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.

  • Auth0 for AI Agents now in GA Icon
    Auth0 for AI Agents now in GA

    Ready to implement AI with confidence (without sacrificing security)?

    Connect your AI agents to apps and data more securely, give users control over the actions AI agents can perform and the data they can access, and enable human confirmation for critical agent actions.
    Start building today
  • Skillfully - The future of skills based hiring Icon
    Skillfully - The future of skills based hiring

    Realistic Workplace Simulations that Show Applicant Skills in Action

    Skillfully transforms hiring through AI-powered skill simulations that show you how candidates actually perform before you hire them. Our platform helps companies cut through AI-generated resumes and rehearsed interviews by validating real capabilities in action. Through dynamic job specific simulations and skill-based assessments, companies like Bloomberg and McKinsey have cut screening time by 50% while dramatically improving hire quality.
    Learn More
  • 1
    Impostor

    Impostor

    An open source reimplementation of the Among Us Server

    Impostor is an open source reimplementation of the Among Us Server, written in C#. It is among the first Among Us private servers with support for Steam, Itch, Android and iOS. It is a full replacement of the game's official server, so you can expect all of the game's features to be included, and the same fun playing experience. The difference of course is that you get to play on a private and secure server. Impostor has plugin support as well as a server-sided anticheat feature. You also have the option of playing on a server hosted by someone else.
    Downloads: 2 This Week
    Last Update:
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  • 2

    coldev

    C/C++ , PHP, PYTHON, 3D ENGINES, CHROME NATIVE CLIENT

    + C/C++ and PHP projects, Python and Others + 3D ENGINES + Videogames Projects based in Bennugd http://www.bennugd.org Web Page https://coldev.sourceforge.io/
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    Downloads: 5 This Week
    Last Update:
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  • 3
    Human AI Net

    Human AI Net

    a Human and Artificial Intelligence Network

    We are going to teach eachother how to build AI and new kinds of game objects in this network using intuitive dragAndDrop. Its going to be a space for experimenting with fun and useful tools in new ways. Version 0.8.0 has some advanced components that will be working soon. The plan is a massively multiplayer space where we design, evolve, and play with game objects and do AI research together which controls those game objects along with directly playing the games. The main data format is, from xorlisp which is also in progress, immutable binary forest nodes, so if millions of people build that together nobody can damage or change anyone else's data since its all constant. You dont change variables. You create new data that points at existing constant data, as deep as you need it. I have mindmap lists, definitions, and 2 editable properties working that way with 2 kinds of event listeners that work locally. Its not a networked system yet, but the datastructs are ready to scale with it.
    Downloads: 2 This Week
    Last Update:
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  • 4
    BC2Conn
    ...is a PHP written class for developers who want to build their own webinterfaces to administrate their Bad Company 2 gameservers. It's also possible to create webpages just with reading server information so that you can display them on your site.
    Downloads: 0 This Week
    Last Update:
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  • Automated RMM Tools | RMM Software Icon
    Automated RMM Tools | RMM Software

    Proactively monitor, manage, and support client networks with ConnectWise Automate

    Out-of-the-box scripts. Around-the-clock monitoring. Unmatched automation capabilities. Start doing more with less and exceed service delivery expectations.
    Learn More
  • 5
    BF3Conn

    BF3Conn

    Battlefield 3 Remote Administration and Information PHP Class

    ...is a PHP written class for developers who want to build their own webinterfaces to administrate their Battlefield 3 gameservers. It's also possible to create webpages just with reading server information so that you can display them on your site. This project is based on BC2Conn by jlnnn
    Downloads: 0 This Week
    Last Update:
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  • 6
    CS:GO Multi Script

    CS:GO Multi Script

    Multi scripts for CS:GO that do just about everything

    I have not posted any of the code yet, I'm working on it locally then will push everything. This is not to be used in game (maybe deathmatch only :stuck_out_tongue:), but rather is meant to have some with the features that Java provides. I included all source so that you can see what I used. This is a great project to learn about global event listener, JRobot, JavaFX, etc... Most of the people said this just makes it harder to play the game, so it's not fantastic. The only thing I would say is worth getting banned over is the "camping" trigger bot and the crosshair overlay. The other features don't really provide an unfair advantage in my opinion. Either way, enjoy :)
    Downloads: 0 This Week
    Last Update:
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  • 7
    Cux Bomberman

    Cux Bomberman

    JAVA websocket implementation for a bomberman-like game

    This application uses JAVA and Glassfish server to provide an active and simple webSocket server for an online, multiplayer bomberman-like game. It only requires a running glassfish server to deploy the application on and a MySQL database server. After deployment and first run, anyone can access your webserver, register and play the game, using only a web browser that has built-in support for webSockets
    Downloads: 0 This Week
    Last Update:
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  • 8
    Gameserver Installer/Startscripts Linux

    Gameserver Installer/Startscripts Linux

    Gameserver Installer/Startscript for HL1 and HL2 Games

    Gameserver Installation Scripts for Linux Supported Games HL1 Engine -Counter-Strike 1.6 -Counter-Strike: Condition Zero -Day of Defeat Supprted Games HL2 Engine -Counter-Strike: Source -Counter-Strike: Global Offensive -Team Fortress 2 -Day of Defeat: Source -Left 4 Dead 2 -Garrys Mod Minecraft -Minecraft Server Version 1.6.1 Supported Languages -German -English
    Downloads: 0 This Week
    Last Update:
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  • 9
    NoobLauncher
    NoobLauncher is a great set of cubescript applications extending a sauerbraten client: wheelzoom, hifriends, autologin, musicplayer, movierecorder and many more.
    Downloads: 0 This Week
    Last Update:
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  • Comet Backup - Fast, Secure Backup Software for MSPs Icon
    Comet Backup - Fast, Secure Backup Software for MSPs

    Fast, Secure Backup Software for Businesses and IT Providers

    Comet is a flexible backup platform, giving you total control over your backup environment and storage destinations.
    Learn More
  • 10
    Tortoise Multiplayer Online Game(MOG) Framework will be a flexible framework that can be molded to any 2D Gaming Needs.
    Downloads: 0 This Week
    Last Update:
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  • 11
    ZibbPatch
    ZibbPatch is an easy to edit, lightweight patching program that allows you to spread your patches quick across your players. And with it's helper, it's easy to update the patcher remotely.
    Downloads: 0 This Week
    Last Update:
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  • 12
    This system is designed to synchronize objects over network using a 1 server : n clients topology. In contrast to Object Replication system used in Zoidcom or RakNet this solution is developed to be very scalable using multiple threads/cpus=> MMO ready.
    Downloads: 0 This Week
    Last Update:
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  • 13
    Borg Server (c# MMORPG server framework)
    The Borg project is a framework for building MMORPG systems entirely written in c# . Borg provides the infrastructure and development framework with features like account authentication & management, message delivery, client and shared libraries... Update: this project is not active. You can still use it as a solid base for other projects or research.
    Downloads: 0 This Week
    Last Update:
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