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: 221 This Week
    Last Update:
    See Project
  • 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: 67 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: 30 This Week
    Last Update:
    See Project
  • 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.
    Leader badge
    Downloads: 24 This Week
    Last Update:
    See Project
  • 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.
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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: 10 This Week
    Last Update:
    See Project
  • 6
    Planetmule
    Free-to-play multiplayer version of the 8-bit classic M.U.L.E.
    Leader badge
    Downloads: 22 This Week
    Last Update:
    See Project
  • 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: 18 This Week
    Last Update:
    See Project
  • 8

    Gametable

    Multi-user whiteboard emphasizing simplicity.

    Gametable (also known as GamenianTabele), is a Java-based shared whiteboard and chat client. It is designed primarily to provide an online tabletop interface. Draw directly, or place images, that all connected users can see and manipulate. RNG/dice functions supported, infinite table size, a few Z-order layers, pointer tools visible to everyone connected, stand along host server, and basic tagging and drawing tools. It specializes in simplicity, virtually no learning curve, and ease of use. Shared image files auto-propagate to other users (and only images, no other file type will propagate), which allow them to use a local cache to view shared spaces.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 9
    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.
    Downloads: 9 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
    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: 3 This Week
    Last Update:
    See Project
  • 11
    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: 7 This Week
    Last Update:
    See Project
  • 12
    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: 4 This Week
    Last Update:
    See Project
  • 13
    JayMontana36 Pre-Built Minecraft Servers

    JayMontana36 Pre-Built Minecraft Servers

    Free Minecraft Servers tweaked for a lag-free experience!

    Free Minecraft Servers that come with a few of the most popular used plugins pre-installed by default, all preconfigured for a lag-free experience! - Optimized for low-end systems (beast-like on medium to high end systems). - Low RAM usage/requirements/consumption. - CrossCompatible between many different versions of Minecraft. - One Server Supports all 1.4.x, 1.5.x, 1.6.x, 1.7.x, 1.8.x, 1.9.x, 1.10.x, 1.11.x, 1.12, 1.12.2 clients all at the same time. - Fully Supports Linux, Windows, and Mac OS X. - Officially supports the MineOS Web UI created and owned by Will Dizon (this project however, is not affiliated with the MineOS Web UI nor William Dizon).
    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: 2 This Week
    Last Update:
    See Project
  • 15
    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
  • 16
    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: 2 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: 2 This Week
    Last Update:
    See Project
  • 18
    This is a 2D shooting action game for two players for GNU/Linux, Mac OS X, and Windows. Current release written in C++ using the SDL library with its extensions. Next release will be in Java.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 19
    [en] Little turn-based strategy game based on Pendulous shareware rules (whose best version has disappeared). [fr] Petit jeu de stratégie en tour par tour basé sur les règles du jeu payant Pendulous (dont la version la plus aboutie a disparu).
    Downloads: 1 This Week
    Last Update:
    See Project
  • 20
    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: 1 This Week
    Last Update:
    See Project
  • 21

    FU-18-newsuperyoshi

    Fly, bomb, shoot sh*t.

    FU-18 is an open source, micro-transactioned arcade style game. If you would like to join the project, shoot me an email at newsuperyoshi@icloud.com and I'll get back to you.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 22

    Hiukuss-SAMP

    Just a repo for my filterscripts and includes

    This is a page for filterscripts created by me (Hiukuss) and gamemodes (includes too!) All files uploaded are in-fact Open Source due to the fact that I release the sources itself (rules on the SA-MP forums) I do not mind if you modify it for your own use, but please honor me, the creator and DO NOT REUPLOAD OR CLAIM AS YOUR OWN. I hope you understand :) ~Hiukuss
    Downloads: 1 This Week
    Last Update:
    See Project
  • 23
    This is a program for Oware and Reversi (Othello) for J2ME/Cell and (PlamOS with IBM WME VM). Oware (popular in Africa) is a Mancala game suitable for adults. Reversi (Othello) is included. Based on mobilesuite (on sourceforge) with modifications.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 24
    SuperLauncher is an alternative launcher for Minecraft
    Downloads: 1 This Week
    Last Update:
    See Project
  • 25
    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
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