Joker
CardRebirthUnlocked
How do you unlock Joker?
Verified starting unlockSource data confirms that no unlock is required.
Teleports Isaac to the Devil Room or Angel Room.
Available from the start
No unlock needed — this is available in every new save file.
What unlocking Joker leads to
Nothing depends on this yet.
Source: bindingofisaacrebirth.wiki.gg
Imported 2026-09-13