Source of Mana is a unique 2D MMORPG
0 A.D. is a free, open-source, cross-platform real-time strategy game.
A free 3d game for PC that does not limit the player. Fight,Build,Gain
Lines a game written in Python two players through internet
Crossfire RPG Game Weather Patch -- Now a branch on the official repo!
Alternative Teeworlds Client with many exciting features!
Free MMORPG
Multi scripts for CS:GO that do just about everything
JAVA websocket implementation for a bomberman-like game
My fork of Manic Digger
Advanced Wasteland mission using ACE for Arma II
The original Xivio.com World Server Core
Wizard of wor HTML5 remake.
Open Source Virtual World and MMOG Development Platform
Modular Minecraft server plugin - commands, events, ...
A lame multi-user dungeon engine.
Space Exploration Game
Multi-user whiteboard emphasizing simplicity.