Browse free open source MMORPG games and projects below. Use the toggles on the left to filter open source MMORPG games by OS, license, language, programming language, and project status.

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  • 1
    LOTRO Companion

    LOTRO Companion

    A companion for your LOTRO activities

    LOTRO Companion is a desktop application. It manages characters of the Lord of the Rings Online (LOTRO) MMORPG. It has 3 main goals: - track the status of one or several characters: current gear, deeds, quests, collections... - simulate gear/virtues, compute result stats and analyze stats contributions - lore database: quests, items, deeds, mounts, pets... Character data is imported from the game client running locally. See https://discord.gg/t2J4GDq See https://www.facebook.com/lotrocompanion/
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    5.0 out of 5 stars 3 Reviews
    Downloads: 2,710 This Week
    Last Update:
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  • 2
    Arianne RPG

    Arianne RPG

    Arianne is an engine to develop multiplayer online games like Stendhal

    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
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    4.7 out of 5 stars 56 Reviews
    Downloads: 498 This Week
    Last Update:
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  • 3
    WowUp (CurseForge)

    WowUp (CurseForge)

    WowUp CurseForge Client Repository

    WowUp CurseForge Client is a specialized distribution of the open-source WowUp addon manager designed for World of Warcraft players. It provides access to CurseForge addons through a graphical desktop interface. Users can discover, install, update, and remove addons without manually managing downloaded files. The application helps identify installed packages and check whether newer versions are available. It supports organizing addons for compatible World of Warcraft installations and game versions. Its centralized interface simplifies maintaining collections of gameplay enhancements and interface modifications. The original WowUp.CF repository is no longer independently maintained, as development of both WowUp clients has moved to the main WowUp repository. This distribution focuses on providing CurseForge integration within the WowUp addon management experience.
    Downloads: 65 This Week
    Last Update:
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  • 4
    WowUp

    WowUp

    WowUp the World of Warcraft addon updater

    WowUp is a free, open-source desktop application designed for discovering, installing, and updating World of Warcraft addons. It provides a centralized interface for managing modifications that enhance gameplay, user interfaces, and other in-game functions. The software supports multiple addon sources, allowing players to browse available extensions and maintain installed packages. Users can manage addons across different World of Warcraft installations and game versions. It automatically checks for available updates and simplifies the process of keeping addons current. WowUp also offers separate distributions with support for different addon providers, including CurseForge and Wago. Available for Windows, macOS, and Linux, it streamlines addon maintenance and reduces the need for manual downloads and installations.
    Downloads: 15 This Week
    Last Update:
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  • 5
     TrinityCore

    TrinityCore

    Open Source MMORPG Framework

    TrinityCore is an open source MMORPG Framework based mostly in C++, with a back-end of MySQL for the DB content. It is derived from MaNGOS, the Massive Network Game Object Server, evolving over time since it has become an independent project. It has undergone several changes that have optimized, cleaned up and improved the codebase as well as the in-game mechanics and functionality. TrinityCore has a database structure composed of the world database, characters database and auth database. It is also cross-platform. Being fully open source, community involvement is highly encouraged to help continuously improve TrinityCore.
    Downloads: 12 This Week
    Last Update:
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  • 6
    PolanieOnLine
    PolanieOnLine is multiplayer online 2D game using Java and SQL.
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    5.0 out of 5 stars 1 Review
    Downloads: 122 This Week
    Last Update:
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  • 7

    RyzomBlend

    Blender port of Ryzom art data

    Blender port of ryzom (http://ryzom.com/) data by Brian Ashcroft Original art (3ds max) and open source server available at http://ryzomcore.org/ All art is covered by the CC-BY-SA licence If you use the art, please make sure to include a link as explained here http://ryzomcore.org/about-ryzom-core/ Things that are working: 1. Conversion of 1200 animations, ~200 monsters, 5 races, and lots of vegetation. 2. Removal of weird textures/materials/supports, correction of bad paths 3. Cleanup of translations and rotations of all the items 4. Proper parenting 5. Collection of animations into separate files: walking, crafts, fighting ...
    Downloads: 206 This Week
    Last Update:
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  • 8

    STO Keybind

    STO Keybind Application creates complex keybinds for STO Game.

    The STO Keybind Application allows you to create complex sets of keybinds for the Star Trek Online Game. It does this by creating a text file that is then imported into the game using an in-game command. The graphical interface of this application allows you to configure your keybinds without any knowledge of how the text file format works. There are example videos through the HELP button that is in the application.
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    5.0 out of 5 stars 4 Reviews
    Downloads: 47 This Week
    Last Update:
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  • 9
    OpenKore

    OpenKore

    OpenKore is an automation tool for Ragnarok Online

    OpenKore is an automation tool for Ragnarok Online-compatible games, authorized to be used on KoreRO. **MOVING TO GITHUB** As of February 28th 2016, the OpenKore project has moved to GitHub. Please see the OpenKore wiki for more information: http://openkore.com/index.php/Git This SourceForge page will remain online for now, but the project has been locked in "read-only" mode and no more updates will be published here. **DOWNLOADING KORE FROM THIS PAGE WILL GIVE YOU AN OLD VERSION**
    5.0 out of 5 stars 39 Reviews
    Downloads: 24 This Week
    Last Update:
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  • 10
    CoverAO
    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.
    5.0 out of 5 stars 1 Review
    Downloads: 51 This Week
    Last Update:
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  • 11
    Argentum Online

    Argentum Online

    Argentum Online is an onlie role playing videogame

    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.
    5.0 out of 5 stars 6 Reviews
    Downloads: 19 This Week
    Last Update:
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  • 12
    Dawn of Light

    Dawn of Light

    Dark Age of Camelot server emulator

    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
    5.0 out of 5 stars 10 Reviews
    Downloads: 16 This Week
    Last Update:
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  • 13
    PW Tools

    PW Tools

    Collection of Tools for Perfect World MMORPG

    A set of tools for viewing/editing some selected perfect world client/server files THIS IS A PRIVATE FORK OF THE ORIGINAL PROJECT FROM 2013-11-29 THE OFFICIAL PROJECT CAN BE FOUND AT: http://pw-tools.googlecode.com
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    Downloads: 58 This Week
    Last Update:
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  • 14
    Darkfall Emulator

    Darkfall Emulator

    Develop an emulated Darkfall Online Server.

    This project is the development of an open source fully emulated Darkfall Online Server and reverse engineering the proprietary game engine that DFO uses, the SF3D engine as well as its source code.
    5.0 out of 5 stars 1 Review
    Downloads: 31 This Week
    Last Update:
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  • 15
    PyEveLiveDPS

    PyEveLiveDPS

    Live DPS calculator and grapher for EVE Online

    PyEveLiveDPS is an open-source real-time damage calculator and grapher for the MMORPG EVE Online. It reads the game's combat logs to calculate outgoing and incoming damage per second during gameplay. Interactive graphs display moving averages, helping players evaluate weapon performance throughout encounters. The application also monitors shield, armor, and hull repairs, capacitor transfers, energy neutralization, and mining output. Detailed breakdowns identify damage contributions by pilot and weapon type. Users can customize averaging intervals, graph settings, and window positions. A compact display can overlay EVE Online when running in borderless windowed mode. Multiple instances can monitor different characters simultaneously. Log playback supports reviewing previous combat activity, while profile settings preserve preferred configurations.
    Downloads: 2 This Week
    Last Update:
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  • 16
    Ryzom
    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.
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    4.0 out of 5 stars 9 Reviews
    Downloads: 15 This Week
    Last Update:
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  • 17
    Mundo The Game

    Mundo The Game

    A multiplatform medieval 3D MMORPG

    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!
    5.0 out of 5 stars 5 Reviews
    Downloads: 8 This Week
    Last Update:
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  • 18
    Ruthnar Online

    Ruthnar Online

    Free Online MMORPG with Battlegrounds

    Ruthnar Online is a free sandbox 2D MMORPG where you can face powerful creatures to develop your character in an open medieval fantasy world and craft your own equipment with eight diferent professions. The game also features guild wars and four different factions, join one of them to defend it and raid enemy cities. Finally, when you get strong enough you'll be able to fight in the BattleGrounds: Stronghold Conquests, Combat Arenas, Survival/Battle Royale, Leagues, Tournaments and more.
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    Downloads: 33 This Week
    Last Update:
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  • 19
    BNS Tools

    BNS Tools

    Collection of Tools for Blade & Soul MMORPG

    A set of tools for the chinese client of Blade & Soul
    Downloads: 30 This Week
    Last Update:
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  • 20
    ShowEQ Open Source Project
    ShowEQ or SEQ for short is a program designed to decode the EverQuest data stream and display that information on another computer running the Linux OS in real time. Our Forums are located at https://www.showeq.net NOTE: Code repository and releases have moved to https://codeberg.org/ShowEQ
    5.0 out of 5 stars 2 Reviews
    Downloads: 10 This Week
    Last Update:
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  • 21
    The VidiotMaps In-Game Map Overlay is a revolutionary method for adding the information you need to your City of Heroes & Villains in-game maps.
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    5.0 out of 5 stars 2 Reviews
    Downloads: 10 This Week
    Last Update:
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  • 22
    ESO Addon Manager

    ESO Addon Manager

    Cross platform addon manager for the Elder Scrolls Online

    ESO Addon Manager is a free, open-source desktop application for organizing modifications for The Elder Scrolls Online. It allows players to search, install, and remove addons available through ESOUI. The application automatically detects addons already installed in the game's directory. Dependency checking identifies missing libraries and suggests additional installations when required. Users migrating from Minion can import their existing managed addon collections. Optional automatic updates keep Tamriel Trade Centre pricing information and HarvestMap data current. Its interface offers light and dark themes for different preferences. Built with Rust, the application runs on Windows, macOS, and Linux, including Steam Deck devices. It provides a cross-platform alternative to Java-based addon managers.
    Downloads: 1 This Week
    Last Update:
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  • 23
    Anarchy Online Item Assistant (AOIA) is an application you keep running alongside Anarchy Online when you play. It will keep track of all your items for all your toons in a local database, and lets your browse and search for items easily.
    5.0 out of 5 stars 8 Reviews
    Downloads: 4 This Week
    Last Update:
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  • 24
    NCLA - Neverwinter Combat Log Analyzer

    NCLA - Neverwinter Combat Log Analyzer

    NCLA - анализатор логов Neverwinter Online.

    NCLA is a free combat log analyzer for Neverwinter Online. It helps players turn raw game logs into clear and useful statistics for both solo and group gameplay. The program can analyze total damage, DPS, healing, incoming healing, survivability, and many other combat metrics. You can inspect the full combat log, apply flexible multi-level filters, analyze specific targets, compare players, view charts, and track party performance in detail. NCLA is built specifically for Neverwinter, so it focuses on the mechanics and data that matter to the game’s community. The application supports Russian and English and does not require installation. History of changes in the discord channel "Soft NCLA" of TheWolves Guild https://discordapp.com/invite/8w5m6uNDpA My Discord: alterego_zhen_a
    5.0 out of 5 stars 2 Reviews
    Downloads: 6 This Week
    Last Update:
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  • 25

    wow explorer

    a wow model explorer

    a WPF and Directx9, Directx11, OpenGL implementation of model explorer of world of warcraft. Multi locale(not only zhCN), English and Chinese UI Interface, Warlords of Draenor 6.0 Support, running on Windows x86, x64 version(xp and later).
    4.8 out of 5 stars 4 Reviews
    Downloads: 4 This Week
    Last Update:
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