Multi-platform Engine for Desktop, XBOX (UWP) and Mobile games
Descent 3 by Outrage Entertainment
Map Pixel Art Generator for Minecraft
Cross-platform 2D and 3D game engine with modular architecture
Create custom themes for the Nintendo Switch
An open source re-implementation of RollerCoaster Tycoon 2
Mangos ZERO is a server for World of Warcraft
Open source simulation game based on Transport Tycoon Deluxe
RPG Maker 2000/2003 and EasyRPG games interpreter
The ioquake3 community effort to continue supporting/developing id's
Widelands is a free, open source real-time strategy game
A tool for converting Xbox 360 shaders to HLSL
Open source clone of the Age of Empires II engine
Flexible level editor
A multi core friendly rigid body physics and collision detection lib
Multi-platform 2D and 3D game engine
3D Procedural Game Engine Using OpenGL
Write your game with TypeScript in UE or Unity
Recreation of the classic Grand Theft Auto III game executable
Open-source OpenGL/SDL2 reimplementation of Sid Meier's Alpha Centauri
3D Game engine with editor
Community effort to maintain and improve Jedi Academy (SP & MP)
Free game engine for development of desktop, mobile, and web games
Cross-platform, open source, and super fast MUD client with scripting
A lightweight game server framework implemented with Actor Model