Cross-Platform C++ 2D/3D game engine
Fast and lightweight JavaScript game engine built on WebGL and glTF
Cocos simplifies game creation and distribution with Cocos Creator
Cross-platform 2D and 3D game engine with modular architecture
Open 3D Engine (O3DE) is an Apache 2.0-licensed multi-platform 3D
The flexible game engine
Flax Engine, multi-platform 3D game engine
Multi-platform Engine for Desktop, XBOX (UWP) and Mobile games
Multi-platform 2D and 3D game engine
Solar2D Game Engine main repository (ex Corona SDK)
Godot is a powerful cross-platform game engine
Game engine supporting many 3D/2D formats and graphic effects
Zig game engine & graphics toolkit
LayaAir is an open-source 2D/3D engine
A game engine powered by python and panda3d
A modular Common Lisp game engine
3D and 2D game engine written in Rust
An OpenGL RTS game engine written in C
A game engine with an emphasis on real-time cutting-edge solutions
Voxel game engine in C++ with OpenGL
3D Game engine with editor
Injectable LUA scripting system, SDK generator, live property editor
Xash3D FWGS engine
scene-oriented, flexible 3D engine (C++, Python, C#, Java)
Free game engine for development of desktop, mobile, and web games