Corrupt Trade Room is a room in Glacier's Laboratory, a mod for The Binding of Isaac.

A special Red Room that is completely invisible on the map until discovered, its door sometimes has spikes on the door that hurt Isaac for half a heart (or a full heart starting from the Womb) when touching or going through it.

The Corrupt Trade Room may only spawn if Isaac has any Corrupted Pickup. Only one Corrupt Trade Room may spawn on a floor. One does not spawn in the Blue Womb and Home.

Corrupt Trade Rooms are found next to only one adjacent room which must be a normal room, the room must have only one door that leads to oher normal rooms, and their entrance will never have an enemy spawn, rock, gap, or other grid entity in the way.

Contains a Corrupt Trader and sells 4 pickups and items in exchange for Corrupted Pickups, and sometimes has obstacles that pile on the wall adjacent to Ultra Secret Room.

Unlike other special rooms, the item pool of Corrupt Trade Room is not fixed, but depends on the room type that Corrupt Trade Room replaces.

The Corrupt Trade Room does not have an associated item pool.

• Download Glacier's Laboratory from the Steam Workshop.