Monster Manual
ItemRebirthUnlocked
activeGame ID 123★★★★
How do you unlock Monster Manual?
Verified starting unlockSource data confirms that no unlock is required.
[Before Repentance] Spawns a familiar from a specific selection for the current room. / [Repentance] Spawns a familiar from a specific selection for the current floor.
Available from the start
No unlock needed — this is available in every new save file.
What unlocking Monster Manual leads to
Nothing depends on this yet.
Source: bindingofisaacrebirth.wiki.gg
Imported 2026-09-13