Munchkin

Munchkin captures the essence of the dungeon experience . . . with none of that stupid roleplaying stuff. You and your friends compete to kill monsters and grab magic items. And what magic items! Don the Horny Helmet and the Boots of Butt-Kicking. Wield the Staff of Napalm . . . or maybe the Chainsaw of Bloody Dismemberment. Start by slaughtering the Potted Plant and the Drooling Slime, and work your way up to the Plutonium Dragon . . .

Fast and silly, Munchkin Card Games can reduce any roleplaying group to hysteria. And, while they're laughing, you can steal their stuff.