Multiplayer FPS game - Counter-Strike: Football
Grow a Garden Script - Auto Farm, Infinite Seeds, Sell All
Cross-platform, open source, and super fast MUD client with scripting
A 2D multiplayer space shooter game
The world is no longer the same
tour based strategic game
Arianne is an engine to develop multiplayer online games like Stendhal
LGSL (Live Game for PHP 5.4-8+: online status for various gameservers
A fun realistic multiplayer free-and-open-source first-person-shooter!
Cross-platform real-time strategy game (3D)
A space shooter game. Run either race or mission, defeat evil enemies.
Free and open source Avatar Webgame made by Vietnam
NSV13, a Ship-to-ship Combat SS13 Server
FiveM (GTA: V, Grand Theft Auto V Multiplayer) utilities
An online multiplayer real time strategy game
This lets you create worlds more easily and to recreate a world
The "main" dev page for centinental supplies
A fast, scalable, distributed game server engine/framework for C++
Makes running a PSO server on Linux easier
oGame-like browser space realtime strategy game based on xNova
Set of utilities for making Xpilot easier to operate