Open 3D Engine (O3DE) is an Apache 2.0-licensed multi-platform 3D
Injectable LUA scripting system, SDK generator, live property editor
Multi Theft Auto is a game engine
Solar2D Game Engine main repository (ex Corona SDK)
scene-oriented, flexible 3D engine (C++, Python, C#, Java)
The game engine for everyone
Open-source engine for Heroes of Might and Magic III
fheroes2 is a recreation of Heroes of Might and Magic II game engine
Powerful, mature open-source cross-platform game engine for Python
Multi-platform 2D and 3D game engine
Voxel game-creation platform with easy modding and game creation
Free game engine for development of desktop, mobile, and web games
dhewm 3 main repository
Cocos simplifies game creation and distribution with Cocos Creator
Descent 3 by Outrage Entertainment
Cross-platform 2D and 3D game engine with modular architecture
A game engine with an emphasis on real-time cutting-edge solutions
A multi core friendly rigid body physics and collision detection lib
Recreation of the classic Grand Theft Auto III game executable
3D Game engine with editor
Multi-platform Engine for Desktop, XBOX (UWP) and Mobile games
RPG Maker 2000/2003 and EasyRPG games interpreter
Open source clone of the Age of Empires II engine
3D game engine with lua scripting
Cross-Platform C++ 2D/3D game engine