The Book of Sin
AchievementRebirthUnlock unknown
Achievement details
- Achievement number
- 22
- Description
- Unlocked a new item.
- Requirement
- Defeat all 7 Deadly Sins
How do you unlock The Book of Sin?
Source text onlyThe instruction is sourced, but its steps are not mapped yet.
Unlocked a new item.
Verified requirement
Defeat all 7 Deadly Sins
A structured unlock path has not been mapped for this achievement.
What unlocking The Book of Sin leads to
Source: bindingofisaacrebirth.wiki.gg
Imported 2026-09-13