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

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  • 1
    Chess Tournaments (Windows setup)

    Chess Tournaments (Windows setup)

    This is a chess program to help you to organize any chess tournaments

    This is a chess program to help you to organize any chess tournaments without using real chess rules, go to the support page of this program. The support page also has more information about this program. This program creates a "Data" folder to save settings of this program and notes of tournaments and players. Players could play with each other on a single device or playing by multiple devices by a network. This program shows squares that mouse points on them and that helps to prevent any mouse mistakes that happen when playing chess by computers! Although you could do moves by keyboard too. This program has all the functionalities that you need to manage a database, but you cannot analyze games by chess engines or creating variations for them. This program has all time controls in chess clocks, but if you need more complex time controls, you could use them as well, because this program allows you to start a game from any position by two different time controls.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 2
    A character generator for Call of Cthulhu, written in Java. Based on the 5'th edition ruleset.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 3
    Code Master

    Code Master

    A Game Similar to Mastermind

    You only have a limited number of attempts to crack the code master's secret code. Can you figure it out before you run out of chances?
    Downloads: 2 This Week
    Last Update:
    See Project
  • 4
    Verwaltung von Helden und Heldengruppen für das Rollenspielsystem DSA3.
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    Downloads: 2 This Week
    Last Update:
    See Project
  • MongoDB Atlas runs apps anywhere Icon
    MongoDB Atlas runs apps anywhere

    Deploy in 115+ regions with the modern database for every enterprise.

    MongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
    Start Free
  • 5

    DopeWars on Java

    Classic Dopewars for JAVA

    A FORK of an unfinished project implementing Classic Dopewars. In 2008 i did a little bit of work to it to try and learn some programming skills, now i'm creating a sourceforge project and a git repo in order to try and really do it this time. Features, XML location and drug descriptors at least half of the features of classic dopewars. meaning travel and drug dealing.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 6
    Java Swing implementation of John E Dell\'s old game of narcotics commerce. Make large sums of money by buying and selling drugs over a chosen period of time.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 7

    EloCalculator

    Elo Calculator - strictly implemented FIDE Rating Regulations

    This little tool might be helpful for chess players. The FIDE Rating Regulations (effective from 1 March 2024) are strictly implemented, therefore its calculation is hundred percent accurate. There is a Windows only version (Windows 7 or higher, .NetFramework 4.7.2 or higher (you don't need to worry about this with a current Windows 10 or 11)) ... and a Java version (Java 17 or higher).
    Downloads: 2 This Week
    Last Update:
    See Project
  • 8
    Empire is a multi-player game of global exploration, development and conquest. Players (nations) connect to a common server, and continue movement time units, move units and exchange correspondence with other players using mail, news or radio (chat). A t
    Downloads: 2 This Week
    Last Update:
    See Project
  • 9
    Fortune displays random text messages that are intended to be fun. It uses the original fortune-mod text database, but has a user-friendly interface. You can download versions for Dos, Windows, Linux and a Java-version for any OS.
    Downloads: 2 This Week
    Last Update:
    See Project
  • MongoDB Atlas runs apps anywhere Icon
    MongoDB Atlas runs apps anywhere

    Deploy in 115+ regions with the modern database for every enterprise.

    MongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
    Learn More
  • 10
    GT Generador de Torneos

    GT Generador de Torneos

    Tournament Generator Application (GT)

    This aplication creates tournaments for several different sports like football (soccer), basket, tennis, baseball, hockey, handball, water polo, chess, table tennis, voleyball, american football, curling, rugby, etc. Choose between league or play off. You can make reports on PDF of rounds, results, standings, calendar, postponed roudns, etc. Enjoy it! You can find the source code in https://github.com/Alvarielli/GTrepository ---------------------------------------------------------------------------- Con esta aplicación podras crear torneos para diferentes deportes como fútbol, baloncesto, tenis, béisbol, hockey, balonmano, waterpolo, ajedrez, tenis de mesa (ping pong), voleibol, fútbol americano, rugby, curling, etc. Elige entre liga o eliminatorias. Podrás crear informes en PDF del calendario, la clasificación, etc. Disfrútala
    Downloads: 2 This Week
    Last Update:
    See Project
  • 11
    GeneThello (read jə-ˈne-ˈthe-lō), is an acronym for genetic othello, an othello (reversi) playing program which based on Genetic Algorithm (GA). In principle GeneThello consist of an othello program and a genetic algorithm system.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 12
    J-Odyssey is a pseudo 1st person shooter game-demo, written in Java OpenGL bindings (JOGL). Parts of the code might be useful for learning to draw sprites and drawing a HUD overlay in JOGL, and adding windowing, controls and sound with Java.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 13
    JISO is a cross-platform, open source Isometric game. With similarities to Final Fantasy Tactics, and the uniqueness of a game written for fun rather than profit. Written with Java 1.6
    Downloads: 2 This Week
    Last Update:
    See Project
  • 14
    JMario is a side-scroll game, built in Java, based on Nintendo's Super Mario World. It's been developed by David Buzatto as part of his course conclusion work entitled "Utilization of Java Platform for 2D Game Development".
    Downloads: 2 This Week
    Last Update:
    See Project
  • 15
    Jetrix TetriNET Server
    Jetrix is a new generation TetriNET server designed for maximum scalability and extensibility. Customization requires little knowledge of the server's inner functioning. Jetrix aims at becoming the ideal platform for server side TetriNET programmers
    Downloads: 2 This Week
    Last Update:
    See Project
  • 16
    A traditional jigsaw puzzle game. Use your own images and create unique puzzles each time. A java implementation with sound and save/load ability.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 17

    Jurpe

    Role Playing Game Engine

    JURPE (Java Universal Role Playing Engine) is a Java API to support the writing of new computer RPG games based on a skill based, three dice RPG system. It comes with a full featured game demo of a medieval warrior crawling into a monster filled dungeon
    Downloads: 2 This Week
    Last Update:
    See Project
  • 18
    L2Net is .net Alternative Lineage 2 Server and Client.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 19
    Le chansonnier

    Le chansonnier

    Your electronic guitar songbook

    "Le chansonnier" is a program allowing to create, manage, display and publish a guitar songbook. It is able to produce nice PDF documents containing song and chords along with chord diagrams.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 20
    LibroDeEsher
    El Libro De Esher es un generador de personajes para Rolemaster completamente en Español. Permite generar PJs en 10 minutos, PNJs aleatorios y gestionar las subidas de nivel de forma segura por cada uno de los jugadores cómodamente en su casa.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 21
    A model railway simulation. You can define trains, tracks, switches and signals and then watch the trains driving on the tracks, control the trains, switches, and signals.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 22
    MacroWriter

    MacroWriter

    Free macro creation tool

    Allow you to to create macros that will work in everything, for free! Latest Version: 1.0.6 - Interface changed. Known problems: - If you use the editor's auto recorder while in a fullscreen program, the auto generated macro commands will be invisible until you close the auto recorder window. Credits: (Images and icons) https://icons8.com/ https://www.iconsmind.com/ (jNativeHook) https://github.com/kwhat/jnativehook Alexander Barker Aidas Adomkus
    Downloads: 2 This Week
    Last Update:
    See Project
  • 23
    Master of Magic Emulator in Java
    Downloads: 2 This Week
    Last Update:
    See Project
  • 24
    Mine Sweeper Whiz
    Moved to github: https://github.com/claycephus/MineSweeperWhiz Artificial intelligence solver as well as a human-playable mode for Mine Sweeper.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 25
    Netrek is a multiplayer battle simulation game with a Star Trek theme. Up to 16 players are divided into two teams that fight each other for dominion over the galaxy.
    Downloads: 2 This Week
    Last Update:
    See Project