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.

  • ERP System for Manufacturing Icon
    ERP System for Manufacturing

    ProShop dramatically improves efficiency because it focuses on improving the execution of manufacturing shop processes.

    ProShop is a paperless and web based shop management, ERP, MES and QMS system for manufacturing companies in regulated industries. ProShop was built on the shop floor of a machine shop for nearly 20 years, and it's not like anything you've seen. Built to manage the complex manufacturing environment better than anything else on the market - by an order of magnitude. Never before has there been a system that gives you such insight into every detail of your manufacturing company. ProShop is best described as a Digital Manufacturing Ecosystem (DME). It is 100% paperless, and combines the features found in ERP, MES, QMS, CMMS, and other software categories for machine shops, fabricators, job shops, contract manufacturers and others in regulated industries who need tight controls on their process and want exacting and timely information to make the best and most profitable decisions.
  • Property Management Software Icon
    Property Management Software

    We believe property management software should be as powerful as you need it to be, but also as easy to use as possible.

    Property Matrix is the world’s most customizable property management software solution. Powerful, user-friendly, and comprehensive, this cloud-based software solution can be accessed anytime and anywhere. Property Matrix offers a customizable reporting and class accounting system to help property managers run their businesses smoothly and cost-efficiently. From online rental postings and tenant screening to building maintenance and property accounting, property management just got easier with Property Matrix.
  • 1
    BZFlag - Multiplayer 3D Tank Game
    OpenSource OpenGL Multiplayer Multiplatform Battle Zone capture the Flag. 3D first person tank game. Download the latest version at https://www.bzflag.org/downloads/ Development has moved to Github: https://github.com/BZFlag-Dev/bzflag (The SourceForge binary releases for Windows and macOS are very outdated. Please download the latest version from our website.)
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    Downloads: 2,339 This Week
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    Nexuiz is a multiplayer first-person shooter. It is distributed under the GNU General Public License (GPLv2). Version 1.0 was released on May 31, 2005. The current version is, 2.5.2.
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    Downloads: 202 This Week
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  • 3
    Opticraft is a custom server for Classic Minecraft multiplayer developed in python. It makes use of no extra dependencies, it is not based off Myne, and requires python 2.6. It aims to be light weight as well as easy to setup and use.
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    Downloads: 407 This Week
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  • 4
    Odamex

    Odamex

    Odamex is a free, cross-platform, modern client-server Doom engine

    Odamex is a free, cross-platform (Mac, Windows, Linux) modification of the Doom engine that allows players to easily join servers dedicated to playing Doom online. The goal of Odamex is to add enhancements to Doom while still retaining that "classic Doom feel" we all know and love about the original game.
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    Downloads: 267 This Week
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  • Digital Signage Software and Kiosk Software | FrontFace Icon
    Digital Signage Software and Kiosk Software | FrontFace

    The Easy-to-Use, Flexible and Affordable Software Solution for Professional Digital Signage and Kiosk Applications!

    FrontFace can display any kind of media format, no matter whether you want to display text, pictures, photos, PDFs, videos, news ticker tapes or even entire Web pages (HTML5).
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    TripleA Maps

    TripleA Maps

    A collection of all maps and games made for the TripleA game engine

    http://www.triplea-game.org/
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    Downloads: 116 This Week
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  • 6
    Scrabble3D
    <b>The project is continued at https://github.com/Scrabble3D. Find the latest program version under Binaries.</b> Scrabble3D is a highly customizable Scrabble game that not only supports Classic Scrabble and Superscrabble but also 3D games and own boards. You can play local against the computer or connect to a game server to find other players.
    Downloads: 133 This Week
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  • 7
    America's Army 2.5 Assist

    America's Army 2.5 Assist

    Classic America's Army

    A GUI client application for Downloading Installing and Playing Americas Army 2.5 on Windows, Mac and Linux with a new custom authorization system. On the server side a Desktop server manager for Windows, Mac and Linux and a Command line dedicated server manager for Windows and Linux. Backend server components include a replacement authorization system using the Battletracker account & stats database and a PunkBuster log streaming server which records players possible cheating activities.
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    Downloads: 76 This Week
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  • 8
    Linux Air Combat

    Linux Air Combat

    Combat Flight Simulator for LINUX. WW2. Network and VOIP. Open-source.

    WW2 Combat Flight Simulator. Free. Current Version: 9.75. This is now the world's leading open-source combat flight sim for LINUX. Linux Air Combat ("LAC") was derived from the classic "gl-117" game, after a huge re-write to create a far more realistic plane simulator. LAC runs on almost any desktop LINUX system (even Steam Deck & Raspberry Pi) and generates smooth, high-performance flight. Clean, open source code provides an easy option to compile it yourself, or use our precompiled executable in "AppImage" format to eliminate compiling on all popular X86 LINUX distros. If you don't want to compile from source code, just download the AppImage and run it! Control simulated flight with mouse and keyboard, console game controller, or joystick. Learn all about LAC from our primary, official Web Page: http://askmisterwizard.com/2019/LinuxAirCombat/LacOnlineDocs.htm Recent vid clips: https://www.youtube.com/playlist?list=PL1IYes9MY6lKVUarE5wwKmwghs83Qjtz-
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    Downloads: 84 This Week
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  • 9
    Zod Engine
    Zod Engine is a remake of the 1996 classic game by Bitmap Brothers called Z. Z is a capture the flag style RTS. In this game you command robots and vehicles with the purpose of destroying the enemy's fort. Please visit http://zzone.lewe.com/ for more
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    Downloads: 79 This Week
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  • The Rewards as a Service (RaaS&reg;) API is a robust digital gift card API built to power rewards and incentives in today&rsquo;s apps and platforms. Icon
    We're the rewards and payments people. We bundle easy-to-use technology, desirable rewards, and expert service to help companies get the most out of their reward and incentive programs—from customer loyalty and employee engagement to wellness and research participation. With our leading reward-delivery technology, customers can instantly deliver digital gift cards to their recipients, maximizing impact and driving real business results.
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    0 A.D.

    0 A.D.

    0 A.D. is a free, open-source, cross-platform real-time strategy game.

    0 A.D. (pronounced "zero ey-dee") is a cross-platform real-time strategy (RTS) game of ancient warfare. It's a historically-based war/economy game that allows players to relive or rewrite the history of ancient civilizations, each depicted at their peak of economic growth and military prowess.
    Downloads: 55 This Week
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  • 11
    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**
    Downloads: 48 This Week
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  • 12
    SpaceZero

    SpaceZero

    A 2D Real Time Strategy space combat game.

    SpaceZero is a RTS 2D space combat, single and multiplayer (two players by now) net game. Your objective is to conquer all space. At the starting point the player owns a spaceship which has landed on a planet. Your first task is to acquire new spaceships and find new planets in the Galaxy.
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    Downloads: 71 This Week
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  • 13
    Fast 2d tank arcade game with multiplayer and split-screen modes.
    Downloads: 48 This Week
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  • 14
    FreeCS

    FreeCS

    FreeCS is a free-software reimplementation of Counter-Strike 1.5.

    FreeCS is a free-software reimplementation of Counter-Strike 1.5 running on the FTEQW engine. All it is, is a game-logic re-implementation in QuakeC, an architecture independent programming language. FreeCS is not a game-engine as it relies on FTEQW (released under the GPL V2). All this makes it possible to play FreeCS on virtually any platform! No DRM! No third-party accounts! Just download, play, contribute. The game-logic is written by me with help of twhl.info's wiki. It has since been incorporated into the Nuclide project, which re-implements more than just CS 1.5.
    Downloads: 43 This Week
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  • 15
    Ur-Quan Masters HD

    Ur-Quan Masters HD

    Ur-Quan Masters High Definition

    Ur-Quan Masters HD Mod. An HD remake of Star Control 2. It's the full Ur-Quan Masters game but also featuring a high resolution mode, new features, & new artwork.
    Downloads: 39 This Week
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  • 16
    TKD Scoring Wi-Fi

    TKD Scoring Wi-Fi

    TKD Scoring Wi-Fi Server supporting Android and IPhone clients

    Scoring Wi-Fi PRO system was created by Taekwondo people like you and we use the scoring system in all our classes, just like you We created this app few years ago to provide an effective, professional low cost solution with the same benefits and feeling experience, or even providing a better experience than any existing wired professional tournament solution The success of the application in our Taekwondo sparring classes where our members described the application as “Holy crap this is incredible! This looks even more professional and easier to use than any of the programs I’ve ever seen used at comps.” and “Hey... just installed everything and it’s unreal! Everything works perfectly, looks great!” encouraged us to make it public for everybody Like any scoring system the “TKD Scoring Wi-Fi” system has few basic components: *TKD Scoring Wi-Fi Server(PC or Android) *TKD Scoring Wi-Fi Client(Android or IPhone) *TKD Scoring Wi-Fi Remote Score Display (Android)
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    Downloads: 83 This Week
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  • 17
    Kirstens Viewers
    Opensource Created Custom Viewers For Virtual Worlds like SecondLife
    Downloads: 44 This Week
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  • 18
    Egoboo

    Egoboo

    Free 3D Roguelike action RPG

    Egoboo is a working cool 3D dungeon crawling game in the spirit of nethack. Currently it is supported by Windows, Linux and Mac.
    Downloads: 34 This Week
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  • 19
    Performous

    Performous

    The All-in-One music game

    Performous is an open-source rhythm/performance platform that contains singing, guitar/bass playing, drumming and dancing all in one game.
    Downloads: 26 This Week
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  • 20
    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: 31 This Week
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  • 21
    Foobillard++
    An OpenGL Billard Game based on foobillard 3.0a with patches, new features (hud, jumpshots, correct detection of lost balls, more sound and graphics etc). Optimized for touch. New designed mouse / touch-control. On Facebook: www.facebook.com/Foobillardplus Some Videos: http://www.youtube.com/user/foobillardplus/videos
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    Downloads: 28 This Week
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  • 22
    ATC-pie

    ATC-pie

    Air traffic control tower and radar simulator (solo + multi-player)

    ATC-pie is an air traffic control simulation program. It features solo, multi-player and teacher-student sessions, rendering 3D views of airports through FlightGear. It is essentially designed for realism, and simulates real-life ATC tasks and equipment such as strip racks and sequence management, handovers to/from neighbouring controllers, flight plans, primary & secondary radars, RDF, CPDLC, ATIS recording...
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    Downloads: 30 This Week
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  • 23
    Manic Digger is a public domain 3d block-building game similar to Minecraft.
    Downloads: 20 This Week
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  • 24
    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: 3 This Week
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  • 25
    AssaultCube Reloaded

    AssaultCube Reloaded

    A fun realistic multiplayer free-and-open-source first-person-shooter!

    ACR is a fun realistic multiplayer free-and-open-source first-person-shooter! This project has moved to GitHub. A mirror of releases is here.
    Downloads: 16 This Week
    Last Update:
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