Cross-Platform C++ 2D/3D game engine
Android OpenGL 2.0 application to view 3D models
The Open Toolkit library is a fast, low-level C# wrapper for OpenGL
3D Procedural Game Engine Using OpenGL
scene-oriented, flexible 3D engine (C++, Python, C#, Java)
A Java math library for OpenGL rendering calculations
A game engine powered by python and panda3d
Simple and light-weight 3D game engine
Desktop/Android/HTML5/iOS Java game development framework
Lightweight, high-performance HTML renderer for game developers
Gideros Release version
Amateur 3D Game Engine
Free game engine for development of desktop, mobile, and web games
A multiplatform medieval 3D MMORPG
Open source software calculating industrial noise in the environment
Zig game engine & graphics toolkit
Stride (formerly Xenko), a free and open-source cross-platform C# game
Multi-platform 2D and 3D game engine
3D Game engine with editor
3D space trading and combat game
Game engine supporting many 3D/2D formats and graphic effects
Flax Engine, multi-platform 3D game engine
Open game and rendering engine packed into a JavaScript framework