Xash3D FWGS engine
Multi Theft Auto is a game engine
3D game engine/framework in C, with Luajit and Python bindings now
The HTML5 Creation Engine
Ct.js is a desktop game engine that makes learning programming fun
Open source library for creative expression on the web, desktop, etc.
Full featured MUD server with all the trimmings.
A cell-based puzzle game featuring classic and completely new puzzles
Vivid3D is an open-source 3D engine with powerful 2D UI.
Mini game engine for games104
Low-Level Game Engine for Retro Platforms
OpenSAGE is a free, open source re-implementation of SAGE
scriptable game engine with built-in support for 2D graphics and sound
A mobile game distributed server implemented using netty4.X
Game engine allows you to create own MMORPG
A game engine written in the D programming language
C++ OpenSource Game Fabric based on SDL2
A 3D, fully concurrent game engine
3D game engine for C and C++
Zen3D is a 3D engine and editor for creating games