If you really, really want to besiege dungeons three-at-a-time, then this competition is for you. In celebration of there first being Dungeon Siege, and then two of it, and now three of it, the lovely chaps at Square and Obsidian have provides three sets of all three games for you guys to win. That’s right: Dungeon Siege One, Two, And Three (Count ’em!) for you to play. They’re Steam codes, too, so if you already have one of the games you could always pass the code along to a chum. That sounds like a decent prize to me, but what to do to win it?