This is an EXPANSION to Munchkin Cthulhu. It contains 16 Door cards and 20 Dungeon cards and rules in a tuckbox. Subterranean Secrets! The hunt for forbidden knowledge goes underground! Explore the Midden of the Mi-Go! Dig yourself out of the Dunwich Ditch! Brave the blue light of K'n-Yan! Maybe all at once . . . Munchkin Cthulhu has already driven you mad, and now it's even madder! The 16 Portals and 20 Dungeons in Crazed Caverns open up whole new dimensions to explore . . . and we all know what a great idea that can be, right? What could go wrong? This is an expansion for Munchkin Cthulhu. It is not a stand-alone game. Did you enjoy your adventure in the Crazed Caverns? Good, because we've got more. By popular munchkin demand, we've now released more Dungeon sets: * Munchkin 6 – Double Dungeons * Munchkin 6.5 – Terrible Tombs * Munchkin Zombies 3 – Hideous Hideouts Look for them at your local hobby shop. And be brave!