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

  • Ship Agents Faster Icon
    Ship Agents Faster

    Transform your applications and workflows into powerful agentic systems at global scale.

    Gemini Enterprise Agent Platform lets you rapidly build, scale, govern and optimize production-ready agents grounded in your organization's data. The platform enables developers to build custom or pre-built agents for virtually any use case. New customers get $300 in free credits.
    Start Free
  • $300 Free Credits to Build on Google Cloud Icon
    $300 Free Credits to Build on Google Cloud

    New customers can spin up VMs, build with AI, and query data at no cost.

    Put your $300 in credit toward real workloads, then keep building with free monthly usage for 20+ products. No commitment and no charge until you upgrade.
    Start Free
  • 1
    TripleA Maps

    TripleA Maps

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

    http://www.triplea-game.org/
    Leader badge
    4.8 out of 5 stars 61 Reviews
    Downloads: 256 This Week
    Last Update:
    See Project
  • 2
    Crossfire RPG game

    Crossfire RPG game

    Cooperative multiplayer graphical RPG and adventure game

    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.
    4.2 out of 5 stars 10 Reviews
    Downloads: 104 This Week
    Last Update:
    See Project
  • 3
    Colossus is a Java clone of the boardgame Titan, a turn-based fantasy wargame for 2-6 players. Each player moves stacks of creatures around a strategic board, recruiting more creatures and fighting enemy stacks on tactical maps.
    Leader badge
    4.5 out of 5 stars 8 Reviews
    Downloads: 33 This Week
    Last Update:
    See Project
  • 4
    MegaMek
    MegaMek is a networked Java clone of BattleTech, a turn-based sci-fi boardgame for 2+ players. Fight using giant robots, tanks, and/or infantry on a hex-based map. Development currently occurs on GitHub (see https://github.com/MegaMek). This SF page remains as a mirror and archive of the old issue trackers. The trackers are currently locked and new issues should be created on the GitHub page.
    5.0 out of 5 stars 33 Reviews
    Downloads: 12 This Week
    Last Update:
    See Project
  • Custom VMs From 1 to 96 vCPUs With 99.95% Uptime Icon
    Custom VMs From 1 to 96 vCPUs With 99.95% Uptime

    General-purpose, compute-optimized, or GPU/TPU-accelerated. Built to your exact specs.

    Live migration and automatic failover keep workloads online through maintenance. One free e2-micro VM every month.
    Start Free
  • 5
    Risk
    Risk has been renamed to Domination.
    4.8 out of 5 stars 16 Reviews
    Downloads: 7 This Week
    Last Update:
    See Project
  • 6

    Thermos

    MinecraftForge Server Software implementing the Spigot/Bukkit API

    Minecraft Forge Server Software implementing the Spigot/Bukkit API, formerly known as Cauldron/MCPC.
    Downloads: 13 This Week
    Last Update:
    See Project
  • 7
    Panzer Combat II

    Panzer Combat II

    Computer-assisted miniature tank game.

    Panzer Combat II is a multi-player voice and webcam enabled computer-assisted distributed miniature wargame of World War II tank combat. Firing is done by placing a webcam behind the aiming unit. Distance to target is computed using computer vision. Action inside the tanks is performed on the computer screen while battlefield strategy is played on the miniature terrain. Both camps can use a different laptop or tablet, the game will interconnect. You can try it online : http://server.panzercombat.com/PCII_Web/move.htm Look at battle reports : http://www.flickr.com/photos/panzercombatii Or watch a demo : http://www.youtube.com/watch?v=WcjfV8Odtss 100% CLEAN : http://games.softpedia.com/progClean/Panzer-Combat-II-Clean-95530.html
    5.0 out of 5 stars 2 Reviews
    Downloads: 3 This Week
    Last Update:
    See Project
  • 8
    Shoddy Battle (later known as Pokémon Lab) is a Pokémon simulator created by Cathy and bearzly and first released in July 2007. It allows users to play Pokémon matches against other people online. Shoddy Battle was highly influential on the game of competitive Pokémon because it was free and open source, scalable (700,000 battles per month during its peak), user customisable and extensible, and it provided unprecedented statistical data on player skill and Pokémon usage trends. Visit the web site for more information.
    Downloads: 7 This Week
    Last Update:
    See Project
  • 9
    Chess

    Chess

    A simple 2D-Chess

    A 2D-Chess with many features, such as a multiplayer server and many others. It will also show you all movement possibilites you have. Playing against Computer is in development
    Downloads: 6 This Week
    Last Update:
    See Project
  • Earn up to 16% annual interest with Nexo. Icon
    Earn up to 16% annual interest with Nexo.

    Let your crypto work for you

    Put idle assets to work with competitive interest rates, borrow without selling, and trade with precision. All in one platform. Geographic restrictions, eligibility, and terms apply.
    Get started with Nexo.
  • 10
    X-Core

    X-Core

    The original Xivio.com World Server Core

    Xivio.com was a commercial children's virtual world website created in 2006 by Gavin Conrad. This is the legacy World Server Java Core made available to the world to do with as it wishes.
    5.0 out of 5 stars 1 Review
    Downloads: 3 This Week
    Last Update:
    See Project
  • 11
    MINECRAFT2D hahn2014

    MINECRAFT2D hahn2014

    Minecraft side viewed game made in Java

    This started when one of my friends said I couldn't possibly make a full blown video game in Java, and know I have made Minecraft in Java and it consists of an inventory, blocks, and more!
    Downloads: 5 This Week
    Last Update:
    See Project
  • 12
    mod_MumbleLink

    mod_MumbleLink

    Positional Audio Communication for Minecraft with Mumble

    A Mod so that Minecraft now natively supports Mumble's positional audio feature. This means: Directional and positionally attenuated VOIP in relation to the game world. Please visit the Forum for information about the newest Version! Main Forum-Thread: http://www.minecraftforum.net/forums/mapping-and-modding/minecraft-mods/1272675 TheSkorm's Fork on GitHub: https://github.com/TheSkorm/mod_mumblelink Mumble: http://mumble.sourceforge.net Donations are greatly appreciated: https://sourceforge.net/donate/?user_id=2370023
    5.0 out of 5 stars 5 Reviews
    Downloads: 1 This Week
    Last Update:
    See Project
  • 13
    DEPRECATED! This program is replaced by Gamer's Proxy: https://sourceforge.net/projects/gamersproxy/ This is a simple Java program that holds UDP packets for a while before forwarding them to a target address. This can be used to simulate ping in video games.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 14
    Minecraft Name Checker

    Minecraft Name Checker

    Minecraft Name Availability Checker

    A Minecraft tool that checks to see if an account name is available or currently taken. The program is written entirely in Java and exported to an executable. A text file (one name per line) can also be read and checked. An output file "available.txt" will be created with usable names in the same directory as the selected read file.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 15
    Pinewood Derby Race Track 2

    Pinewood Derby Race Track 2

    Pinewood Derby Race Management

    Race Track is a Pinewood Derby Race Management Application. This is Cub Scout Pinewood Derby Timer Gate software . This is a rewrite by Steve Powell to the original Race Track Written by Scott Lewis in sourceforge. It supports racer registration, heat scheduling, electronic timer integration, and sound effect playback. It is written in Java and runs on any Java enabled platform. It is written to support either Arduino, Micro Wizard or The Judge Electronic Gates. It also supports Race Results screen, Multiple COM ports and manually entered race times. A start sensor may be used as well.
    5.0 out of 5 stars 2 Reviews
    Downloads: 1 This Week
    Last Update:
    See Project
  • 16
    The fortbattle player replays a fortbattle of the browser game "The West" (http://www.the-west.net). It displays the battle like the ingame flash player, but you can control the speed, skip rounds and see some statistics. Ingame use req. GreaseMonk
    5.0 out of 5 stars 2 Reviews
    Downloads: 1 This Week
    Last Update:
    See Project
  • 17
    Apozh

    Apozh

    A funny game for a good company similar to karaoke

    Apozh is a game similar to karaoke for 2 or more players. One player sings a song while the second player should not hear it, then the song is turned backwards, and the second player tries to sing it in the 'reversed' state. Once the second player finished singing, his recording is also turned backwards. Then the second player tries to guess, what was the first player's song. A sound card, microphone and speakers are required to play this game.
    3.5 out of 5 stars 2 Reviews
    Downloads: 3 This Week
    Last Update:
    See Project
  • 18
    An alternative/custom Minecraft server, written in Java, compatible with the original protocol. OpenCraft is built upon Apache MINA, SLF4J, Jython and XStream. The aim is to have features not in the official server distribution, like antigrief/scripting.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 19
    Planetmule
    Free-to-play multiplayer version of the 8-bit classic M.U.L.E.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 20
    dota-prototype
    Попытка реализовать доту в 2D графике.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 21
    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: 1 This Week
    Last Update:
    See Project
  • 22

    LoL RecItem Editor

    League of Legends Recommended Item Editor

    A little Java executable that help you managing recommended item in League of Legends.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 23
    Spaxe Hilk

    Spaxe Hilk

    Turn based tactical battle multiplayer game with Aliens and Marines

    Spaxe Hilk is a turn based tactical battle game, where marines battle it out against aliens. It's still early in development but coming on nicely. Spaxe Hilk is purely multiplayer and can be played with 2 or more people, depending on the mission. Watch a preview: http://www.youtube.com/watch?v=NdWXLmkPlJ0
    Downloads: 1 This Week
    Last Update:
    See Project
  • 24
    AirPirates

    AirPirates

    Steampunk airplanes dogfighting with zeppelins

    AirPirates - Krazy Kraut is the latest campaign in a steampunk dieselpunk teslapunk setting with amazing airplanes fighting zeppelins.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 25
    Multiplayer game based on the open free game http://www.fortressfigures.com/zombieplague/. Server implemented with twisted framework and client will use android
    Downloads: 0 This Week
    Last Update:
    See Project
  • Previous
  • You're on page 1
  • 2
  • 3
  • 4
  • 5
  • Next