The Binding of Isaac: Rebirth
637 Achievements
800-800h
Steam
Bone Baby
Unlocked a new co-player baby. Details for this achievement will be revealed once unlocked
10.3%
How to unlock the Bone Baby achievement in The Binding of Isaac: Rebirth - Definitive Guide
squesada27
TrueSteamAchievements
TrueSteamAchievements
Earn all Hard Mode Completion Marks as The Forgotten to unlock it.
