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Welcome to the Valve Developer Community. Whether you're building a "Triple-A" commercial project or a MOD for Half-Life® 2, you'll want to sign up as a Valve developer today.

http://developer.valvesoftware.com/w/images/4/4d/Doublearrow.gif sign up to become part of the community -- it's free!

Valve Technology Source and the Source SDK http://developer.valvesoftware.com/w/images/b/bd/DoublearrowRed.gif Enter the Source Engine Documentation WIKI Our knowledgebase of technical information about using the engine and all of the related tools is now posted on a community-driven web site called a WIKI. Sign up as a developer to contribute or to ask a question. For MOD Teams http://developer.valvesoftware.com/w/images/4/4d/Doublearrow.gif Why choose the Source Engine for your MOD? http://developer.valvesoftware.com/w/images/4/4d/Doublearrow.gif Read "Making a MOD" - building a team through the shipping process. http://developer.valvesoftware.com/w/images/4/4d/Doublearrow.gif Already using the SDK? Check the FAQ for some helpful answers. http://developer.valvesoftware.com/w/images/4/4d/Doublearrow.gif New to Source coding? Get started with "My First Entity". http://developer.valvesoftware.com/w/images/4/4d/Doublearrow.gif Read (or add!) a tutorial on Source development, or any part of the content creation process.

Latest News Source SDK Update Released! Tues January 17th, 2006 A major update to the Source SDK has been released on Steam. Included in this update are major features and fixes for the tools in the Source SDK. More information can be found be reading the Source SDK Release Notes. Thank you to all our SDK Beta testers for helping with this release. Source SDK Beta Update Mon January 16th, 2006 An update to the Source SDK Beta has been released on Steam with a number of bug fixes. See this page for the latest information. Source Engine Update Mon January 9th, 2006 An update released today includes fixes for the Source SDK, including issues with humanoid models and overly bright cubemap rendering. Source SDK Beta Update Thurs January 5th, 2006 An update to the Source SDK Beta has been released on Steam. This update includes a number of fixes for issues reported by our industrious testers on the VDC. See this page for the latest information. Source SDK Status Fri December 30, 2005 We've released a small Source SDK update to address the issue with the 3D view rendering in the Hammer editor. For more information about the update, see this Source SDK forum post.