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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
    Sudokuki - essential sudoku game

    Sudokuki - essential sudoku game

    Sudokuki is a free graphical SUDOKU game

    Sudokuki is a free graphical SUDOKU game: Sudokuki solves even the most difficult sudoku grids for you - Generate a sudoku - Play sudoku - Print a sudoku... Available in 17 languages. Just download and play! You can also play with arabic or chinese numbers. Sudokuki is Free Software developed in Java. Have fun!
    Downloads: 1 This Week
    Last Update:
    See Project
  • 2
    Calculates victory odds for battles in Axis and Allies 1940 Edition. It takes into account the newly added units and rules in this release of the board game. Displays win/loss/tie percentages, IPC cost/loss, and remaining units. Requires Java https://blog.henrypoon.com/blog/2010/12/24/axis-and-allies-1940-battle-calculatorsimulator/
    Downloads: 2 This Week
    Last Update:
    See Project
  • 3

    Blackjack Game with AI

    Play blackjack against the dealer or an AI player

    This is one of the few blackjack games that has a computerized opponent that plays very effectively. In teaching mode, you can learn how to play blackjack in the mathematically ideal way, and win more than 50% of the time.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 4
    Chequered Flag is an open-source attempt to create the first universal game editor for Geoff Crammond's F1GP and WC. The long-term goal of the project is to incorporate all editing facilities, both current and future in this program.
    Downloads: 2 This Week
    Last Update:
    See Project
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  • 5
    Dioscuri is an x86 computer hardware emulator written in Java. It is designed by the digital preservation community to make sure that documents and programs from the past can still be accessed in the future. Dioscuri is durable and component-based.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 6
    Errare is a diablo-like 3D RPG game. It is written in Java because we believe games should run on any OS. Gamers unite !
    Downloads: 2 This Week
    Last Update:
    See Project
  • 7
    GBCoid

    GBCoid

    Gameboy and Gameboy Color emulator for Android phones

    This project is based on sources published by original GBCoid developer, who in turn used code of gnuboy. Help and suggestions are welcome. This project has been abandoned in favor of RetroArch, another awesome free software console emulator (which is also actively developed): http://www.libretro.com/.
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    Downloads: 2 This Week
    Last Update:
    See Project
  • 8
    NaruGo is game AI project. Current targets are GO board game and Texas Holdem poker. It investigates Genetic programming to build game AI logic. Also EA/GP simulations for TSP, Graph layout and Prisoners Dilemma problem.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 9
    It is a Shogi - Japanese Chess - game made in Java, where you can play against one of 3 AI's of your choice. Or against a friend.
    Downloads: 2 This Week
    Last Update:
    See Project
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  • 10
    TOS is a multi-player soccer simulation game and a match simulation engine for on-line soccer management games. TOS can also be used as a tool for multi-agent AI research and education.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 11
    Tiny Go is a MIDlet (cell phone application, MIDP 2.0, CLDC 1.1), which allows to play and review Go (Weiqi, Igo, Baduk) board game files in Smart Game Format (SGF). Supports problem solving. Project provides library for SGF parsing as separate package.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 12
    Worldlines
    Worldlines visualizes special relativity, as particles near lightspeed trace paths in a 3D slice of 4D Minkowski spacetime. Scenes illustrate time dilation, the twin paradox, length contraction, and Bell's spaceship paradox.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 13
    aScanmem

    aScanmem

    game cheater for Android

    aScanmem is Android frontend for scanmem game hacking utility. Scanmem is a Linux cheating tool acting also as debugger / memory editor with support for viewing memory regions watching and repeatedly setting values in chosen address space.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 14
    jAMAL
    jAMAL is a Java-based reimplementation of the AMOS Animation Language (AMAL).
    Downloads: 2 This Week
    Last Update:
    See Project
  • 15
    jClassicRPG
    Developing classic RPG framework with Java & OpenGL. An attempt to create a detailed, old-fashioned pen'n'paper like & turn based RPG with a decent story/AI and a huge place to play. Also includes a reference RPG. Blog: http://jcrpg.blogspot.com
    Downloads: 2 This Week
    Last Update:
    See Project
  • 16
    tXtFL is a strategy-based football simulator. Teams can be created from real stats on the web, built through custom designed plays, and then used to coach games or predict scores. Note that as of 2010, all new development is taking place at http://textflex.com/txtfl.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 17
    Capa chess

    Capa chess

    Chess program

    Capa chess is a chess program. Features built-in simple engine, interface with external XBoard/WinBoard and UCI engines, basic plug-in capabilities, import/export, 2D/3D boards with customization. Java JRE 1.8 or above required.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 18
    Chesspresso is a chess library entirely written in Java. The main focus is to deliver high-level interfaces and efficient algorithms to programmers of Java chess software.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 19
    Java port of the Quake2 game engine
    Downloads: 1 This Week
    Last Update:
    See Project
  • 20
    Solaris Skunk Werks is a tool used to design Battlemechs for use with the Classic Battletech wargame. Data Files are available at www.solarisskunkwerks.com
    Downloads: 1 This Week
    Last Update:
    See Project
  • 21
    Projects of The Fellowship of the Game game development group.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 22
    Tournament Maker

    Tournament Maker

    Software to help people run and organize tournaments.

    This program is intended for small tournament organizers. The goal is to allow organizers without much experience to setup and run a tournament without hours of preparation. Running a tournament is hard, especially when there are only a few people helping. With the software doing all the work, organizers will be more relaxed and it'll be a better experience for everyone. If you find this program useful, please donate to Food for the Hungry (http://fh.org/) or a charitable organization of your choosing. Quick Start Guide: https://sourceforge.net/p/tournamentmaker/wiki/Quick%20Start%20Guide/ ChangeLog: https://sourceforge.net/p/tournamentmaker/wiki/ChangeLog/ Please leave a review if you have time! Feedback is always helpful for me.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 23
    A simple two player chess game written in Java. The game enforces all of the rules of chess, highlighting potential moves, and has complete undo/redo functionality. A computer AI opponent is not available.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 24
    Tyrant is a graphical roguelike fantasy adventure game. It features intricate randomly generated landscapes, towns and dungeons. It is written in Java with a highly extensible game engine.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 25
    GOdroid is an Android application to play the strategic board game Go against the GPL Go engine GNU Go. It contains a Go board UI and minor changes to GNU Go. This site contains the sources for the UI and the (few) changes to the GNU Go sources. Translations contributed by - Chinese: Jean Lea and Kid Wong - Russian: Шмойлов Валерий - Danish and Norwegian: Michael Berthelsen - Polish: Piotr Goliasz - Finnish: Daniel Landau - Romanian: Mircea Damian - Spanish: Pol Urós Guardiola - Portuguese (Brazil): Igor Costa - Italian: Alessio Gerola - Hungarian: Téglás Zoltán, review: András Oláh - French: Laurent L Volunteers for providing additional translations are very welcome - it's easy, just fill out a google docs/drive spreadsheet.
    Downloads: 1 This Week
    Last Update:
    See Project