And while there have been several mods since Team Fortress 2 was launched in 2007, Valve has now released the game's entire source code, which may open the door to a lot of fan creations.

Valve told ZDNet today that it's safe to play games like Counter-Strike: Global Offensive and Team Fortress 2 even after their source code leaked online today on 4chan and torrent sites.

Valve is handing Team Fortress 2 modders the keys to the kingdom, as long as they don't try to make any money from it. The company has added the client and server game code to the Source software ...

Surprise! Valve's just released a massive update to the Source SDK, adding "all" the Team Fortress 2 client and server game code. Valve said the update lets players build entirely new games from ...