Half-Life: Raise the Bar is a fan-made short film inspired by the Half-Life franchise.
Valve have announced they will release their Source 2 engine for free to content developers.
Valve have created Expiration Date, a 15 minute animated short featuring all the Team Fortress characters.
Team Fortress 2 - Mann vs. Machine
A robot faction is introduced into the Team Fortress 2 equation, via this amazing new trailer by Valve.