Valve adds "all the Team Fortress 2 client and server game code" to its Source mod tools, letting modders "build completely new games based on TF2" and publish the…

Valve has just issued a massive Source SDK update giving modders access to the Team Fortress 2 game code, opening the door ...
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As Team Fortress 2 and Portal fan games are hit with copyright requests, acclaimed sandbox game dev behind Garry's Mod says the decision is "hardly surprising"

FPS Games "Valve does not get anywhere near enough criticism about" gambling in its video games, says DayZ creator after $6 billion Counter-Strike 2 market crashes Action Games Dev says Steam bug ...
PCGamesN

Garry's Mod spiritual sequel Sandbox is now open to all

The internet is indebted to Garry's Mod. Without it, we wouldn't have Prop Hunt, Trouble in Terrorist Town, and the countless machinima that flooded YouTube in the late '00s. Garry's Mod is the ...