Curse of the Catacomb! is a curse in David Pack, a mod for The Binding of Isaac.

Clearing a room will create red rooms at every valid position.

The boss door is locked until total rooms amount - 4 rooms are cleared or at least visited.

total rooms amount includes red rooms, all kinds of special rooms and secret rooms on the current floor.

This curse has a 15% chance to replace Curse of the Labyrinth!

• Download David Pack from the Steam Workshop.