Bone Heart
AchievementAfterbirth+Unlock unknown
Achievement details
- Achievement number
- 391
- Description
- Unlocked a new item.
- Requirement
- It's complicated
How do you unlock Bone Heart?
Source text onlyThe instruction is sourced, but its steps are not mapped yet.
Unlocked a new item.
Verified requirement
It's complicated
A structured unlock path has not been mapped for this achievement.
What unlocking Bone Heart leads to
Source: bindingofisaacrebirth.wiki.gg
Imported 2026-09-13