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.

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  • 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
    Downloads: 188 This Week
    Last Update:
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  • 2
    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, 14 races, 16 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
  • 3
    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.
    Downloads: 35 This Week
    Last Update:
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  • 4
    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.
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    Downloads: 18 This Week
    Last Update:
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  • 5
    2D isometric MMORPG using the SDL framework. Daimonin offers a free public server at https://www.daimonin.org . A Unity client is also in active development.
    Downloads: 8 This Week
    Last Update:
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  • 6
    Risk
    Risk has been renamed to Domination.
    Downloads: 8 This Week
    Last Update:
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  • 7

    Thermos

    MinecraftForge Server Software implementing the Spigot/Bukkit API

    Minecraft Forge Server Software implementing the Spigot/Bukkit API, formerly known as Cauldron/MCPC.
    Downloads: 22 This Week
    Last Update:
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  • 8
    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: 9 This Week
    Last Update:
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  • 9
    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: 8 This Week
    Last Update:
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    Easy-to-use online form builder for every business.

    Create online forms and publish them. Get an email for each response. Collect data.

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  • 10
    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: 8 This Week
    Last Update:
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  • 11
    Multiverse

    Multiverse

    Open Source Virtual World and MMOG Development Platform

    3D Client (Windows), Server, and Tools to easily create massively multiplayer games and virtual worlds. If you want to contribute to the source code please go to https://github.com/multiversemmo/MultiversePlatform
    Downloads: 3 This Week
    Last Update:
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  • 12
    LandsDiscordBot

    LandsDiscordBot

    Adds Discord Functionality to Lands.

    This plugin adds Discord functionality to the spigot plugin Lands. It allows land owners to create a channel for their land so they can chat from Discord with their land members online at the Minecraft server. Also you can view top lands in Discord, receive land and war notifications and more to come.
    Downloads: 6 This Week
    Last Update:
    See Project
  • 13
    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
    Downloads: 2 This Week
    Last Update:
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  • 14
    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
    Downloads: 1 This Week
    Last Update:
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  • 15
    Extinction Minijeux

    Extinction Minijeux

    Extinction-minijeux.fr est une plateforme de minijeux

    Extinction-MiniJeux.fr est la nouvelle plateforme d'Extinction.fr. Retrouvez les 3 MiniJeux emblématiques : Aaaah, Bouboum et Forteresse.
    Downloads: 1 This Week
    Last Update:
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  • 16

    GameBrowser

    Simple server list with direct connect via scripts.

    This tool has been created to easily start and connect to game Servers. It is possible to connect to EVERY game that uses the installed protocols. There are games that don't support direct connect (connecting with start parameters). In this case you can only view the servers status and start it without connecting. You can use the scriptarea to manage you game configurations, start with certain parameters or just start your musicplayer. This works by using the script defined for the server, that are executed by double clicking a server. The user has the possibility to write his own script in the AddServer dialog. You can define a standard script for a game in the options so it will be the standard content for new servers. The script will be executed as a shell script like any other on your system. In the player list you can quickly see who is online, and who is a bot (bots are marked red).
    Downloads: 1 This Week
    Last Update:
    See Project
  • 17
    MechFight
    MechFight is a new implementation of the Amigagame Mechforce. In this tactical game groups of warriors fight with heavy machines (up to 100 tons), until defeat or even death in a thermonuclear explosion of their engines.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 18
    Web Based Travian Companion T3.5 helps us one-on-one when we plays the Travian game. It will relieve us from waiting for a task to come. We focus on designing and pursuing the strategic goals, and sleep well in the night. T3.5 is a stable product.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 19
    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.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 20
    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:
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  • 21
    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:
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  • 22
    Arcanium
    Arcanium is a fantasy multiplayer realtime strategy game. It has been developed as a student project at university and is now an open source project.
    Downloads: 0 This Week
    Last Update:
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  • 23
    A turn-based, 4X strategy game with some real-time tactical and also role playing aspects. I've been planning this game on paper for years and am now starting to code (Jan. '11)
    Downloads: 0 This Week
    Last Update:
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  • 24
    Astronoid is a high-speed intense Galactic Shoot & Race multiplayer game playable on the Internet with an unequalled connectivity, which, after some simple arcade-like fun at the beginning, unveils a depth as impressive as the top racing simulation games
    Downloads: 0 This Week
    Last Update:
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  • 25
    An exploration into 2D networked game design using Java.
    Downloads: 0 This Week
    Last Update:
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