Munchkin 6.5 - Terrible Tombs You didn't think Munchkin 6 - Demented Dungeons was the end of the adventure, did you We've gone back to our roots with 20 more Dungeons to explore and 16 new Portals to send you there. Munchkin 6.5 - Terrible Tombs may be used on its own or combined with Demented Dungeons (or any other expansion with Dungeon cards) for a truly insane adventure. 20 double-sized cards, 16 standard-sized cards. Game Design by Steve Jackson, Illustrated by John Kovalic.