Cthulhu Dice lets you drive your rivals mad - very, very quickly. Players take turns destroy their opponents' sanity! Better yet, steal it. But watch out for Cthulhu - when he comes up, he takes sanity from everyone! Lose all your marbles and you're mad. The last sane cultist wins . . . unless everyone goes mad together. Then Cthulhu wins! Official Game From Steve Jackson Games. Beginners welcome. Dice provided.