Install to:

C:\Program Files (x86)\Steam\steamapps\common\The Binding of Isaac Rebirth\resources\rooms

AFTERBIRTH CAPATIBLE ONLY!!!

This mod makes the game have improved treasure rooms with 2 random Consumables (Any hearts, keys, bombs, etc.), 2 Random treasure room items, and increases the games difficulty, and adds a boss to the treasure room to compensate for the added items.