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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 them on Steam

Valve has just issued a massive Source SDK update giving modders access to the Team Fortress 2 game code, opening the door for them to build all-new games based on the classic FPS and publish those ...
GosuGamers

Valve releases full Team Fortress 2 source code, allows modders to run wild

Valve has officially released the full client and server code for its seminal first-person shooter Team Fortress 2 online. Fans of the game are encouraged to “change, extend or rewrite” Team Fortress ...
PCGamesN

A decade in the making, long-awaited mod Team Fortress 2 Classic has a new name and a release date following Valve clash

Team Fortress 2 stands alongside Half-Life and Portal as one of the foundational pillars of Steam itself. But perhaps it could have looked rather different. Formerly known as Team Fortress 2 Classic, ...
The Escapist

Team Fortress 2 Classic fan throwback mod cuts open beta over Steam bureaucracy

Team Fortress 2 Classic, the fan mod aiming to recreate the 2008 to 2009 period of the game’s nearly 20-year lifespan, has had to scrap its upcoming open beta. The reason for this comes from updated ...
GamesRadar+

Team Fortress 2 Classic mod delayed to January, and also isn't actually called Team Fortress 2 Classic anymore as Valve apparently asked for a name change

Team Fortress 2 Classic – a mod that sets out to offer a new TF2 experience but with the "original inspirations and tone" of Valve's FPS original – has been pushed back to January 2026, as the devs ...
TechSpot

Valve releases full Team Fortress 2 SDK, modders gain control over the game's code

Why it matters: Team Fortress 2 launched 17 years ago but still receives significant updates, and its player base is as healthy as ever. The latest patch fully unlocks the game's SDK, releasing ...