Mangos ZERO is a server for World of Warcraft
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
Web based Game server control panel
An easy to use and powerful game control panel
Create your own online real-time browser-based MMO in your website
c# game server framework