Mom's Key
ItemRebirthUnlocked
passiveGame ID 199★★★★
How do you unlock Mom's Key?
Verified starting unlockSource data confirms that no unlock is required.
Adds 2 keys. Chests will drop additional pickups.
Available from the start
No unlock needed — this is available in every new save file.
What unlocking Mom's Key leads to
Nothing depends on this yet.
Source: bindingofisaacrebirth.wiki.gg
Imported 2026-09-13