Xash3D FWGS engine
3D Game engine with editor
Injectable LUA scripting system, SDK generator, live property editor
scene-oriented, flexible 3D engine (C++, Python, C#, Java)
Free game engine for development of desktop, mobile, and web games
3D game engine/framework in C, with Luajit and Python bindings now
Powerful, mature open-source cross-platform game engine for Python
A complete 3-D game development suite written in Java
GemRB is a portable open-source implementation of the Infinity Engine
Open source voxel game engine with support for survival and crafting
RGBD video generation model conditioned on camera input
3D game engine with lua scripting
Java/JavaFX/Kotlin Game Library (Engine)
3D Procedural Game Engine Using OpenGL
Helix Toolkit is a collection of 3D components for .NET
Reusable code for building video games with Jogamp NEWT
Voxel game-creation platform with easy modding and game creation
Unreal Engine Archives Explorer
Simple and easy 3D engine for LÖVE
Android OpenGL 2.0 application to view 3D models
Embeddable unity game engine view for Flutter
Stride (formerly Xenko), a free and open-source cross-platform C# game
Recreation of the classic Grand Theft Auto III game executable
Lightweight, high-performance HTML renderer for game developers