Cursed Doorknob is an unlockable trinket in The Bimbing of AIsaac: Reedged, a mod for The Binding of Isaac.

Entering a room will teleport Isaac to a random door of the room.

If the room is entered for the first time, the door Isaac got teleported to will be unlocked (Even if it normally requires a key or a bomb).

When entering a new room, 10% chance to spawn a red room door (it will be chosen as the door Isaac gets teleported to).

Complete [AIsaac]Doorphobia challenge.

• Download The Bimbing of AIsaac: Reedged from the Steam Workshop.