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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 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. Source SDK Beta Underway Wed November 22nd, 2005 We've begun testing of the next version of the Source SDK. The initial release includes updates to all of the tools. The highlights are support for HDR throughout the tools and support for Day of Defeat: Source. For more information, see this page. Commentary System Documentation Wed November 9th, 2005 VDC contributor AndrewNeo got the article started on how to author content for the Commentary System that was first demonstrated in Lost Coast. Since then, Valve's Robin Walker has made some useful additions.