LGSL (Live Game for PHP 5.4-8+: online status for various gameservers
The ultimate cataloguer
Full featured MUD server with all the trimmings.
JavaScript framework to build game engines, games, emulators and apps
Analysis of Oware (Abapa) games
Java Settlers
Playing Go with web-based turn-based Go server
Cosmos Tycoon is a open source transport simulation browser game.
Aire de jeu de Belote en ligne
Web based Game server control panel
Android, DOS, FirefoxOS, Linux, MacOS and Windows all in one..
Webinterface
The famous Maze War game recreated as a modern web application.
Star Trek Web browser game
web cms for clans and esport related pages
The original Xivio.com World Server Core