Booster Packs are recurring content updates for The Binding of Isaac: Afterbirth †. Booster Packs contain high-quality, popular, and balanced community-developed mods as updates in the game to continue to add features.
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.[1]
Active Items
Passive Items
Trinkets
Cards
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.[2]
Active Items
Passive Items
Trinkets
Other Features
- Angel Rooms have more beneficial layouts, based on this Steam workshop mod.
- Mods no longer disable achievements after beating Mom's Heart once. This includes use of the Debug Console.
- Active items now 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
Passive Items
Trinkets
Other Features
- Added new Eden hairstyles, based on this Steam workshop mod.
Booster Pack #4
The fourth Booster Pack was released on October 10, 2017 and contains 5 new items, 1 new trinket, and 6 new enemies.[3]
Passive Items
Trinkets
Monsters
Other Features
- Most items from previous Booster Packs have new and improved graphics.
Broken Modem collectible sprite was changed.
Technology Zero collectible and costume sprites were changed.- Angry Fly collectible and familiar sprites were changed.
- Sprinkler collectible and entity sprites were changed.
- 7 Seals collectible and familiar sprites were changed. Familiar sprites were based on this Steam Workshop mod by Quartz.
- Pop! collectible sprite was changed.
- Hairpin trinket sprite was changed.
- Butter! trinket sprite was changed.
- Door Stop trinket sprite was changed.
- Added 400 new rooms to better integrate the Afterbirth+ enemies (including Booster Pack #4 enemies) into the game.
Booster Pack #5
The fifth and last Booster Pack was released on April 30, 2018 and contains 1 new character, 18 new items, 3 new trinkets, 6 new enemies, and a new boss.[4]
Characters
The Forgotten is a new character added in the Booster pack.
Active Items
Passive Items
Trinkets
Monsters
Bosses
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| The Matriarch |
Other features
- Bone hearts, a new heart type.
- Golden bombs now have a pickup sound effect.
- Black hearts now have a pickup sound effect.
- White Poop, a new poop type.
- Modding tools improvements.[5]
- Gaping Maws have a chance to become Broken Gaping Maws.[6]
- Changes to the schwag bonus in Daily Challenges.[7]
- Changes to Greed Mode Angel rooms.
- Added 817 new rooms.
- New charge bar graphics.
- New and improved graphics based on this Steam Workshop mod.
- New and improved graphics for burrowing monsters based on this Steam Workshop mod.
- Added the unlocks from the Switch version of the game.
- Added 64 new achievements, including 36 from the Switch version.
- New Co-op Babies.
Gallery
Concept Art For Cells, Fused Cells, and Tissues, scrapped Booster Pack enemies by LeatherIceCream
Trivia
- Booster pack 3 is the only booster pack to not get its own blog post.
- The developers of Antibirth helped create booster packs 4 and 5.
- Most booster pack items have to be unlocked.
- Many of the added Co-op Babies from Booster Pack 5 are references to popular mods that were never added in the Booster Packs.
- The use of the term Booster Pack to refer to content updates of the game now that official development of the game is over is similar to its original usage in reference to getting card packs to add to one's card collection.
References
- ↑ Booster Tutor!
- ↑ Booster Rooster #2!
- ↑ Booster Pack 4 You!
- ↑ The Forgotten Booster!
- ↑ "They are being worked on"
- ↑ "i believe more broken maw rooms were added and possibly the chance for normal ones to become broken ones"
- ↑ "Should the "swag bonus" in Isaac dailys be removed in the next booster?""can someone link me again to that list of stuff to improve on daily runs that someone wrote"
Template:Nav booster packs
 The Binding of Isaac: Rebirth
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