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

  • Our Free Plans just got better! | Auth0 Icon
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  • Build Securely on AWS with Proven Frameworks Icon
    Build Securely on AWS with Proven Frameworks

    Lay a foundation for success with Tested Reference Architectures developed by Fortinet’s experts. Learn more in this white paper.

    Moving to the cloud brings new challenges. How can you manage a larger attack surface while ensuring great network performance? Turn to Fortinet’s Tested Reference Architectures, blueprints for designing and securing cloud environments built by cybersecurity experts. Learn more and explore use cases in this white paper.
    Download Now
  • 1
    Crossfire RPG game

    Crossfire RPG game

    Cooperative multiplayer graphical RPG and adventure game

    Crossfire is a free, open-source, cooperative multi-player RPG and adventure game. Since its initial release, Crossfire has grown to encompass over 150 monsters, 3000 areas to explore, an elaborate magic system, 13 races, 15 character classes, and many powerful artifacts scattered far and wide. Set in a fantastical medieval world, it blends the style of Gauntlet, NetHack, Moria, and Angband.
    Downloads: 69 This Week
    Last Update:
    See Project
  • 2
    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, 21 kinds of monsters, 58 different items and 100 quests. Test server is up! Just download and run!
    Leader badge
    Downloads: 15 This Week
    Last Update:
    See Project
  • 3
    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.
    Downloads: 9 This Week
    Last Update:
    See Project
  • 4

    ArmoryRaider

    PHP WOW Battle.net Armory Raider

    ATTENTION, THIS PROJECT HAS BEEN MOVED TO GITHUB (https://github.com/killoBillo/ArmoryRaider) _____ _____ _____ _____ _____ ArmoryRaider is a calendar of events suitable for the planning of WOW Guild raids. It retrieves characters data directly from the Battle.net Armory through PHP WoW Battle.net Armory API (https://sourceforge.net/projects/wowarmoryapi/). ArmoryRaider is coded in PHP using Yii framework, so you can use any DBMS you like, you just have to manage the configuration file according to your needs. Read the documentation for further informations. Advices are welcome. Change log: https://sourceforge.net/p/armoryraider/wiki/Changelog/ NB: This is my first sourceforge project, so let me know if something is wrong. Thanks :]
    Downloads: 0 This Week
    Last Update:
    See Project
  • MongoDB Atlas | Run databases anywhere Icon
    MongoDB Atlas | Run databases anywhere

    Ensure the availability of your data with coverage across AWS, Azure, and GCP on MongoDB Atlas—the multi-cloud database for every enterprise.

    MongoDB Atlas allows you to build and run modern applications across 125+ cloud regions, spanning AWS, Azure, and Google Cloud. Its multi-cloud clusters enable seamless data distribution and automated failover between cloud providers, ensuring high availability and flexibility without added complexity.
    Learn More
  • 5
    Coffeemud Mudlet Mapper

    Coffeemud Mudlet Mapper

    A mapping plugin for Mudlet that works with CoffeeMUD

    A mapping plugin for Mudlet that works with CoffeeMUD. Written in Lua and created by Valdebrick
    Downloads: 0 This Week
    Last Update:
    See Project
  • 6

    Crossfire-Weather-Patch

    Crossfire RPG Game Weather Patch -- Now a branch on the official repo!

    This patch set has been migrated into a branch in the Crossfire RPG Game repository, where it will hopefully have more eyes on it and progress faster than the speed of me. See https://sourceforge.net/p/crossfire/crossfire-server/ci/weather/tree/ for the current server code, https://sourceforge.net/p/crossfire/crossfire-maps/ci/weather/tree/ for the map changes, and https://sourceforge.net/p/crossfire/crossfire-arch/ci/weather/tree/ for the archetype changes.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 7
    This piece of software help you to calculate the profit of the arbitrage on the auction house in Diablo 3. In other words it helps you to calculate how much you will earn if you buy on item from one of the auction houses (gold or real money), and then sell it on the other auction house.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 8
    A self-guiding Flash front-end with a 100% Java-based XML parsing gateway that combines the look and functionality of a streaming game client with a background processing system for handling distributed data packages.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 9
    Lame MUD

    Lame MUD

    A lame multi-user dungeon engine.

    Lame MUD is planned to be an engine for virtual text based worlds (as opposed to the seizure inducing modern ARPG/MMORPG titles). Currently, it's still in pre-alpha. The sources available for download are not even remotely resembling anything like a MUD. There is a network layer established and the server acts as a one room chat server.
    Downloads: 0 This Week
    Last Update:
    See Project
  • Build Securely on Azure with Proven Frameworks Icon
    Build Securely on Azure with Proven Frameworks

    Lay a foundation for success with Tested Reference Architectures developed by Fortinet’s experts. Learn more in this white paper.

    Moving to the cloud brings new challenges. How can you manage a larger attack surface while ensuring great network performance? Turn to Fortinet’s Tested Reference Architectures, blueprints for designing and securing cloud environments built by cybersecurity experts. Learn more and explore use cases in this white paper.
    Download Now
  • 10
    MirageVB6

    MirageVB6

    Visual Basic 6 2D online adventure game engine

    Welcome to MirageVB6. --------------------------- This version of Mirage Source is a continuation from Mirage Source 5. This new release includes support for SQLite, SHA256 password hashing, and control pad support for moving, attacking, and picking up items.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 11
    PTkEI2ng

    PTkEI2ng

    New version of PTkEI2, the cross-platform GUI client for Wolfpack Empi

    New version of PTkEI2, the cross-platform GUI client for Wolfpack Empire
    Downloads: 0 This Week
    Last Update:
    See Project
  • 12
    O projeto tem como objetivo promover o estudo e o desenvolvimento dos componentes para uma engine genérica de jogos. O foco não é produzir uma engine comercial, mas sim promover o estudo de conceitos baseados em OO para games.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 13
    !!!NOTE: THIS PROJECT HAS MOVED TO GITHUB!!! RingMUD is an extensible MUD (multi-user dungeon) engine and utility set that draws inspiration from popular tabletop RPG systems and adds a dash or two of its own flavor.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 14
    The RockMUD project is a new MUD codebase written in C and Lua. The goal of RockMUD is to create a stable C MUD engine that can be easily expanded and customized using the Lua scripting language. RockMUD is based off of SocketMUD by Brian Graverson.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 15
    This is my current project. The base idea of the game is currently Diablo 2 LOD, but it should evolve. If you would like to join, contact me at virgul.thriss@gmail.com. Most help needed is around Art, Story Line, names, Ideas, and Beta Testing.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 16
    ThudNG2

    ThudNG2

    Updated client for Battletech MUX game servers

    This is a nice GUI client for the Battletech MUX. It works on most platforms as it is written in Java. Makes combat much more enjoyable than plain text.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 17
    Thump (BattleTech MUX Map Creator)

    Thump (BattleTech MUX Map Creator)

    Map creator for the BattlleTech MUX

    Map creator for the BattlleTech MUX
    Downloads: 0 This Week
    Last Update:
    See Project
  • 18
    VideoGames Linux Project (vglp) is a project born appositely to make videogames to the platform Gnu/Linux.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 19

    cf-dynamic-address

    Dynamic IP retrieval to report to Crossfire Metaserver

    The implementations of DNS and the Crossfire metaserver expect a range of known IP addresses for an address to be in. The Crossfire metaserver appears to expect a resolvable domain name or a static IP. It appears, though, that by determining the Crossfire server's public IP address before each time it reports to the metaserver, we should be able to have a server hosted on a dynamic IP range controlled by an ISP, without having to set up a static IP nor a DNS entry. This would have the net effect of a few stale entries occasionally lingering in the metaserver itself, but those will be removed like any other server that stops sending updates to it, bring removed after a set amount of time. This project is an attempt to implement that as a workaround, because I don't feel like interacting with my ISP nor DNS providers.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 20

    crossfire-arch-retro

    Extra image set for Crossfire RPG Game

    A 24x24 tileset intended for use with Crossfire RPG Game servers. Many images were pulled from old versions of the game (0.92.0 was a specific baseline). As of Crossfire RPG Game 1.75.0, the GTK2 client supports non-32x32 tileset sizes. The tileset has not been tested on JXClient, so it is unclear whether it works there or not.
    Downloads: 0 This Week
    Last Update:
    See Project
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