Real Time Strategy game engine supporting early Westwood classics
An asynchronous event driven PHP socket framework
A lightweight online game framework
Domination is a game that is a bit like the board game Risk
A strategy game with a high fantasy theme
A companion for your LOTRO activities
LGSL (Live Game for PHP 5.4-8+: online status for various gameservers
Odamex is a free, cross-platform, modern client-server Doom engine
Arianne is an engine to develop multiplayer online games like Stendhal
The ultimate cataloguer
An open-source Phantasy Star Online server for *nix
90-ball bingo with sound
Full featured MUD server with all the trimmings.
Classic arcade game remake of Swing Plus -Total Mindcontrol
Java Settlers
Spring is a free RTS engine developed for Windows, Linux and Mac OS X.
Character animation system for games and simulations.
A complete web framework to create online Fighting Fantasy adventures
X3D Prototypes for the SMUOS Component
oGame-like browser space realtime strategy game based on xNova
Run Linux on the Playstation 2