Recreation of the classic Grand Theft Auto III game executable
Fast and lightweight JavaScript game engine built on WebGL and glTF
Xash3D FWGS engine
Solar2D Game Engine main repository (ex Corona SDK)
Descent 3 by Outrage Entertainment
scene-oriented, flexible 3D engine (C++, Python, C#, Java)
Game engine supporting many 3D/2D formats and graphic effects
PyCAPGE - Python Classic Adventure Point and Click Game Engine
The multiplayer game engine
3D C++ Game Engine - yet another open source game engine
An open source re-implementation of Diablo 2
3D playground built on three.js and cannon.js
OpenSAGE is a free, open source re-implementation of SAGE
2D game engine for traditional platform games
Game engine supporting many 3D/2D formats and graphic effects