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)
PikeMudlib is a project that aims to create a powerful MUDlib using the Pike programming language. PikeMudlib allows for on-the-fly in-game development similiar to that offered by LPMuds.
JaMOOka is an applet-based MOO client. Designed for JHCore MOOs, it uses Amy Bruckman's MacMOOse utilities and the MCP 2.1 protocol to facilitate a number of advanced MOO editing and programming tasks through client windows.
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Multi User Dungeon game written in 100% Java.
Developers wanted for this project.
A new MUD is open for developers only. It is written entirely in Java 1.3.1 from scratch. The coding interface is very similar with lpmud programming.
The Euphoric Ataxia project is an attempt to create a fast, reliable, secure and stable MUD (multi-user dungeon) server and engine entirely in the Java programming language in order to ensure portability.
Rock: Crashed Plane (R2) (http://www.dillfrog.com/games/r2/) is an open source multi-user dungeon (dimension, or sometimes domain) coded in the perl programming language and licensed under the GNU General Public License.
The majority of the code was open-sourced as a courtesy when the original server was taken offline. The codebase is largely abandoned, and has not been updated to follow best practices. Use with caution.