Spiderbaby
ItemRebirthUnlocked
passiveGame ID 211★★★★
How do you unlock Spiderbaby?
Verified starting unlockSource data confirms that no unlock is required.
Spawns [Before Repentance] 1-2 / [Repentance] 3-5 Blue Spiders when Isaac takes damage.
Available from the start
No unlock needed — this is available in every new save file.
What unlocking Spiderbaby leads to
Nothing depends on this yet.
Source: bindingofisaacrebirth.wiki.gg
Imported 2026-09-13