This Team Fortress fan animation created with Source Filmmaker is a cool tribute to the ZombiU CG trailer.
Team Fortress 2 - Meet the Medic
Team Fortress 2 is now free to play, and along with that great news, Valve have released a new cinematic, Meet the Medic.
Portal 2 - Valentine Trailer
Valve have shown us they're true romantics, with this special trailer for Portal 2.