Solar2D Game Engine main repository (ex Corona SDK)
Multi-platform Engine for Desktop, XBOX (UWP) and Mobile games
Multi-platform 2D and 3D game engine
Cocos simplifies game creation and distribution with Cocos Creator
Flax Engine, multi-platform 3D game engine
Cross-Platform C++ 2D/3D game engine
Cross-platform 2D and 3D game engine with modular architecture
The game engine for everyone
A JavaScript engine optimized for running React Native
A game engine with an emphasis on real-time cutting-edge solutions
Simple and light-weight 3D game engine
Voxel game-creation platform with easy modding and game creation
GemRB is a portable open-source implementation of the Infinity Engine
Open-source engine for Heroes of Might and Magic III
Cromite a Bromite fork with ad blocking and privacy enhancements
scene-oriented, flexible 3D engine (C++, Python, C#, Java)
N64 Game-Engine and Editor using libdragon & tiny3d
Multi Theft Auto is a game engine
RenderDoc is a stand-alone graphics debugging tool
Android real-time display control software
Desktop/Android/HTML5/iOS Java game development framework
UCI chess engine
Recreation of the classic Grand Theft Auto III game executable
Descent 3 by Outrage Entertainment
A certain block game