The Binding of Isaac: Rebirth
637 Achievements
800-800h
Steam
Mysterious Paper
Unlocked a new item. Details for this achievement will be revealed once unlocked
25.7%
How to unlock the Mysterious Paper achievement in The Binding of Isaac: Rebirth - Definitive Guide
Worm
TrueSteamAchievements
TrueSteamAchievements
This will pop after you defeat "???" in The Chest level with Eden.
