Mysterious Paper
AchievementRebirthUnlock unknown
Achievement details
- Achievement number
- 123
- Description
- Unlocked a new item.
- Requirement
- Defeat ??? as Eden
How do you unlock Mysterious Paper?
In The Binding of Isaac, Mysterious Paper is unlocked by earning the ??? completion mark as Eden (Character).
Structured pathSource-backed requirements are mapped into trackable steps.
Unlocked a new item.
How to unlock: Complete Chapter 4
What unlocking Mysterious Paper leads to
Source: bindingofisaacrebirth.wiki.gg
Imported 2026-09-13