Open Source Windows 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.

MirageMUD is a source code base for developing your own stand-alone MUD client and server in Visual Basic 6. The code base comes with all the necessary basic functionality to immediately begin developing your MUD game right off the bat. A C# version of MirageMUD is currently in development: https://github.com/Xlithan/MirageMUD2

Argentum Online is an Open Source FREE 2D MMORPG, it has: guilds, magic, combat, animal taming, 21 skills, a huge world with towns and dungeons. Several races and professions. Client and server are distributed under Affero GPL v1.

TinTin++ is a console mud client for any type of text mud or bbs. The mud client's main assets are an easy to learn scripting language, triggers, automapping, and a split screen interface to separate mud output from client input. Installation instructions for Android, iOS, and several other operating systems are available on the website. https://tintin.mudhalla.net

Qodem is a a terminal emulator that resembles the BBS-era Qmodem. Includes phonebook, scrollback, capture, X/Y/Zmodem, Kermit, ANSI (+ music) / Avatar / VT102 / Linux emulation, Unicode, and keyboard macros. Connects over serial, ssh, telnet, rlogin.

Dungeon Digger is a 3D RTS game based on Dungeon Keeper.

Multiplatform 3D MMORPG Current version have a map of more than 1.000.000 m2, plus caves and hell sceneries, 17 NPCs, 26 kinds of monsters, 63 different items and 100 quests. Test server is up! Just download and run!

This project has been moved to github.com. You can find the new project at: https://github.com/opentibia

Worldforge provides clients, servers, tools and protocol to allow for anyone to create and host their own virtual and online world.

Sourceforge is discontinued, now on Github: https://github.com/Dawn-of-Light Framework for interacting with the Dark Age of Camelot client (Mythic, EA/Mythic, BioWare, Broadsword licensed). Also know as a Dark Age of Camelot ( DAoC ) Server Emulator. Give life to your own world ! Please consider playing live: http://www.darkageofcamelot.com

English: Cover AO is an FREE 2D MMORPG Open Source based of Argentum Online (https://sourceforge.net/projects/morgoao/) Inside this fantasy free world, set in a medieval era. You are in charge of writing your own story. Where you can build, train, trade, conquer and interact in real time with the rest of the players in the world. Important: Client and server are distributed under Affero GPL v1. - Spanish: Cover AO es un MMORPG 2D GRATUITO de código abierto basado en Argentum Online (https://sourceforge.net/projects/morgoao/) Dentro de este mundo libre de fantasía, situado en una época medieval. Tú eres el encargado de escribir tu propia historia. Donde podrás construir, entrenar, comerciar, conquistar e interactuar en tiempo real con el resto de los jugadores del mundo. Importante: El cliente y el servidor se distribuyen bajo Affero GPL v1.

A modern open source MUD client with a graphical user inteface and full built in Lua scripting support for all major platforms.

An Open-Source map editor coded in C++ to be used with OpenTibia. Supports many advances features such as autobordering. Runs under both Linux and Windows using wxWidgets and OpenGL.

Ryzom Core is a toolkit for the development of massively online universes. It provides the base technologies and a set of development methodologies for the development of both client and server code.

KildClient is a mud client using the GTK toolkit. Its main feature is the support of Perl scripting. Other standard features of mud clients (triggers, gags, macros, etc.) are also supported.

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.

SteamEngine is a new open-source UO server emulator coded in C#, which can read and run Sphere scripts. It`s domains are supposed to be extreme customizability even for non-programmers, and a clean and readable codebase. The project is now abandoned. The "intended for the public" phase ended long ago. The "OldCode" repository is that (if that still works). Then for a while we intended it for the UO shard moria.cz, but that didn't succeed either, and the shard is now defunct. The last commit of this phase is r904 in "SvnCode" repository. Lately I've using the codebase for experiments with in-memory transactions. First part is abandoning NANT for building and moving to VS 2015. That's done in r922. This is the last functional code. After that the transaction stuff is added which basically means the server is broken. Ultimately I've moved to GitHub, where the development may or may not continue. We'll see. This is a final goodbye.

The project 'MultiVerse' will be an open, decentralized, 3D virtual world where players and server owners can create or import content, build objects and define custom behaviour using scripts. Players can interact with objects in various ways.

An Open Source Cipsoft's Tibia Client Replacement.

A Visual Basic, Telnet MUD (Multi-User-Dungeon) Server. Utilizing newly developed methods for easier game play in the simple telnet environment.

Legend of the Green Dragon is a remake of the old BBS game Legend of the Red Dragon (aka LoRD). All support for this game resides at http://dragonprime.net

Trebuchet is a 100% TCL cross-platform GUI MUD client, designed to be powerful and extensible, yet easy to use. This client also has support for advanced features, such as SSL encryption, and allowing the server to request custom GUI dialogs.

BeanMUD is a Windows-based MUD server written in Microsoft Visual C++.