Go down in the dungeon. Kill everything you meet. Backstab your friends and steal their stuff. Grab the treasure and run.
Munchkin is a satirical card game based on the clichés and oddities of Dungeons and Dragons and other role-playing games. Each player starts at level 1 and the winner is the first player to reach level 10. Players can acquire familiar D&D style character classes during the game which determine to some extent the cards they can play.