Source SDK
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The Source SDK is a software development kit compiled by Valve that is used to create maps or mods for the Source Engine. The SDK includes:
- A launcher similar to main menus seen in early Valve games.
- A drop down menu to select the Source Engine version, and base game.
- Hammer World Editor.
- model face poser and animator.
- and some other stuff.
In 2003, the Half-Life 2 beta source code was leaked to the public, the leak included the source code for a early build of Team Fortress 2 and the SDK.
