Booster Packs

Booster Packs are recurring content updates for The Binding of Isaac: Afterbirth †. Booster Packs will contain high quality, popular, and balanced community developed mods as updates in the game to continue to add features, now that development of content for Isaac is officially completed.

Booster Pack #1

The first Booster Pack was released on March 23, 2017 on PC, and contains 9 new items, 3 new trinkets, and 3 new special cards, along with some new features.

Active Items

Name	ID	Icon	Quote	Description	Recharge
Black Hole	512		Nothing can escape	Throws a black hole on the ground which sucks in and damages enemies.	4
Mystery Gift	515		Wrapped up nice for you!	Upon use, spawns a random item from the current room's item pool, with a chance to spawn A Lump of Coal or The Poop instead.	One time use
Sprinkler	516		Sprinkles.	Upon use, spawns a sprinkler that rotates and fires tears.	4

Passive Items

Name	ID	Icon	Quote	Description
Angry Fly	511		He's violent	Spawns a fly familiar that orbits around a random enemy and deals 2 damage per tick to enemies it comes in contact with.
Bozo	513		Party time!	Increases damage by a flat 0.1 and grants a soul heart. Enemies can randomly become briefly charmed or feared. Taking damage has a chance to spawn a rainbow poop.
Broken Modem	514		LAG!	Enemies, enemy shots, tears, and pickups will briefly freeze in place at random intervals.
Buddy in a Box	518		What could it be?!	Grants a familiar with a random tear effect. The familiar is randomized at the start of each floor.
Fast Bombs	517		Faster bomb drops!	Grants 7 bombs and allows bombs to be placed rapidly.
Lil Delirium	519		He's delirious	Grants a familiar that transforms into another random familiar every 10 seconds.

Trinkets

Name	ID	Icon	Quote	Description
Hairpin	120		Poke that power outlet! Bosses charge you	Fully recharges Isaac's active item upon entering a boss fight.
Wooden Cross	121		My faith protects me	Grants a Holy Mantle shield upon entering a new floor, which protects against one hit of damage.
Butter!	122		Can't hold it!	Using an active item will drop it onto a pedestal on the ground.

Cards

Name	ID	Icon	Message	Effect
Huge Growth	52		Become immense!	Makes Isaac large for the current room, increasing his range and damage.
Ancient Recall	53		Draw 3 cards	Spawns 3 random cards.
Era Walk	54		Savor the moment	For the current room, enemies are slowed, Isaac's speed is increased, and his shot speed is decreased.

Other Features

• Dice Rooms now have a small icon in the corner of the room that denotes what the effect of the room is, based on this Steam Workshop mod.
• Added a new option in the menu to display charge bars, based on this Steam workshop mod.
• Added 5 new Eden hairstyles, based on this Steam workshop mod.

Booster Pack #2

The second Booster Pack was released on May 12, 2017 on PC, and contains 6 new items, 1 new trinket, and miscellaneous changes.

Active Items

Name	ID	Icon	Quote	Description	Recharge
Coupon	521		Allow 6 weeks for delivery	Upon use, makes a random item from a shop, devil deal, or black market free.	6
Telekinesis	522		The power of mind!	Upon use, for the next two seconds, any enemy shots that come near Isaac are held in place. After the charge is depleted, they are fired back as tears.	3 seconds
Moving Box	523		Pack and unpack	If 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.	4

Passive Items

Name	ID	Icon	Quote	Description
Jumper Cables	520		Bloody Recharge!	Grants an active item charge every 15 enemies killed.
Leprosy	525		You're tearing me apart!	Upon taking damage, grants a body part as an orbital, which blocks enemy shots and deals 7 damage per tick to enemies it comes in contact with. The orbitals will be destroyed if they take enough damage from enemies or enemy shots.
Technology Zero	524		Static tears!	Connects Isaac's tears with electricity that can damage enemies.

Trinkets

Name	ID	Icon	Quote	Description
Filigree Feather	123		Angelic Spoils!	Angels drop items instead of key pieces when defeated.

Other Features

• Angel Rooms have more beneficial layouts.
• Mods no longer disable achievements after beating Mom's Heart. This includes use of the Console.
• Active items charge during Challenge Room waves.
• Multiple items that affect the appearance of bombs now stack visually, based on this Steam workshop mod.
• Jar of Flies now changes appearance depending on how many flies are in the jar, based on this Steam workshop mod.
• Added Mom's Dressing Table, which changes Isaac's appearance to only reflect a few of his items, based on this Steam workshop mod.
• Added the Stompy transformation.

Booster Pack #3

The third Booster Pack was released on June 30, 2017 on PC, and contains 4 new items, and 1 trinket.

Active Items

Name	ID	Icon	Quote	Description	Recharge
Mr. ME!	527		Caaan Do!	Summons a controllable ghost that can perform various tasks depending on what it targets.	4

Passive Items

Name	ID	Icon	Quote	Description
7 Seals	526		Lil Harbingers!	Grants a random Harbinger familiar that changes every 10 seconds.
Angelic Prism	528		Eclipsed by the moon	Grants a prism orbital with a large orbital radius. Tears that pass through the prism split into four multi-colored tears.
Pop!	529		Eyeball tears!	Replaces 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.

Trinkets

Name	ID	Icon	Quote	Description
Door Stop	124		Hold the door!	The last door Isaac went through stays open, allowing him to leave the room even if enemies are in it.

Other Features

• Added new Eden hairstyles, based on this Steam workshop mod.