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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.

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Valve Technology Source and the Source SDK 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 Why choose the Source Engine for your MOD? Read "Making a MOD" - building a team through the shipping process. Already using the SDK? Check the FAQ for some helpful answers. New to Source coding? Get started with "My First Entity". Read (or add!) a tutorial on Source development, or any part of the content creation process.

Latest News Valve Developer Community launched Thurs June 30, 2005 The quality and volume of community involvement in the launch of the Valve Developer Community site has surpassed all expectations. There are nealy a thousand users now, and the number of useful articles has nearly doubled in the days since the site's availablity. Counter-Strike bot navigation explained Thurs June 30, 2005 Mike Booth, who created the Counter-Strike bot, has contributed this comprehensive article for making bot navigation work in Counter-Strike maps. New article contributions Thurs June 30, 2005 We're excited by a number of useful new pages that the community has contributed. Head over to the Source Engine documentation area to check them out.