Source SDK Documentation

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About Source · Download and Installation · Distributing Source mods · Frequently Asked Questions · Release Notes

Modding Creating, organizing and releasing your   project. Level Design Maps are the 3D worlds where everything comes together. Programming A mod's C++ code defines the way its world and game rules behave. Scripting Scripting can be used for adding new functionality or logic to entities. Modeling Models are the detailed 3D objects that appear in the game world. Materials Textures and shaders are combined in   to create materials. Sounds Quality audio adds a fourth dimension to your world. Particles Effects like smoke, sparks, blood and fire are created with particles. Artificial Intelligence AI controls the behavior of all but the simplest of NPC actions. Choreography Direct your digital actors' performances with choreographed scenes. Filmmaker Create movies inside the  . Tutorials Step-by-step guides on a variety of topics. Technical In-depth discussion on the   features. Glossary Explanations for terms you may encounter. Official Tools Official tools made by   for their games. Third-Party Tools Useful developer tools created by the community. I/O System The I/O system is the backbone of most levels in Source-based games/mods.