Portal joins forces with Half-Life in this short film called When Gordon Met Chell.
Dota 2 - Cinematic Trailer
Valve have released an action packed cinematic trailer for their new game, Dota 2.
Meet the Medic - Behind the Scenes
See outtakes and learn about Valve's creative process in this behind the scenes article for their Meet the Medic short.
Portal 2 - Boots
The science of the boots used in Portal 2 is explained in this latest video from Valve.