Retro game engine for creating games like it's 1997
Java Settlers
Customizable and compatible open source server for Minecraft
Crossfire RPG Game Weather Patch -- Now a branch on the official repo!
99.95% station. 0.05% bees
A cross-platform 2D game engine
Planimeter Game Engine 2D - LÖVE-based game engine for Lua
Based on the raedwulf-et project
A first person multiplayer shooter example project in Unity
The codebase used by the VORE SS13 server, based on Polaris SS13
Baystation's flavor of Space Station 13
The code for Aurorastation's new base, forked from Baystation12
A mobile game distributed server implemented using netty4.X
Massive Multiplayer Online Wargame Leveraging the Internet
Web based Game server control panel
Quake C mods and support - SSQC / CSQC
The best code this side of the galaxy
tiny code, html webcam game or plug brain in each blob, java server
Android, DOS, FirefoxOS, Linux, MacOS and Windows all in one..
plugin-based RPG manager in C++ and Qt5
Battlefield bad company 2 Master server emulator + Server R34