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
Cocos simplifies game creation and distribution with Cocos Creator
Multi-platform Engine for Desktop, XBOX (UWP) and Mobile games
Cross-platform 2D and 3D game engine with modular architecture
A game engine with an emphasis on real-time cutting-edge solutions
Multi-platform 2D and 3D game engine
An OpenGL RTS game engine written in C
Zig game engine & graphics toolkit
Xash3D FWGS engine
Game engine supporting many 3D/2D formats and graphic effects
A complete 3-D game development suite written in Java
Open source voxel game engine with support for survival and crafting
Unreal Engine Archives Explorer
Multi Theft Auto is a game engine
A game engine powered by python and panda3d
LayaAir is an open-source 2D/3D engine
Cross-Platform C++ 2D/3D game engine
An unofficial rules engine for the world's greatest card game
Improve your Baduk skills by training with KataGo
Open 3D Engine (O3DE) is an Apache 2.0-licensed multi-platform 3D
A modular Common Lisp game engine
Write your game with TypeScript in UE or Unity