Valve today released the Source engine Software Development Kit (SDK) Tools via Steam.
The developer was quick to point out that this initial SDK is just a taste of what’s to come; the full version of the SDK will be released shortly after Half-Life 2 is made available.The Source SDK Tools release offers a comprehensive toolset for starting production on Source-based MODs, including Hammer, XSI EXP for Half-Life 2, compiling tools, the Source Model Viewer, documentation on programming, modeling and building materials.
For more info please visit http://collective.valve-erc.com/
News source: DailyGame