For people and teams developing mods and games with Valve's Source engine.
Just follow through these two videos, and you will have a mod that you are able to add custom code into. Since The new 2013 version of the SDK just recently was released, I decided I wanted to update...Jun 29, 2013 Tutorial
After more than 50 releases, the Blender SMD Tools have left beta. Import and export all types of SMD, compile QCs automatically and import DMX with 100% open source software!Jun 24, 2011 News
Gabe Newell: "We’re spending more time on tools development now than anything else."Apr 8, 2011 Source News