Odamex is a free, cross-platform, modern client-server Doom engine
LGSL (Live Game for PHP 5.4-8+: online status for various gameservers
Cosmos Tycoon is a open source transport simulation browser game.
Simple meta-server for locating other multiplayer servers
A simple 2D-Chess
canarymod plugin to play capture the flag on minecraft
Java decentralized cross-platform network multiplayer game engine
MOVED OUT OF SOURCEFORGE - Server software for Minecraft PE
breakout/arkanoid clone multiplayers network game at 360°!
web cms for clans and esport related pages
The original Xivio.com World Server Core
Minecraft private Skin Center
Proxy for games that emulates network conditions like ping and lag.
Modular Minecraft server plugin - commands, events, ...
A multiplayer First-Person-Shooter game built in Java 3D
Space Exploration Game
Battlefield 3 Remote Administration and Information PHP Class
Multi-user whiteboard emphasizing simplicity.