Contract from Below is a passive item.
Effects
- Doubles any Pickups and Chests earned for clearing a room.
- Decreases the chance for room drops by roughly 33%.
Neither effect applies to coins dropped in Greed Mode.
Neither effect applies to Synergies
- Multiple copies of Contract from Below: Each additional Contract increases the number of room drops by one and lowers the chance of getting nothing.
- Guppy's Tail: Higher chance of double chests upon clearing a room.
- Error: The given collectible ("Humbling Bundle") does not exist.: Produces quadruple results when bombs, keys, or pennies drop after clearing a room.
- Mitre: Higher chance to find double soul hearts upon clearing a room.
In-game Footage
Seeds
PC GWVY QDWF (Curse room adjacent to spawn)
PC PS4 3VTZ 8BP2 (Curse room adjacent to spawn)
PC R7ZW 64SZ (Curse room adjacent to spawn)
Switch T8GC DE46 (Second floor devil room)
Trivia
- A reference to the card of the same name from Magic: the Gathering, a collectible card game Edmund McMillen played since his childhood.
- Isaac's name is written at the bottom of the contract, implying that he signed the contract.
 The Binding of Isaac: Rebirth
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