The flexible game engine
Godot is a powerful cross-platform game engine
Solar2D Game Engine main repository (ex Corona SDK)
Fast and lightweight JavaScript game engine built on WebGL and glTF
Multi-platform 2D and 3D game engine
Multi-platform Engine for Desktop, XBOX (UWP) and Mobile games
Cocos simplifies game creation and distribution with Cocos Creator
Cross-platform 2D and 3D game engine with modular architecture
An OpenGL RTS game engine written in C
A game engine with an emphasis on real-time cutting-edge solutions
Zig game engine & graphics toolkit
Xash3D FWGS engine
Open source voxel game engine with support for survival and crafting
A complete 3-D game development suite written in Java
Game engine supporting many 3D/2D formats and graphic effects
Unreal Engine Archives Explorer
Write your game with TypeScript in UE or Unity
Multi Theft Auto is a game engine
A game engine powered by python and panda3d
Improve your Baduk skills by training with KataGo
Cross-Platform C++ 2D/3D game engine
An unofficial rules engine for the world's greatest card game
Recreation of the classic Grand Theft Auto III game executable
A modular Common Lisp game engine
LayaAir is an open-source 2D/3D engine