Valve loves itself so much that it puts its own games into other studios' work on Steam -- we don't want to call it incestuous, but, well. It's kind of incestuous. Dungeon Defenders
is the latest
game to have a healthy Valve infusion, with pre-orders getting The Aperture Science Handheld Portal Device for the Huntress class and four Team Fortress 2
familiars, Heavy, Medic, Engineer and Pyro. Check out how these goodies work above and pre-order Dungeon Defenders
, if you're into that sort of thing.