Mar 26, 2025 · The Source SDK is freely available to all Steam users. It is used to develop mods and content for the Source 2006, Source 2007, Source 2013 and Team Fortress 2 branch engine branches. Valve games (running on Source 2013 branch, or Team Fortress 2 branch), usually have Source SDK tools installed by default.

Mar 26, 2025 · Source SDK Base is a game/tool available to all Steam users which is locked to a particular engine branch. Compared to basing your mod on a "real" game, use of SDK Base massively increases your potential audience and prevents incompatible engine updates from making your code or the mod unusable.

Feb 18, 2025 · We've just released a massive update to the Source SDK, adding all the Team Fortress 2 client and server game code. This update will allow content creators to build completely new games based on TF2.

Source code for Source SDK 2013. Contains the game code for Half-Life 2, HL2: DM and TF2. Now including Team Fortress 2!

Feb 8, 2023 · As of now, no. We have some tools that exist for Source 2, namely for DOTA 2, SteamVR Home, and Half-Life: Alyx, but none of these are a full SDK. They’re missing tools and we have no way to add new stuff in the code like we can with Half-Life 2.

Dec 8, 2024 · Hello, What SDK do I need for Half-Life 2 map/model editing, is it the Half-Life SDK o Source SDK and what Source Base Engine do I need 2006 or 2007? Thanks

Aug 22, 2013 · source sdk base is free for all steam user so you don't need hl2, tf2 or any valve game to mod with the sourcesdk. Ok... But it's says "please pick a game to edit or make a mod" And the only things its say that I only have is. the source sdk 2007 will not work with the new version of the HL2 engine. this is not the 2007 vfersion but the 2013.

Aug 7, 2013 · source sdk are tools for source sdk base but not only , as in some case the source sdk is require to mod for some specific games powerred by the source engine. But anyway , the source sdk base is the plateform to run the component created with the source sdk tools.

Dec 23, 2013 · Before starting a mod you need to choose which version of Source you will use. Change the SDK's engine version to the one you want. Outdated - Original Half Life 2: Episode One mod. Only included for backwards compatibility reasons. Original Orange Box mod. This is the most recent HL2-Based engine branch available.

Source SDK Base is a game/tool available to all Steam users which is locked to a particular engine branch. Compared to basing your mod on a "real" game, use of SDK Base massively increases your potential audience and prevents incompatible engine updates from making your code or the mod unusable.