The Binding of Isaac: Repentance (Pre-Release)

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This article contains info on upcoming content.
This information was obtained from teasers or unreleased demos and is not representative of the final product. This article will need to be checked for quality and updated once it is released.
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Issues: As this is information relating to unreleased content, there may be more information planned to be released by the developers in the following months.

The following information/confirmations of The Binding of Isaac: Repentance, an upcoming DLC set to be released in 2019, has been collected:

2018[edit | edit source]

August[edit | edit source]

August 30th (Reveal)[edit | edit source]

A "title reveal" for a new expansion was released by Nicalis on Youtube.

The trailer revealed the title of the expansion and its logo - strikingly similar to that of The Binding of Isaac: Antibirth, a fan-made expansion of the game that received critical acclaim from the community but despite popular demand seemed to have little chance of being brought to the official game. Additionally, it was announced on Twitter that Repentance would be available for play at the PAX West 2018 Convention.

August 31st[edit | edit source]

The demo version of Repentance playable at PAX confirmed suspicions that the expansion would indeed be a port of Antibirth. Original content from the mod that led to this conclusion as well as brand new content in Repentance that were discovered in the demo included:

September[edit | edit source]

September 1st[edit | edit source]

Edmund McMillen officially discloses details of the Repentance expansion pack on Twitter.

  • The Repentance DLC is officially announced to include the Antibirth mod alongside a ton of other new content - Edmund affirms it is "the FINAL (for real this time) DLC for isaac".
  • Edmund will be working with the full team of Antibirth developers (Public Entertainment Networked Interactive Software - also known as P.E.N.I.S), Kilburn, LeatherIceCream, and NotYourSagittarius, on the Repentance DLC, which will also be published by Nicalis.
  • Repentance, as a substantial addition to the game, will cost money.
  • Repentance has no set release date yet - however, remaining Booster Packs are being worked on and expected to release within the next 2 months on console.
  • Repentance will feature a new cutscene(s) & lore in the Isaac story.
  • Repentance's soundtrack will be fully composed by original Isaac: Rebirth music composer Ridiculon (in name of cohesiveness) and not Antibirth soundtrack composer Mudeth, contrary to expectation of a full port of the mod's content - Mudeth adds that he will finish working on his own soundtrack nevertheless, but that it will have to be modded in instead.

Tyrone Rodriguez posted a tweet with "#IsaacRepentanceDev" hashtag of a gif showing off a new item, as well as new visual shaders in the Burning Basement.

September 3rd[edit | edit source]

Tyrone Rodriguez posted a tweet with the "#IsaacRepentanceDev" hashtag showing a new gif.

This gif shows Apollyon in Downpour with Curse of Darkness active. Some noticeable changes include:

  • The return of the Antibirth item Lodestone.
  • A new version of the item tracker, with smaller item icons meaning more items will be shown in the tracker compared to the original Afterbirth version.

September 4th[edit | edit source]

Video footage of _Kilburn playing the Repentance demo on the last day of PAX West was recorded and uploaded to YouTube by a member of the community.

  • A mechanic of the Dross floor is demonstrated - there are rooms with rushing water that will actively affect Isaac's movement
  • New item revealed:
    • Plum Flute
  • New enemies:
    • Previously described green variant of an Attack Fly that moves in a single file along with other green flies.
    • Variant of Mulligan that chases the player and periodically spits out poison gas. And it also fires an Ipecac shot upon death.
    • A round Dip variant in Dross that does short rolls randomly around the room, spawned by Dross Squirts upon death and Clog.
    • A humanoid enemy in Dross that floats and chases Isaac. Surrounded by Attack Flies.
    • Video footage of Clog's attacks and tactics in his battle.
  • As well as more recurring enemies from Antibirth:

Tyrone Rodriguez posted a tweet with the "#IsaacRepentanceDev" hashtag showing a new gif of Lilith in Burning Basement fighting Baby Plum, a boss from the Antibirth mod.

September 6th[edit | edit source]

Tyrone Rodriguez posted a tweet with the "#IsaacRepentanceDev" hashtag showing a new gif.

This gif shows Cain in Downpour firing a total of 2 large tears in a shape of fists. This gif reveals:

September 10th[edit | edit source]

Tyrone Rodriguez posted a tweet with the "#IsaacRepentanceDev" hashtag, this time showing a clear gif of Clog on the boss title screen.

September 19th[edit | edit source]

Edmund McMillen posted a couple of status report tweets where he announced Antibirth content and the new paths are being currently ported and polished, and that new content for the DLC is planned once that task is complete.

September 20th[edit | edit source]

Edmund McMillen made a tweet response, confirming that online co-op won't be added to the game.

October[edit | edit source]

October 8th[edit | edit source]

Edmund McMillen made a tweet about the status of Repentance and his other projects.

October 9th[edit | edit source]

Tyrone Rodriguez posted another tweet with the "#IsaacRepentanceDev" hashtag showing a new gif.

This gif appears to show Eve in Dross, attacking some of the new enemies.

  • This reveals the attacks of the floating enemy that has Attack Flies surrounding it. It appears to cough up small gas and will release a large cloud of poison to push the Attack Flies far away, similar to The Duke of Flies, although the Attack Flies appear to return to floating around it.
  • The gameplay also reveals the Antibirth version of HUD
  • A new rune that can be seen dropping next to Eve at the end of the video.
  • Eve appears to have a new hair sprite for her Whore of Babylon state.
  • Possibly a new sprite for Clicker ClickerClicker Icon.png6 roomsTransforms Isaac into another random character..
  • Finally, the tears fired by Eve appear to be shaped as a round circle instead of a pixel polygon.

November[edit | edit source]

November 8th[edit | edit source]

Edmund McMillen posted another status report tweet.

November 15th[edit | edit source]

Edmund McMillen posted a status report tweet talking about the first expected release date of Repentance,"the first half of next year".

2019[edit | edit source]

January[edit | edit source]

January 11th[edit | edit source]

Edmund McMillen posts an image on twitter that is quickly deleted.

Repentance Edmund Tweet Deleted Boss.png

January 21st[edit | edit source]

In a Twitter Q&A, Edmund McMillen confirmed that The Witness will be in the game, although it'll probably have a name change. Two returning characters from the Binding of Isaac: Antibirth, Bethany and Jacob & Esau, are most likely being added in to the game. Addtionally, Edmund confirmed that true local co-op could be added in as well. Finally, Edmund clarifies while that a couple of redundant items got cut most of the changes to items are just edits.

February[edit | edit source]

February 13th[edit | edit source]

Edmund McMillen confirmed in another AMA that cut content from Antibirth would not be included in Repentance, but that unfinished content may still be finished and included.

February 18th[edit | edit source]

Edmund McMillen posted a tweet once again reconfirming that the DLC would be delayed, while also including a grayscale picture of what appears to be Isaac fighting Singe in The Basement.

Repentance Edmund Tweet Grayscale Boss.png

  • Interestingly, this monster had been teased in a tweet Edmund had posted back in January that he quickly deleted soon after posting.

February 26th[edit | edit source]

Tyrone Rodriguez posted a tweet with the "#Isaacrepentancedev" hashtag, showing a new gif.

This appears to show Magdalene in the Mines floor from Antibirth. Some noticeable changes in this gif include:

February 27th[edit | edit source]

Kilburn posted a screenshot on twitter.

Repentance Kilburn Tweet Item Shadows.png

Though in the format of a meme, this screenshot showcases shadows on item pedestals, a returning feature from Flash.

March[edit | edit source]

March 4th[edit | edit source]

Edmund McMillen responds to a tweet in an AMA about rebalancing in Greedier Mode.

March 16th[edit | edit source]

Edmund McMillen responds to a tweet saying that Repentance will be present at PAX, later clarifying in another tweet that he means the PAX that will be held in August.

March 20th[edit | edit source]

Edmund McMillen tweets that the team is aiming to release Repentance sometime this year, with more teases to be released after Bum-bo. He also states in another tweet that Jacob's Ladder from Antibirth will be renamed in order to avoid naming conflicts with the already existingJacob's Ladder Jacob's LadderJacob's Ladder Icon.pngTears fire sparks of electricity in random directions upon hitting an obstacle or enemy..

April[edit | edit source]

April 13th[edit | edit source]

Edmund McMillen posted a tweet showing a new gif.

This shows Isaac in Scarred Womb. Some noticeable changes in this gif include:

  • Isaac is carrying Mom's Bracelet, an item originating from Antibirth.
  • The tear sprite for Lost Contact Lost ContactLost Contact Icon.pngEvery tear has a small shield which will allow it to block one enemy projectile. appears to be rounder. Meaning the tears are now round circles instead of being pixel polygons as stated before.
  • Champion monsters appear to be recolored in a different manner, similar to Antibirth's champion colorings.
  • The ground sprites for Freds, Para-Bites, and Scarred Para-Bites dynamically change their color to match the floor.
    • This can be seen when one of them pops out of the ground over blood - the color changes to red.
  • The Para-Bites themselves flash when taking damage, not the ground surrounding it.

May[edit | edit source]

May 9th[edit | edit source]

Edmund McMillen posted a status update tweet about Bum-Bo and Repentance's expected release times, and about other games he is developing. This twitter post states that Repentance is expected to be released late Q4 of 2019.

May 27th[edit | edit source]

Edmund McMillen posted a tweet showing a new gif.

This shows Isaac in Flooded Caves in a fight with Big Horn. Some noticeable changes in this gif include:

  • Big Horn's ingame appearance appears to have been completely redesigned.
  • Pits are now properly layered under the water effect instead of on top of it.
  • Big Horn's hands splash the water when they slam down.
  • Big Horn's shadow balls have their own sprites instead of being Little Horn's orbs but resized.
  • The colors of the Flooded Caves have been changed, and the water now has a reflection effect similar to Downpour.
  • Isaac is carrying Sulfur, an item originating from Antibirth.
  • The Troll bombs and Mega Troll Bombs appear to have a new lit fuse animation that originated from Antibirth as well.
  • Marked 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. appears to be able to synergize with Brimstone BrimstoneBrimstone Rebirth 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. and familiars such as Brother Bobby Brother BobbyBrother Bobby Rebirth Icon.pngFollows Isaac around shooting normal tears.. Marked also has a visible line showing the path tears will take.
  • Tear Delay can now have decimal values.
  • The Cube of Meat orbital is traveling faster than before, implying that orbitals will be nerfed by moving faster.

June[edit | edit source]

June 14th[edit | edit source]

Edmund McMillen had a twitter Q&A where he revealed that Edith, the unused Antibirth character, would not be in Repentance [1]. Other details revealed include possible respriting for bosses [2], changes to bosses and enemies [3], and that Antibirth characters will most likely have gameplay changes [4].

July[edit | edit source]

July 3rd[edit | edit source]

Tyrone Rodriguez posted a tweet showing a new gif.

This appears to show Judas in Dank Depths. Some noticeable changes in this gif include:

  • A new Buttlicker variant.
  • Judas is carrying Devil's Crown, a trinket originating from Antibirth. Interestingly, it is also in the item hud. This seems to imply that trinkets, including those that have been gulped or smelted can now also appear in this hud.
  • Judas has Freezer Baby, a familiar originating from Antibirth.
  • There is an unknown item in the item hud that appears to be a ring or a dreamcatcher.
  • The indicator for the angel / devil deal is apparently summarized. This could be a unique visual synergy with Duality DualityDuality Icon.pngWhenever a Devil or Angel Room would spawn after defeating a boss, both rooms spawn. Only one can be entered..
  • The Dank Depths floor appears to have a more detailed backdrop with tar colors.
  • The Book of Belial The Book of BelialThe Book of Belial Icon.png3 roomsUpon use increases damage by 2 for the current room and by a further +50% if the character also has the Blood of the Martyr.
    Removed in Afterbirth Guarantees a Devil Room or Angel Room will be open after beating a boss while holding it, or Added in  Afterbirth increases the chance by 12.5%.
    has a new activated animation, which was previously unused.
  • Lasers have a new animation and become bigger with a higher damage stat; in a similar manner to the original Flash game.

Edmund McMillen also had a twitter Q&A where he revealed that some Four Souls enemies may get added. He also revealed that Delirium and The Void will likely recieve some minor tweaks [5]. The Red Key from Antibirth may be added to Repentance [6].

July 27th[edit | edit source]

Edmund McMillen had a twitter Q&A where he revealed that Repentance would include Hornfel, and a new boss named Singe.

August[edit | edit source]

August 9th[edit | edit source]

Tyrone Rodriguez posted a tweet announcing that Repentance would be at PAX West. He also announced that they will probably be doing a live stream of the demo with Kilburn. In this tweet, he also shows a new gif.

This appears to show Magdalene in The Catacombs fighting The Wretched. Some noticeable changes in this gif include:

  • The Wretched has been given extra details such as blowing up dust after hitting the ground or spewing out dust when spawning Big Spiders/Spiders. The Wretched's legs also more dynamic and no longer have rotation artifacts.
  • Magdalene has a new hair sprite.
  • Little Horn Little HornLittle Horn Icon.pngAdds a chance to fire a piercing tear that instantly kills any enemy that it touches. has a new effect, where the enemy hit by the little horn tear will receive the fear effect before a Big Horn arm will come up and squish the enemy, however, the Little horn tear no longer posseses piercing.
  • There is a new trinket which seems to turn familiars into orbitals while still keeping their effect.
  • There is a strange icon on the minimap, which appears to be a Battery Bum from Four Souls.
  • There is a unknown white crystal active item.
  • Magdalene has a broken heart, implying that Magic Skin will be in the game.

August 17th[edit | edit source]

Edmund McMillen posted a a tweet clarifying that redundant Antibirth items will be changed rather than removed.

August 21st[edit | edit source]

Tyrone Rodriguez posted a tweet with a #IsaacRepentance hashtag showing what could be the box art for Repentance.

August 30th[edit | edit source]

PAX West 2019 begins and Nicalis showcases a new demo for The Binding of Isaac: Repentance. A couple of photos were taken by players there.


  • This is an image from PAX West 2019 showing what appears to be Isaac with the costume appearance of The Intruder item from Antibirth.



  • This is an image featuring True Coop, which is another returning feature from Antibirth.

Tyrone Rodriguez hosted a livestream on Twitch, showing the PAX demo of Repentance. Following features could be seen during the stream:

  • New enemies:
    • Enemies seen in the Dross:
      • A Dross variant of Clotty.
      • A worm-like enemy that slowly crawls towards Isaac and looses its head when taking a certain amount of damage.
        • The body shoots bursts of tears, while the head slides across the room. Both leave a slippery trail of brown creep.
      • Lil Bub has a different appearance when being fought in the Dross floor.
    • Enemies seen in the Mines:
      • A black spider which spawns several Troll Bombs when killed.
  • New item:
    • Dream Catcher
  • Visual changes:
    • Crispys have different faces and their expression changes when they take a certain amount of damage.
    • Death's Touch tears got a visual change which is taken from Antibirth.
    • Brimstone's costume has a new, more detailed appearance.
    • Heart pickups flash red when they pump and display their animation even when they're sold in Shops.
    • The Cyclopias got minor visual changes.
    • Sacrifice rooms have a bloodier appearance.
    • The loading sequences between the floor have been slightly altered.
      • The floor Isaac lies on looks different depending on the floor Isaac is entering.
    • Devil rooms produce a darker and thicker smoke when spawning after clearing a boss fight.
    • Keys have a new animation.
    • New subtle effects have been added to many monsters, such as Monstro creating a cloud every time he jumps and shoots.
    • Mr. Maw no longer has blood in his eyes.
    • Gushers squirting blood is now clearer and bolder.
  • Audio changes:
    • Coins display a different sound when Isaac picks them up.
    • Bonies and their variants display a new sound when dying.
    • The sound heard whenever the player or a monster shoot Brimstone beams got changed.
  • Horfs have a chance to rotate when getting attacked, shooting tears around themselves similar to Antibirth's Sub Horfs.
  • Fires spawned by enemies such as Flaming Fatties is more distinguishable from regular fires.
  • There's an icon underneath the map, indicating if there's a curse on the current floor.
  • Match Book Match BookMatch Book Icon.pngGrants Isaac 1 Black Heart and 3 bombs. Can also give troll bombs. can drop the Match Stick Match StickMatch Stick Icon.pngIncreases the chance of Bombs dropping after clearing a room, and the chance of finding Bombs when opening a Chest. trinket when picked up.
  • Minecarts and Red Buttons from Antibirth reappear.
  • New music tracks were shown, such as the themes of Dross and Mines.
  • Enemy projectiles appear to move faster.
  • The Spider Mod Spider ModSpider Mod Icon.pngDisplays Isaac's tear damage and enemy health bars. Spawns a gray spider familiar that wanders around and inflicts a random status effect on any enemies it comes into contact with. Occasionally spawns a blue spider upon clearing a room.'s health display will change depending on if it is a boss or enemy, with it either being smaller or bigger and being more color coordinated as well.

Additionally, another PAX video has been posted to the internet, featuring:

Finally, Edmund had reposted the art image for the Binding of Isaac: Repentance that Tyrone had posted earlier, implying that it'll indeed be used as the cover.

August 31st[edit | edit source]

At the second day of PAX West, the following information has been collected:

  • A user at PAX posted two tweets featuring:
    • Returning enemies from Antibirth:
      • Ink
      • Gyro
      • Great Gideon, including a list of waves instead of the altered health bar from Antibirth.
    • New enemies:
      • A new Pooter variant which moves erratically through the room and steals charges from Isaac's active item upon touch.
      • A new Downpour variant of Fatty that shoots projectiles and green creep.
    • Gurgles having hunched backs.
  • Another user uploaded a Reddit post, featuring pictures of the already mentioned boss Singe and the variant floor of Mines: Ashpit, taken from another player at PAX.

Tyrone Rodriguez hosted a second stream, showing more features:

  • New enemies:
    • A small monster which looks and behaves similar to Pin, jumping through the room and burying into the ground. It can be seen in the Flooded Caves, however, it is unknown if the enemy can also appear in the Caves or Catacombs.
    • A boss that has a similar appearance to Bumbo (later revealed to be Bumbino) can be seen through the effect of Dream Catcher.
  • Items from Antibirth:
  • Enemies from Antibirth:
  • Bosses from Antibirth:
  • Visual changes:
  • Audio changes:
  • The effect of Dream Catcher got revealed: It predicts which item and boss will appear in the upcoming floor during the loading sequences between floors.
  • The previously mentioned new beggar variant, a Battery Bum, can be seen in the Arcade.
  • Devil Deals have been reworked: if Isaac has one red heart and wants to make a two-heart-deal he needs to additionally pay two soul hearts.
  • Soul heart devil deals are sometimes offered even if you have red hearts to spend.

September[edit | edit source]

September 1st[edit | edit source]

During the third day of PAX West, someone on Reddit uploaded this showing a few more new features:

Additionally, the PAX user who uploaded photos from August 31st and September 1st uploaded a series of videos showing new features of the PAX demo:

  • New enemies:
    • A grey monster with a huge mouth and sharp teeth (found in the Ashpit).
    • A monster which looks similar to a gas cloud (found in the Dross).
    • Bumbino, a new boss who appears in the Flooded Caves.
    • A Dank Depths variant of Hopper.
    • A Dross variant of Dip that shoots a single corn shot at the player upon death.
    • The already mentioned Dross variant of Clotty that shoots four shots that curve around itself.
    • The already mentioned worm-like enemy that appears in Dross was shown to appear with different faces, as well as spawning with its head already separated from its body.
  • Returning items from Antibirth:
  • Returning enemies from Antibirth:
  • Footage of the Min Min boss fight.
  • Gas clouds seem to explode in a chain reaction when a bomb explosion touches it.
  • The already teased False PHD item which grants one black heart and increases the chance to find bad pills / replaces the good pills with bad pills. It can be bought in the Devil Room in exchange of one heart container.
  • Torn Photo Torn PhotoTorn Photo Icon.pngTears + Shot speed up. can now be found in locked chests.
  • Beggars and donation machines now have their own unique icons on the map.
  • Famine's loose head leaves blood drops while floating, just like in the original The Binding of Isaac game.
  • Big Horn's burning bombs now leave a small flame for a few seconds instead of leaving a fire for a long duration of time.
  • Euthanasia EuthanasiaEuthanasia Icon.pngAdds a chance to fire needles. If a needle kills an enemy, it bursts into more needles. has a new collectible sprite.
  • Technology 2 Technology 2Technology 2 Icon.pngDecreases damage and replaces right eye tears with a unlimited range, piercing laser which fires continuously. doesn't decrease the damage stat anymore.

Tyrone also hosted two short periscope streams at PAX, which revealed more features:

September 2nd[edit | edit source]

Tyrone hosted a 3rd periscope stream showed a new Boom Fly variant, which can be seen in the Ashpit, as well as a new angel room item, Genesis.

A Discord user posts this image showcasing a new unknown enemy in Ashpit.

September 4th[edit | edit source]

The same Discord user posts two more videos, showcasing both Greedier Mode and a bit more of the Ashpit. In the videos, a couple new changes and features are revealed.

  • Returning enemies from Antibirth:
    • Hardy
    • Big Bony can be seen in Ashpit with a different attack of firing, which is a bouncing bone that remains on screen for a long time.
  • Azazel's Brimstone now appears to have knockback.
  • The unknown enemy revealed on September 2nd is shown which moves in an erratic pattern towards Isaac by curving left and right in short bursts.

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