Book of Revelations
ItemRebirthLocked
activeGame ID 78★★★★
How do you unlock Book of Revelations?
In The Binding of Isaac, Book of Revelations is unlocked by unlocking The Book of Revelations.
Structured pathSource-backed requirements are mapped into trackable steps.
Increases the chance of a Devil Room / Angel Room appearing while held. Upon use, gives one Soul Heart, and replaces the boss of the current floor with a Harbinger if possible.
How to unlock: Defeat a Harbinger
What unlocking Book of Revelations leads to
Nothing depends on this yet.
Source: bindingofisaacrebirth.wiki.gg
Imported 2026-09-13