A fancy self-hosted monitoring tool
LGSL (Live Game for PHP 5.4-8+: online status for various gameservers
NSV13, a Ship-to-ship Combat SS13 Server
An open-source release of previously closed-source Farweb
Massively multiplayer online game server and client framework
The best code this side of the galaxy
Create your own online real-time browser-based MMO in your website