GoldSrc and the Half-Life SDK 

If you want to create a Mod forHalf-Life or looking for moreGoldSrc documentation, click above.

 Source and the Source SDK 

If you want to create aSource SDK Base mod, or content-based mod forHalf-Life 2,Team Fortress 2 or looking for moreSource documentation, click above.

 Source 2 Documentation 

If you want to portSource content toSource 2, create a content-based mod for Source 2 games or looking for more Source 2 documentation, click above. Otherwise, you can check out the following Source 2 games with Workshop Tools:

• Dota 2 Workshop Tools 

• SteamVR Workshop Tools 

• Half-Life: Alyx Workshop Tools 

• Counter-Strike 2 Workshop Tools 

• Source Engine Features
• Why choose the Source engine for your mod?
• ReadMaking a Mod - building a team through the shipping process.
• Already using the SDK? Check theSource SDK FAQ for some helpful answers.
• New to Source coding? Get started withbasic programming articles.
• Read (or add) a tutorial onSource development, or any part of the content creation process.