Taken from the ASG description: Yggdrasil is an abstract strategy game that takes 2-4 players to the world of Scandinavian mythology and its many capricious gods. Thor, Odin, Frigg and Loki are reborn to impose their will within the nine worlds. Yggdrasil, the tree of Odin, is the force that keeps this fragile system functioning. The players must manipulate the runic stones in order to gain the most points and thus win the game.