Uploaded December 2016 | Updated September 2026, 22 hours ago

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Go to antibirth.com for more info and to download the mod!



Antibirth is a massive fan expansion for The Binding of Isaac: Rebirth that uses executable modding to add tons of brand new features to the game.
- A completely revisited local coop mode: play as 2 characters simultaneously!
- 90+ new items
- 18+ new trinkets
- 2 new characters with unique playstyles
- A new secret chapter, for those seeking a challenge
- 80+ new enemies
- 16 new bosses
- A nearly complete, brand new original soundtrack
- 40+ new achievements