Spider Mod
ItemAfterbirthUnlocked
familiarGame ID 403★★★★
How do you unlock Spider Mod?
Verified starting unlockSource data confirms that no unlock is required.
Displays Isaac's tear damage and enemy health bars. Spawns a familiar that wanders around and inflicts random status effects on enemies it touches. Can spawn a Lil' Battery (Micro Battery) / Blue spider upon clearing a room.
Available from the start
No unlock needed — this is available in every new save file.
What unlocking Spider Mod leads to
Nothing depends on this yet.
Source: bindingofisaacrebirth.wiki.gg
Imported 2026-09-13