Open Source Java Multi-User Dungeons (MUD) Games

Arianne is a multiplayer online engine to develop turn based and real time games, providing a simple way of creating the game server rules and clients like our MORPG Stendhal. Our engine Marauroa uses Java and SQL for hosting hundreds of players on a solo host. Stendhal is a fun friendly and free multiplayer online adventure game with a huge and rich world. With hundreds of NPCs and different quests, features like the Travel log and achievement system keep track of progress. Thousands of creatures are ready to fight, above and below ground, and as players level up they can compare themselves on a detailed stats website. The engine Marauroa provides a simple way of creating games on a portable and robust server architecture. Marauroa manages the client server communication and provides an object orientated view of the world for game developers. It handles database access in a transparent way to store player accounts, character progress and the state of the world

Crossfire is a free and open-source cooperative multiplayer graphical RPG and adventure game. Set in a medieval fantasy world, it combines real-time action with traditional role-playing mechanics inspired by games such as Gauntlet, NetHack, Moria, and Angband. Players can choose from 14 races and 16 character classes, develop skills and magic, worship gods, complete quests, discover powerful artifacts, and explore thousands of interconnected maps filled with monsters, dungeons, cities, and adventures. Crossfire has been continuously developed since 1992 and remains an actively maintained community project.

Alternative Lineage 2 Game Server written in Java.

The goal of the project is to create a Java multi-user game server that can be easily extended and used for adding a multiplayer feature to games. User authentication, chat and interfaces for adding custom capabilities will be provided out of the box.

ELMVE is a server-client system which provids 3D virtual environments based on Java.

The Warlock Front End is written to allow Simutronics games to be played in Linux, Mac OS, and Windows. The primary focus at this time is on Dragonrealms, but other Simultronics games work to varying degrees.

L2Net is .net Alternative Lineage 2 Server and Client.

PolskaOnLine is multiplayer online 2D game using Java and SQL.

Thud is a Java client designed to connect to Battletech MUXes and display combat data in a easy-to-read tactical display. It displays a tactical map, contacts list, armor status and more. Note: Sources have moved to github: https://github.com/parkera

<p> A new cartography mapping tool was introduced with the new Everquest:Legacy of Ykesha(tm) extension in March'03. This tool allowed players to view, edit and create maps of most zones in the Everquest world. The EQ Map Viewer program is an open

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)

Multiplayer online role playing game, based on original mechanics and setting, with a light client (runnable as a Java Applet) and persistent, highly customizable server.

Cloud9 is a web-based MUD client that uses the full power of JavaScript, HTML, and CSS in order to deliver a flexible, good looking, powerful MUD client that can run on any machine without installation, utilizing a plain web browser (w/ JVM 1.4 support).

MudBuilder is a graphical application to build and edit areas for Multi-User Dungeons (MUDs). It features import/export plugins and MUD configuration files to make conversion to/from any MUD a snap.

This game is a multi-player on-line persistent 3D game. Players can walk around a realistic city, shooting and entering cars. The aim of the game is to hunt down and kill the enemy covertly. It's a remake of Turbo Esprit, and not unlike GTA.

Sonnheim - A place in the sun, to meet friends and explore worlds. Sonnheim is a multi user environment consisting of landscape and city like maps. It tries to combine the ideas of socializing and role playing and provides an environment for this.

The Java(tm) Telnet Applet is a fully featured telnet/SSH program that allows users to connect and login to remote hosts via the Internet or an Intranet using only their WWW Browser. It includes not only telnet-compliant connection services, but also th

ele (enCore Learning Environment) is a moo- and web-based environment (server, db, GUI) designed for educational purposes. It aids and promotes online learning and community building through open standards and ease of use. http://encore-consortium.org/

A 3d chatroom where the things people write gravitate toward eachother based on total strength of associations between those short texts. Strength is a competition of who spends the most computing time trying to associate the texts, similar to Bitcoin's "proof of work" system. While there is unlimited space in the system overall, the space around any specific text is limited by 3d space, which drives competition for what people want that text to be associated with. It can be used like a forum or chatroom to associate text with responses, or to associate election candidates names with their positions on the issues, or to associate your website URL with things. Many possible uses, and a global competition for what gets associated to what else. In this peer to peer network, pairs of short text are communicated based on highest "proof of work" (see Bitcoin's design doc) on each pair, so the pairs of text that the most time is spent toward associating will spread through the network.

BladeMaster 2 is text-based multi player arena combat simulation game. BladeMaster 2 is a resurrection of a classic BBS game. It's purpose is to create a greatly enhanced and open source version based on the original, playable on modern systems.

Part authoring tool, part electronic environment, BrightMOO is designed to demonstrate the feasibility of building client-side, three-dimensional interactive environments using existing MOO technology.

PAiN Mud codebase is a new MUD codebase written in Java. It provides general purpose persistence engine (PAiN DB) and ability of dynamic code reloading.

Times of Darkness (ToD) is a MUD. It's designed for the use of mods and all data is kept in XML files. That way it's possible to create an end time adventure as well as a medieval role-playing game. Well, there's much to do!

A virtual reality (VR) system for the Internet based on a secure distributed object system. ADR has been renamed and moved: please see new site interreality.org

The populair MUD-game BatMUD (http://www.bat.org) provides players with its own Java client application, developed by MythScape. This project tries to provide an extendable framework for building and using plugins for the BatClient