Cross-Platform C++ 2D/3D game engine
A modern cross-platform low-level graphics library
An OpenGL RTS game engine written in C
Xash3D FWGS engine
Simple and light-weight 3D game engine
Zig game engine & graphics toolkit
Voxel game engine in C++ with OpenGL
Vulkan renderer mod for Minecraft
A re-implementation of Freelancer
Roo Code (prev. Roo Cline) gives you a whole dev team of AI agents
scene-oriented, flexible 3D engine (C++, Python, C#, Java)
The Open Toolkit library is a fast, low-level C# wrapper for OpenGL
aka ogre v2 - scene-oriented, flexible 3D C++ engine
A Minecraft mod designed to improve frame rates
Improved Quake III Arena engine
3D Engine c++
A modular Common Lisp game engine
3D Procedural Game Engine Using OpenGL
Multi-Joint dynamics with Contact. A general purpose physics simulator
Animation engine for explanatory math videos
SwiftShader is a high-performance CPU-based implementation
crossplatform multithreaded object-oriented render and audio engine
Android OpenGL 2.0 application to view 3D models
Innovative user interfaces made easy
Open source clone of the Age of Empires II engine