Arianne is an engine to develop multiplayer online games like Stendhal
An open-source Phantasy Star Online server for *nix
A suite of tools to make running a AzerothCore server on Linux easier
Alpha One is based on Vallheru
online 4X browser game engine
Game engine allows you to create own MMORPG
JavaScript library to generate GW2 ToolTips based on official Wiki
Modular Gaming Open Source Persistent Browser Based Game Framework
Yet Another PHP EVE API Library.
Eve Online Corp Database
Simple Web Site to display Re-inforcement Timers for Eve Online
PHP WOW Battle.net Armory Raider
To create an open source and openly developed mmorpg
PHP-Nuke modified version
Mafia MMORPG Browser-Based game
Modular Minecraft server plugin - commands, events, ...