The flexible game engine
Stride (formerly Xenko), a free and open-source cross-platform C# game
Multi Theft Auto is a game engine
Solar2D Game Engine main repository (ex Corona SDK)
Svelto ECS C# Entity Component System
A pure Go game engine
A game engine powered by python and panda3d
Free game engine for development of desktop, mobile, and web games
dhewm 3 main repository
Ct.js is a desktop game engine that makes learning programming fun
scene-oriented, flexible 3D engine (C++, Python, C#, Java)
The ioquake3 community effort to continue supporting/developing id's
The Open Toolkit library is a fast, low-level C# wrapper for OpenGL
Descent 3 by Outrage Entertainment
An easy to use 2D HTML5 game engine written in TypeScript
Recreation of the classic Grand Theft Auto III game executable
New Godot bindings for Swift
High performance UI layout library in C
Voxel game-creation platform with easy modding and game creation
Powerful, mature open-source cross-platform game engine for Python
Xash3D FWGS engine
The game engine for everyone
3D Procedural Game Engine Using OpenGL
3D Game engine with editor
Cocos simplifies game creation and distribution with Cocos Creator