Trine is a cross-platform indie game. You start out as a Thief, hunting for treasure. You then play as a Wizard, who is attempting to cast the ever elusive fireball spell to impress the ladies. Then there's the Knight, who wishes to be a great warrior. All three of you end up magically attached to an ancient object, later found out as the Trine. You go through the game's world to vanquish the land of evil and figure out how to free yourselves of the magic of the Trine.