An extremely enjoyable puzzle game. The object is to takeover the gameboard (which can be edited by the user and saved) with marbles (gems?) of your own color. It includes a single player vs. computer option (with three skill levels) and also a two player option. Definitely fun to play, as it's got a really nice looking interface, and, on the 'easy' setting, even I can sometimes win! :) (Note: You can also play Hexxagon online!)