Cross-Platform C++ 2D/3D game engine
Open 3D Engine (O3DE) is an Apache 2.0-licensed multi-platform 3D
3D engine with modern graphics
Cross-platform 2D and 3D game engine with modular architecture
Cocos simplifies game creation and distribution with Cocos Creator
Multi-platform 2D and 3D game engine
Simple and light-weight 3D game engine
Multi-platform Engine for Desktop, XBOX (UWP) and Mobile games
aka ogre v2 - scene-oriented, flexible 3D C++ engine
Flax Engine, multi-platform 3D game engine
scene-oriented, flexible 3D engine (C++, Python, C#, Java)
Voxel game engine in C++ with OpenGL
3D Engine c++
UZDoom is a feature centric port for all Doom engine games
3D Game engine with editor
A real-time physically based 3D rendering engine for React Native
Free game engine for development of desktop, mobile, and web games
Real-time physically based rendering engine for Android, iOS, and more
3D Procedural Game Engine Using OpenGL
3D game engine with lua scripting
Powerful, mature open-source cross-platform game engine for Python
Voxel game-creation platform with easy modding and game creation