Free MMORPG Engine. Develop and host graphical browser-based games.
DimensioneX is a free Massive Multiplayer Game Engine.
It lets you develop and then run or host browser-based, graphical multiplayer games. The users will play games simply via their browser.
DimensioneX runs on any Java-enabled web server (eg. Tomcat)
SimpleShogi is a Java implementation of the game Shogi (japanese chess) it supports hot seat and multiplayer via network (UDP). SimpleShogi offers intuitive symbols for beginners but does not implement an AI-player.