This Team Fortress fan animation created with Source Filmmaker is a cool tribute to the ZombiU CG trailer.
Portal 2 - Perpetual Testing Initiative
Valve are introducing the Perpetual Testing Initiative for Portal 2 with this new amusing trailer.
Portal 2 - Turret Trailer
Valve spills the beans on the technical aspects of the turrets encountered in Portal 2.
Portal 2 - TV Spot
Valve has released a fun tv spot for thier upcoming game, Portal 2.