fixed being able to keep the firerate buff from Added in AfterbirthKidney Stone Kidney StoneKidney Stone Icon.pngRandomly while firing tears, Isaac will stop firing and turn red, where he will charge and release a lot of 'tears' in one go. In the burst of tears is a kidney stone which deals a lot of damage. permanently by picking up an item that changes Isaac's attack type during the tear burst.
  • Fixed Added in Afterbirth †Eden's Soul Eden's SoulEden's Soul Icon.pngOne time useSpawns two item pedestals. copying the charge of the previously held active item instead of starting at 0 charge.
  • Credits and epilogue will now adapt to the game's volume settings instead of always playing at max volume.
  • Familiars will now be teleported to the player's new position if it was changed by a boss such as Gurdy or Mom's Heart.
  • Fixed shadow layer not being loaded correctly in any room that doesn't have the standard 1x1 shape.
  • FX layers with parallax will now smoothly transition to their new position upon teleporting across the room.
  • Fixed A Lump of Coal A Lump of CoalA Lump of Coal Icon.pngThe more distance tears travel, the more damage they will do. and The Ludovico Technique The Ludovico TechniqueThe Ludovico Technique Icon.pngInstead of firing tears, Isaac controls one floating tear that hover over obstacles. This tear deals constant damage when held in place over an enemy. tears looking odd due to always using the biggest tear sprite.

Mod Support[edit | edit source]

  • Fixed alt skin color spritesheets not loading for mod items.
  • Fixed a crash when disabling a mod that contains custom characters.
  • Character selection ring now has a perspective effect which scales with the number of characters so it never looks cluttered.
  • Custom characters will now be placed before Random rather than after.
  • Added a custom implementation for the Lua print() function which outputs to the debug console.
  • Fixed Player:GetName() causing crashes with co-op babies.
  • Added MC_PRE_ROOM_ENTITY_SPAWN Lua callback for entities spawned as part of a room's layout (int type, int variant, int subtype, int gridindex, int seed) -> int type, int variant, int subtype.
  • Fixed some mod callbacks crashing if anything other than a table is returned.

Debug Console Changes[edit | edit source]

  • Fixed spawn command ignoring subtype when spawning entities by name. (i.e. heart pickups)
  • Console now slides in and out faster and more smoothly, accepts input even while sliding in, and can be closed with Esc.
  • Added support for non QWERTY keyboard layouts.
  • Backspace can now be held to delete characters quickly.
  • Text cursor can now be moved left and right in the console.
  • Home and End will now move the cursor to the beginning/end of the current command.
  • Ctrl+Home and Ctrl+End will scroll to the beginning and end of the history.
  • Numpad Enter can now be used to run commands.
  • Added "clear" command to clear the history.
  • Clamped console history to 1024 entries to limit memory usage.
  • Clamped command buffer to 64 entries to limit memory usage.
  • Commands rerun from the command buffer will now be moved rather than copied to the front. (so running the same command multiple times doesn't clutter the command buffer)
  • Condensed errors printed by the "lua" command so there is less useless junk at the beginning of the error string.
  • Lua errors will now be printed to the console.
  • Added automatic text wrapping to both the console history and input.
  • Added ConsoleFont parameter to options.ini, set to 1 to use a smaller font. (0 by default, can also be switched in game using Ctrl-Numpad+ and Ctrl-Numpad-)
  • Added FadedConsoleDisplay toggle to options.ini, shows recent console on screen even if the console is closed. (disabled by default)
  • Added SaveCommandHistory toggle to options.ini, enables or disables saving the console command history between sessions. (enabled by default)
  • Debug 4 (high damage) will now actually increase the player's damage stat so it applies to all attack types.
  • Debug 5 now shows information about the current room. (notably the room ID)
  • Fixed luamod reporting a success if Lua errors were encountered while loading a mod.

Undocumented Changes[edit | edit source]

New Characters[edit | edit source]

New Items[edit | edit source]

  • Added in Afterbirth †Marrow MarrowMarrow Icon.pngGrants one bone heart and spawns three red heart pickups. (541)
  • Added in Afterbirth †Slipped Rib Slipped RibSlipped Rib Icon.pngSpawns a bone familiar that circles around Isaac and reflects enemy shots. (542)
  • Added in Afterbirth †Hallowed Ground Hallowed GroundHallowed Ground Icon.pngSpawns a white poop familiar, which turns into a white poop when Isaac is hurt. (543)
  • Added in Afterbirth †Pointy Rib Pointy RibPointy Rib Icon.pngSpawns a bone familiar that can be aimed with the fire buttons and does contact damage. (544)
  • Added in Afterbirth †Book of the Dead Book of the DeadBook of the Dead Icon.png4 roomsUpon use, spawns a charmed Bony or an orbital bone for each enemy killed in the current room. (545)
  • Added in Afterbirth †Dad's Ring Dad's RingDad's Ring Icon.pngCreates a ring of light around Isaac that petrifies enemies in contact. (546)
  • Added in Afterbirth †Divorce Papers Divorce PapersDivorce Papers Icon.pngSpawns a Mysterious Paper, increases tears, and grants a bone heart. (547)
  • Added in Afterbirth †Jaw Bone Jaw BoneJaw Bone Icon.pngSpawns a familiar that flies the room while firing, dealing double Isaac's tear damage to enemies that come in contact and retrieving pickups. (548)
  • Added in Afterbirth †Brittle Bones Brittle BonesBrittle Bones Icon.pngReplaces all red hearts with 6 empty bone hearts. Upon losing a bone heart, Isaac fires bones in 8 directions and permanently gains a tears up. (549)
  • Added in Afterbirth †Broken Shovel Broken ShovelBroken Shovel 1 Icon.png4 roomsWhile held, causes multiple Mom's Foots to come down and stomp on Isaac. One of two parts necessary to create Mom's Shovel. (550)
  • Added in Afterbirth †Broken Shovel Broken ShovelBroken Shovel 2 Icon.pngOne of two parts necessary to create Mom's Shovel. (551)
  • Added in Afterbirth †Mom's Shovel Mom's ShovelMom's Shovel Icon.png4 roomsSpawns a trapdoor that leads to the next floor upon activation. Unlocks The Forgotten when used on a mound of dirt that appears in The Dark Room. (552)

New Trinkets[edit | edit source]

  • Added in Afterbirth †Finger Bone Finger BoneFinger Bone Icon.pngGrants a chance to gain a bone heart upon taking damage. (128)

New Pickups[edit | edit source]

New Objects[edit | edit source]

New Synergies[edit | edit source]

  • Mom's Knife Mom's KnifeMom's Knife Icon.pngIsaac's tears are replaced by a knife that pierces enemies, can travel through obstacles, and can hurt enemies while Isaac is holding it. Holding down the fire button before firing increases its range and power. will now synergize with Added in AfterbirthHoly Light Holy LightHoly Light Icon.pngIsaac has a random chance to fire a Holy tear, which, when it hits an enemy, will spawn a Crack the Sky-style light beam on the same enemy, dealing damage..
  • Mom's Knife Mom's KnifeMom's Knife Icon.pngIsaac's tears are replaced by a knife that pierces enemies, can travel through obstacles, and can hurt enemies while Isaac is holding it. Holding down the fire button before firing increases its range and power. will now synergize with Mysterious Liquid Mysterious LiquidMysterious Liquid Icon.pngTears leave a small, short lasting pool of creep on impact or when their range is depleted..

Bug Fixes[edit | edit source]

  • Fixed the bug where Super Envy dropped Shoop Da Whoop! Shoop Da Whoop!Shoop Da Whoop! Icon.png2 roomsFires a laser from Isaac's mouth. instead of Forever Alone Forever AloneForever Alone Icon.pngSpawns a blue attack fly that orbits a long distance from Isaac.. (According to the developers, this was always intended, but has been bugged since the initial port of the game.)
  • Fixed the bug where the Added in Afterbirth †Walnut WalnutWalnut Icon.pngTaking damage has a small chance to destroy the trinket and spawn various pickups. trinket broke when touching a shopkeeper.
  • Fixed the bug where X-Ray Vision X-Ray VisionX-Ray Vision Icon.pngReveals and opens all Secret Room and Super Secret Room entrances. would not work properly on the The Void floor.
  • Fixed the bug where saving and quitting would duplicate a multi-segment boss spawned by Added in Afterbirth †Delirious DeliriousDelirious Icon.png12 roomsSpawns a random charmed boss..
  • Fixed the bug where Added in Afterbirth †Delirious DeliriousDelirious Icon.png12 roomsSpawns a random charmed boss. would spawn a Mega Satan head and it would do nothing. (It is no longer possible to spawn a Mega Satan head.)
  • Fixed the bug where you could take damage from Added in Afterbirth †Jacob's Ladder Jacob's LadderJacob's Ladder Icon.pngTears fire sparks of electricity in random directions upon hitting an obstacle or enemy. lasers that stayed on the screen during a room transition.

Graphical Changes[edit | edit source]

Room Changes[edit | edit source]

Miscellaneous:

  • Deleted/moved props in MANY rooms.
  • Changed difficulty for many rooms from easy values to harder values.

Special rooms:

  • Moved the TNT barrels one square away from the entrances in Treasure Room #13 (to prevent unavoidable with Mama Mega).
  • Fixed misc. doors in I AM ERROR rooms.
  • Replaced Lovers Cards with Black Runes in I AM ERROR room #23.
  • 2x Attack Flies were moved away from the door in I AM ERROR room #17.
  • 3x soul heart Super Secret Room is now weight 0.1 (from 1.0).
  • 3x black heart Super Secret Room is now weight 0.1 (from 1.0).
  • 5x rune Super Secret Room is now weight 0.25 (from 1.0).
  • 8x random pickup Super Secret Room is now weight 0.25 (from 1.0).
  • 2x black heart Curse Room is now weight 0.25 (from 1.0).
  • Replaced the Lovers Card with a Black Rune in Curse Room #21.
  • Replaced a Rag Man with a Null in Dirty Bedroom #14.
  • Monstro room #1015 had difficulty changed from 10 to 1.
  • Moved 2x Blastocyst closer to the center of the room in room #2042.

Basement:

  • Changed some Sleepy Gapers to normal Gapers in a bunch of rooms.
  • Changed some Flaming Fatties to normal Fatties in a bunch of rooms.
  • Deleted 2x poops in narrow room #1030.
  • Deleted 2x pots in narrow room #722.
  • Changed the Rag Man to a Ragling in narrow room #755.
  • Moved 3x Mega Troll Bombs behind all of the flies in narrow room #753.
  • Deleted some fires and changed some Flaming Hoppers to Hoppers in room #691.
  • Changed one Gaper to a pot in narrow room #616.
  • Moved the TNT barrels one square away from the doors in room #274.
  • Deleted two duplicate misplaced entities in room #281.
  • Deleted two null rooms.

Cellar:

  • Changed some Sleepy Gapers to normal Gapers in a bunch of rooms.
  • Changed some Flaming Fatties to normal Fatties in a bunch of rooms.
  • Moved a Mulliboom by 1 square in room #61.
  • Moved both Mullibooms by 1 square in room #62.
  • Added 2x spider web stacked entities to room #87.
  • Deleted 2x spiders from room #99.
  • Removing two rocks from room #106.
  • Moved 2x spiders away from the doors by 1 square in room #110.
  • Moved 2x spiders away from the doors by 1 square in room #113.
  • Moved 2x spiders to the opposite corners in room #114.

Burning Basement:

  • Deleted two null rooms.

Caves:

  • Changed some Drowned Chargers to Chargers in a bunch of rooms.
  • Changed some Drowned Hives to Hives in a bunch of rooms.
  • Changed some Drowned Boom Flies to Boom Flies in a bunch of rooms.
  • Deleted 2x Pale Fatties and changed 2x Pale Fatties to 2x Fatties in room #917.
  • Deleted 6x Troll Bombs from room #875.
  • Deleted 3x Blue Gapers from room #885.
  • Deleted 8x Pale Fatties and changed 1x Pale Fatty to 1x Fatty in room #843.
  • Deleted 6x Pale Fatties in room #850.
  • Deleted 6x Pale Fatties and changed 4x Pale Fatty to 4x Fatty in room #854.
  • Deleted 2x Pale Fatties and changed 4x Pale Fatty to 4x Fatty in room #805.
  • Deleted 2x Pale Fatties and changed 4x pits with 3x rocks in room #798.
  • Deleted 2x Pale Fatties and changed 4x pits with 3x rocks in room #818.
  • Deleted 1x Pale Fatty and changed 6x Pale Fatties to 6x Fatties in L room #760.
  • Moved 2x Pale Fatties to be closer to the center in L room #739.
  • Changed 4x Pale Fatties to 4x Fatties in 2x1 room #720.
  • Deleted 6x Troll Bombs from narrow room #690.
  • Deleted 1x Pale Fatty and 1x Blubber from room #596.
  • Deleted 1x Conjoined Fatty from room #540.
  • Redesigned room #60 so that it only has 2 doors instead of 4.
  • Changed 2x Pits to 2x rocks in room #61.
  • Deleted 6x Pits to room #66.
  • Deleted 8x Pits to room #67.
  • Deleted 4x Pits to room #72.
  • Deleted 2x Spitties from room #74.
  • Added 2x cobwebs to room #75.
  • Moved 2x Spitties in room #79.
  • Deleted 2x pits in room #80.
  • Deleted 2x Chargers from room #87.
  • Deleted 1x Moter from room #110.
  • Deleted 1x Red Host from room #164.
  • Deleted 4x Pits and moved 4x Maws to the empty spaces on room #363 (to stop the bug where they would glitch out of the wall upon first spawning).
  • Changed 2x Squirt to 2x Corn in room #938.

Catacombs:

  • Changed some Drowned Chargers to Chargers in a bunch of rooms.
  • Changed some Drowned Hives to Hives in a bunch of rooms.
  • Changed some Drowned Boom Flies to Boom Flies in a bunch of rooms.
  • Deleted 8x Pale Fatties in room #843.
  • Deleted 5x Pale Fatties in room #850.
  • Deleted 6x Pale Fatties and changed 4x Pale Fatty to 4x Fatty in room #854.
  • Deleted 4x Pale Fatties in room #805.
  • Deleted 2x Pale Fatties in room #798.
  • Reworked room #818 to only have half of the enemies.
  • Deleted 1x Pale Fatty and changed 6x Pale Fatties to 6x Fatties in L room #760.
  • Moved 2x Pale Fatties to be closer to the center in L room #739.
  • Deleted 6x Troll Bombs from narrow room #690.
  • Deleted 1x Pale Fatty and 1x Blubber from room #596.
  • Deleted 1x Conjoined Fatty from room #540.
  • Deleted 2x Splasher from room #213.
  • Deleted 4x Pits and moved 4x Maws to the empty spaces on room #363 (to stop the bug where they would glitch out of the wall upon first spawning).

Flooded:

  • Deleted 2x Pale Fatties in room #917.
  • Deleted 6x Troll Bombs from room #875.
  • Deleted 3x Blue Gapers from room #885.
  • Deleted 8x Pale Fatties and changed 1x Pale Fatty to 1x Fatty in room #843.
  • Deleted 6x Pale Fatties in room #850.
  • Deleted 6x Pale Fatties and changed 4x Pale Fatty to 4x Fatty in room #854.
  • Deleted 2x Pale Fatties and changed 4x Pale Fatty to 4x Fatty in room #805.
  • Deleted 2x Pale Fatties and changed 4x pits with 3x rocks in room #798.
  • Deleted 2x Pale Fatties and changed 4x pits with 3x rocks in room #818.
  • Deleted 1x Pale Fatty and changed 6x Pale Fatties to 6x Fatties in L room #760.
  • Moved 2x Pale Fatties to be closer to the center in L room #739.
  • Changed 4x Pale Fatties to 4x Fatties in 2x1 room #720.
  • Deleted 6x Troll Bombs from narrow room #690.
  • Deleted 1x Pale Fatty and 1x Blubber from room #596.
  • Deleted 1x Conjoined Fatty from room #540.
  • Deleted 4x Pits and moved 4x Maws to the empty spaces on room #363 (to stop the bug where they would glitch out of the wall upon first spawning).
  • Deleted 1x Cross Turret in room #979.
  • Deleted 1x Cross Turret in room #980.
  • Deleted 1x Cross Turret in room #984.
  • Deleted 1x Cross Turret in room #985.
  • Deleted 1x Cross Turret in room #986.
  • Deleted 1x Cross Turret in room #987.
  • Changed 2x Cross Turrets with rocks in room #988.

Depths:

  • Changed some Dank Globins to Globins in a bunch of rooms.
  • Changed some Dank Squirts to Squirts in a bunch of rooms.
  • Changed some Dank Death's Heads to Death's Heads in a bunch of rooms.
  • Deleted a bugged stacked Blister and changed 2x Blisters to 2x Keepers in room #898.
  • Reworked room #799 to only have 2x Blue Gapers.
  • Deleted 2x Trolls Bombs and moved 2x Trolls Bombs in room #699.
  • Changed 1x Magician card to 1x random card in room #286.
  • Moved 1x Begotten from the bottom to the center in room #316.
  • Deleted empty room #378 entirely.
  • Deleted the bugged stacked rock in room #430.
  • Moved 1x Rage Creep up one square in room #457 (it was bugged and killing the other two Rage Creeps on spawn).
  • Moved 4x Corns closer to the center in room #912.
  • Deleted 1x Cross Turret and 1x Vis in room #914.

Necropolis:

  • Changed some Dank Globins to Globins in a bunch of rooms.
  • Changed some Dank Squirts to Squirts in a bunch of rooms.
  • Changed some Dank Death's Heads to Death's Heads in a bunch of rooms.
  • Deleted a bugged stacked Blister in room #898.
  • Deleted 1x Heart and 1x Mask in room #4.
  • Reorganized room #10 to have 2 doors instead of 4 and have 4 Gurgles instead of 6.
  • Changed 1x Magician card to 1x random card in room #286.
  • Moved 1x Begotten from the bottom to the center in room #316.
  • Added 2x Sacks offscreen to the left in room #423.
  • Deleted the bugged stacked rock in room #430.
  • Deleted 1x Cross Turret in room #910.
  • Deleted 1x Cross Turret in room #912.
  • Moved 1x Cross Turret and 1x Brain in room #915.
  • Deleted 1x Cross Turret in room #917.
  • Changed 4x Spikes to 4x Retracting Spikes in room #918.
  • Changed 2x Cross Turrets to 2x rocks in room #919.
  • Added an explicit chance for each Host in narrow room #922 to spawn as a Red Host.
  • Deleted 1x Cross Turret in room #923.
  • Deleted 1x Cross Turret in room #924.
  • Deleted 2x Squirt in room #925.
  • Deleted 1x Cross Turret and added 8x rocks around the other 2 Cross Turrets in L room #926.
  • Deleted 1x Cross Turret in room #927.
  • Deleted 1x Cross Turret and added 4x rocks to room #929.
  • Changed 2x Cross Turrets to 2x skulls in room #932.
  • Added 2x blocks and 4x skulls and 9x rocks to room #933.
  • Added 6x rocks in room #934.
  • Added 6x rocks in room #935.
  • Added 4x rocks in room #938.
  • Deleted 1x Cross Turret in room #940.
  • Changed 1x Cross Turret with 1x Constant Stone Shooter (Down) in room #941.
  • Deleted 2x Cross Turret and 1x Mobile Host in room #942.
  • Deleted 1x Cross Turret and 1x Squirt and 2x poops and added 2x Dips in room #944.
  • Added a chance for each Cross Turret to be a rock in room #953.
  • Deleted 1x Cross Turret in room #954.

Dank:

  • Deleted a bugged stacked Blister and changed 2x Blisters to 2x Keepers in room #898.
  • Reworked room #799 to only have 2x Blue Gapers.
  • Deleted 2x Trolls Bombs and moved 2x Trolls Bombs in room #699.
  • Changed 1x Magician card to 1x random card in room #286.
  • Moved 1x Begotten from the bottom to the center in room #316.
  • Deleted empty room #378 entirely.
  • Deleted the bugged stacked rock in room #430.
  • Moved 1x Rage Creep up one square in room #457 (it was bugged and killing the other two Rage Creeps on spawn).

Womb:

  • Changed some Scarred Guts to Guts in a bunch of rooms.
  • Changed some Scarred Para-Bite to Para-Bite in a bunch of rooms.
  • Deleted 1x Nerve Ending in narrow room #825.
  • Changed 4x Magician Card to 4x random card in narrow room #687.
  • Added 2x Polyps to 2x2 room #424 to prevent unavoidable damage when entering from the bottom-left door.
  • Changed 2x Spikes to 2x Retracting Spikes in 2x1 room #841.
  • Deleted 1x Cross Turret and added 2x rocks and 1x Leech to room #842.
  • Reworked room #844 to have 1x Cross Turret (instead of 2) and other hazards.
  • Deleted 1x Cross Turret from room #845.
  • Moved 2x Cross Turret upwards in room #846 (to make the room easier).

Utero:

  • Changed some Scarred Guts to Guts in a bunch of rooms.
  • Changed some Scarred Para-Bite to Para-Bite in a bunch of rooms.
  • Deleted 1x Nerve Ending in narrow room #825.
  • Reworked narrow room #693 to have 1x Bloodshot Eye (instead of 2) protected by 1x Red Poop.
  • Deleted 1x Bloodshot Eye in narrow room #609.
  • Added 2x Polyps to 2x2 room #424 to prevent unavoidable damage when entering from the bottom-left door.
  • Changed 2x Gaping Maws to 2x Red Poops in room #424.
  • Deleted 1x Cross Turret and added 2x rocks to room #845.
  • Deleted 1x Cross Turret to L room #847.
  • Changed 2x Blue Fires to 2x Red Poops in room #853.
  • Reworked room #854 to have 1x Cross Turrets (instead of 2).
  • Deleted 2x Cross Turrets and added 2x Flesh Mobile Hosts to 2x2 room #859.

Scarred:

  • Deleted 1x Nerve Ending in narrow room #825.
  • Changed 4x Magician Card to 4x random card in narrow room #687.
  • Added 2x Polyps to 2x2 room #424 to prevent unavoidable damage when entering from the bottom-left door.

Cathedral:

  • Deleted 1x Cross Turret from room #342.
  • Added 8x rocks to surround the 2x Cross Turrets in room #344.
  • Moved 2x Cross Turrets and 2x Boneys in room #321.
  • Moved 2x Cross Turrets and 4x rocks in room #322.
  • Moved 4x Cross Turrets in room #323.
  • Added 16x rocks to surround the 4x Cross Turrets in room #324.
  • Moved 2x Cross Turrets to be closer together in narrow room #326.
  • Room #327 (with 1x Cross Turret and 2x Portal and 2x Death's Head) is only half as likely to appear now.
  • Added 4x rocks to surround the 2x Cross Turrets in room #331.
  • Deleted 2x Boneys and changed 2x rocks with 2x pits in room #333.

Sheol:

  • Deleted 2x Nulls from narrow room #361.
  • Changed 1x bugged Begotten Chain to 1x Begotten in room #334.
  • Changed 2x bugged Begotten Chain to 2x Begotten in room #341.
  • Changed 2x bugged Begotten Chain to 2x Begotten in room #269.
  • Changed 1x bugged Begotten Chain to 1x Begotten in room #255.
  • Moved 1x Begotten one square upward in room #184.
  • Moved 2x Begotten from the center blocks to the top blocks in 2x2 room #224.
  • Moved 2x Cross Turrets and added 2x rocks in room #406.
  • Moved 2x Brimstone Heads in room #407.
  • Deleted 1x Cross Turret from room #408.
  • Added 2x Golden Chest to narrow room #409.
  • Moved 2x Cross Turrets in room #416.
  • Moved 2x Cross Turrets in room #418.
  • Added x8 rocks around the Cross Turrets in room #419.
  • Moved 2x Cross Turrets closer together in room #423.
  • Added x6 rocks around the Cross Turrets in room #425.

The Chest:

  • Moved 2x Sisters Vis in room #94 to prevent unavoidable damage.
  • Moved 2x The Forsaken in room #296 closer to the center of the room.
  • Deleted the room with 1x Bony and 1x Lil' Haunt (#31).

The Dark Room:

  • Changed 3x High Priestess card to x3 random rune in narrow room #291.
  • Changed 1x The Forsaken with x2 Lokii in narrow room #263.
  • Changed 1x Super Wrath with x1 Wrath in room #29.

Greed Mode - The Shop

  • Added x1 fly from room #242 (so that there would be at least 1 enemy in the wave).

Other changes[edit | edit source]

Broken Modem Icon.png Version History Broken Modem Icon.png

Removed in Afterbirth Rebirth v0.9, v1.0, v1.01, v1.02, v1.031, v1.032, v1.04, v1.041, v1.05, v1.05 Hotfix
Added in Afterbirth Afterbirth v1.06, v1.06 Hotfix, v1.06.0051, v1.06.0052, v1.06.0059, v1.06.0060, v1.06.0067, v1.06.0076, v1.06.0109
Added in Afterbirth † Afterbirth † v1.06.0180, v1.06.0181, v1.06.0182, v1.06.0183, v1.06.0185, v1.06.0187, v1.06.0188, v1.06.0190, v1.06.0192, v1.06.0192 (Re-release), v1.06.0193, v1.06.0211
Booster Pack #1 v1.06.J34, v1.06.J39
Booster Pack #2 v1.06.J75, v1.06.J85
Booster Pack #3 v1.06.J99, v1.06.J103, v1.06.J104
Booster Pack #4 v1.06.J113, v1.06.J114, v1.06.J119, V1.06.J127
Booster Pack #5 v1.06.J149, v1.06.J150, V1.06.J168