Welcome to the Valve Developer Community. Whether you're building a triple-A commercial project or a modification for Half-Life 2, you'll want to sign up as a Valve developer today. It's free to join and is open to anyone working with the Source engine and its software development kit.
Sign up to become part of the community!
Our knowledge base of technical information about using the engine and all of the related tools is posted on a community-driven web site called a wiki. Sign up as a developer to contribute.
Looking for Source 2 documentation in general? Visit the page by clicking on the button or the text above.
Otherwise, you can check out the following Source 2 games with its Workshop Tools below:
The engine under the hood of Half-Life 2
can make your game a success. Let Source™ do the heavy lifting so that your team can focus on building great games.
If you're interested in building a product using Source or Source 2, talk to us about options for distribution on Steam
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