New dungeons are waiting for you! You didn't think the adventure with Munchkin 6 Crazy Dungeons was over, did you? We've now returned to our roots with 20 new explorable dungeons and 16 new portals! Munchkin 6.5 Grim Tombs can be used either alone or with Mad Dungeons (or another expansion with dungeon cards). The latter guarantees a really crazy adventure! This is an expansion to Munchkin, not a base game. To play Munchkin 6.5 Grim Tombs, you need the Munchkin base game.