Arianne is an engine to develop multiplayer online games like Stendhal
An open-source Phantasy Star Online server for *nix
A fun realistic multiplayer free-and-open-source first-person-shooter!
LGSL (Live Game for PHP 5.4-8+: online status for various gameservers
BOT IRC in Perl
Multidocument automation by templates - for sphinx, mkdocs, epydoc ...
Make containers fly - FlightGear scenery containerized
The codebase used by the VORE SS13 server, based on Polaris SS13
Cross platform administration tool for Source Engine dedicated servers
Yet Another PHP EVE API Library.
An e-stim signal generator in java
Rigs of Rods Multiplayer server
Automatic chooser of optimal fleet (with limits) for Ogame
Game framework on top of Python, Panda3D and Twisted