Chaos
ItemAfterbirthUnlocked
passiveGame ID 402★★★★
How do you unlock Chaos?
Verified starting unlockSource data confirms that no unlock is required.
Drops 1-6 random pickups on the floor. Causes items to be chosen from random item pools.
Available from the start
No unlock needed — this is available in every new save file.
What unlocking Chaos leads to
Nothing depends on this yet.
Source: bindingofisaacrebirth.wiki.gg
Imported 2026-09-13