This is a 30-card EXPANSION to Munchkin. Any Munchkin base game is required to play. Flavor up your Munchkin games with these 30 new monster, Treasure, Class, and Race enhancers! For use with Munchkin, Munchkins & Mazes, Munchkin Tails, Munchkin Oz, or any set that uses the original Munchkin card backs!