It's hard to top Valve when it comes to its catalog of timeless, competitive multiplayer games. Dota 2 and Counter-Strike are of course the poster children, but Team Fortress 2 is still going ...

The Team Fortress 2 modding scene is about to get a little easier, it seems, as Valve has apparently struck a deal with Microsoft to waive the $50,000 fee for the Havok physics engine for future mods ...