Lil Guardian Pyro is the winner for the best overall prize at this year's Valve Saxxy annual animated film competition.
Valve have created Expiration Date, a 15 minute animated short featuring all the Team Fortress characters.
Counter-Strike: Global Offensive - Trailer
Valve show a grittier more realistic use for Source Filmmaker with a trailer for Counter-Strike: Global Offensive.
The first minutes of the original Half-Life are brought to life in this live action short, Half-Life: Origins.