Xash3D FWGS engine
Various things for PSX (PlayStation 1, PSone)
OptiScaler bridges upscaling/frame gen across GPUs
Multi Theft Auto is a game engine
The HTML5 Creation Engine
DeSmuME is a Nintendo DS emulator
Fast PlayStation 1 emulator for x86-64/AArch32/AArch64
Open source library for creative expression on the web, desktop, etc.
An open source Minecraft reimplementation written from scratch
3D Engine c++
realistic driving simulation + functions for 2D/3D graphics
3D driving simulation based on Open Dynamics Engine
A modern re-implementation of the classic DOS game Duke Nukem II
Mini game engine for games104
Low-Level Game Engine for Retro Platforms
OpenSAGE is a free, open source re-implementation of SAGE
Asphyre is a cross-platform framework for Delphi and FreePascal.
3D .NET engine for Windows, Linux, Mac
A 3D Game Framework
a very lightweight advanced terrain-rendering and 3D map rendering sys
A game engine written in the D programming language
Free-roaming 3D racing game featuring advanced terrain rendering