Arianne is an engine to develop multiplayer online games like Stendhal
GameServer is a sophisticated, game server designed for online games
Lucifer: The Ultimate Dev-Ecosystem
LSJ-Server-Terra (Java Multipurpose Sever connected with MariaDB)
LGSL (Live Game for PHP 5.4-8+: online status for various gameservers
Linux game server utility.
Free MMORPG
Script to start up Nexuiz Linux server at boot time and if it crashes
Game server browser
Play old LAN games across the world!
Massive Multiplayer Online Wargame Leveraging the Internet
starrydb is game server engine
Massively multiplayer online game server and client framework
Web based Game server control panel
Top-down multi-player zombie survival game
An easy to use and powerful game control panel
Nexuiz-Xonotic Client
Proxy for games that emulates network conditions like ping and lag.
A FastDL Server for Counter Strike in C#
Upload games to legacy apple // computers via serial and no floppies!