Valve has decided to make its Source SDK free for all users, rather than require at least one Source title be purchased to obtain access to the engine. Valve has confirmed that its Source software ...

Other additions include OS X and Linux support, updates now hosted on github Steam just released the Source SDK for 2013, adding support to Macintosh OS X and Linux, as well as support for Oculus Rift ...

In a surprising but completely welcome bid to further earn our love, Valve has decided to release their full SDK for free. What with TF2 becoming free for everyone for ever and all that, Valve's Robin ...

Following on with Valve’s decision to make their Team Fortress 2 game completely free to all, Valve has this week announced that they are now releasing a Source SDK which will be free to all.

Valve sends along an email announcing that the Source SDK Tools are now available through Steam. Here's what's included A precursor to the release of the full SDK, which will be released shortly after ...

Attention current and would-be mode developers: Valve's free Source SDK has been updated with a swag of new features. The headline change to this year's version of the Source SDK is the addition of ...

Team Fortress 2 remains a very popular multiplayer game, and that's in no small part to the many updates that Valve has released for the PC version of the game, overhauling many of the existing ...