PufferPanel is an open source game server management panel
Azuriom is a complete open-source web solution for game servers
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 mobile game distributed server implemented using netty4.X
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
An easy to use and powerful game control panel
qscore is a suite of tools to parse Quake III: Arena games.log