Open Source real-time strategy game engine for early Westwood games such as Command & Conquer: Red Alert written in C# using SDL and OpenGL. Runs on Windows, Linux, *BSD and Mac OS X.

Mirror of CMake upstream repository

Cross-Platform C++ GUI Library

The OpenGL Extension Wrangler Library

A multi-platform library for OpenGL, OpenGL ES, Vulkan, window and input

Reference implementation of the Ogg Vorbis audio format.

Reference implementation of the Ogg media container

OpenGL Mathematics (GLM)