Isaac's Fork
TrinketRebirthUnlocked
How do you unlock Isaac's Fork?
Verified starting unlockSource data confirms that no unlock is required.
Isaac has a chance to heal for a Half Red Heart upon clearing a room.
Available from the start
No unlock needed — this is available in every new save file.
What unlocking Isaac's Fork leads to
Nothing depends on this yet.
Source: bindingofisaacrebirth.wiki.gg
Imported 2026-09-13