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
    Reads and writes images used in many popular games. Great for mod development. Supports over 50 games, with more games added through small plugins. Allows batch conversion of images.
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    Downloads: 9 This Week
    Last Update:
    See Project
  • 2

    Minecraft last login decoder/recovery

    Decodes the login credentials stored by the minecraft launcher

    This simple application written in java decodes the login credentials stored in the file named "lastlogin" in your minecraft folder. DEPRECATED AFTER MC 1.6
    Downloads: 9 This Week
    Last Update:
    See Project
  • 3
    ControllerToKeys

    ControllerToKeys

    Emulate Keyboard and Mouse with a Controller.

    Supports Xbox 360 controllers and possibly other Xinput controllers. Also supports other USB controllers such as Logitech Dual Action. Go to Configure -> Non-Xbox controller. ControllerToKeys aims to give full controller support to all PC games that don't have it by emulating key strokes, mouse movement, mouse buttons, scroll wheel and key combos (i.e. alt+tab). With the ability to save and sharing button mappings, the intention is to be able to publicly share your mappings with others via. the forums. Hopefully, one day every game will have have mapping. Requires Java 7.
    Downloads: 5 This Week
    Last Update:
    See Project
  • 4
    Smart Travian Bot automates boring tasks for Travian like farming,trading and upgrading. Unlike others Smart Travian Bot works in browser which makes impossible to detect it.
    Downloads: 5 This Week
    Last Update:
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  • 5
    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: 5 This Week
    Last Update:
    See Project
  • 6
    jAMOS

    jAMOS

    AMOS BASIC reimplementation in Java

    jAMOS is a cross platform, Java-based reimplementation of François Lionet's AMOS BASIC on the Amiga.
    Downloads: 5 This Week
    Last Update:
    See Project
  • 7
    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: 5 This Week
    Last Update:
    See Project
  • 8
    JMStella is a J2ME Atari 2600 VCS emulator based upon JStella 0.95. It allows one to play Atari 2600 games on a java-enabled mobile phone.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 9
    Open Cache Manager
    OCM is an easy to use program for managing your geocaches, with the goal of being the Linux equivalent to GSAK. OCM integrates with GPSBabel to support most GPS devices (requires GPSBabel to be installed).
    Downloads: 9 This Week
    Last Update:
    See Project
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  • 10
    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.
    Downloads: 3 This Week
    Last Update:
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  • 11
    BiDiB-Wizard

    BiDiB-Wizard

    Configuration tool for BiDiB decoders (see http://www.bidib.org/)

    This is a configuration tool with graphical user interface to modify properties of and to define macros for BiDiB decoders (see http://www.bidib.org/). The BiDiB-Wizard uses a free JIDE license for open source projects. Please visit http://www.jidesoft.com/ for more information.
    Downloads: 8 This Week
    Last Update:
    See Project
  • 12
    BTLib package is a J2ME Bluetooth library usefull when developing applications for Java, Bluetooth enabled mobile devices. The other packages are individual applications utilizing BTLib. You can download any of them and run it in your mobile device.
    Downloads: 8 This Week
    Last Update:
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  • 13
    IceTimer

    IceTimer

    Graphical timer and match scheduler for pick-up ice hockey sessions

    An application to display a schedule of and time short round-robin style matches for up to 30 teams with up to 3 simultaneous matches in play. Primarily intended for use in Oxford University Alternative Ice Hockey sessions but could easily be modified for use in similar informal sports tournaments. Match fixture lists generated using Jonathan Rennison's Match Fixture List Generator (matchgen.sourceforge.net). Interface written in Java using Processing (processing.org).
    Downloads: 8 This Week
    Last Update:
    See Project
  • 14
    JNBT is a Java NBT (Named Binary Tag) library. It provides easy to use NBTInputStream and NBTOutputStream classes to read and write NBT files. NBT is the level format used by the Minecraft game.
    Downloads: 8 This Week
    Last Update:
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  • 15
    MilCity
    MilCity is a Real Time Strategy based game. Build your own city, earn money and produce energy ... and construct weapons ! And, like in a Battleship game, you can use these weapons against your opponents. Available on all J2ME capable mobile phones !
    Downloads: 8 This Week
    Last Update:
    See Project
  • 16
    Minecraft by zyczu

    Minecraft by zyczu

    Minecraft launcher

    Downloads: 8 This Week
    Last Update:
    See Project
  • 17
    PbnTools

    PbnTools

    Bridge player's toolkit

    A bridge (card game) player's toolkit. Currently includes funcionalities: 1. Download tournaments from results generated by Kops, Pary and Bbo server and save it as pbn. 2. Deal real cards from a pbn file, using some extra (cheap) stuff. 3. Lin to Pbn conversion - convert deals saved in Bbo format to Pbn.
    Downloads: 8 This Week
    Last Update:
    See Project
  • 18
    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:
    See Project
  • 19
    SPR Cricket Ticker

    SPR Cricket Ticker

    Unobtrusive ticker for keeping track of international cricket scores

    An unobtrusive ticker that displays the latest score for one or more international cricket matches covering test, one-day and T20 formats. Available for Windows, Linux and Mac OSX. Please see https://sourceforge.net/p/sprcrickettickr/wiki/ for full installation instructions. Change History https://github.com/spr117/Spr.CricketTicker/blob/master/CHANGES.md
    Downloads: 8 This Week
    Last Update:
    See Project
  • 20
    SSPTool
    This program for SimCity 4 provides an interface for various plugins. The DAMN Manager is one of the famous plugins.
    Downloads: 8 This Week
    Last Update:
    See Project
  • 21
    Simpro is a collection of applications. They are just small programs includes some games, unitlities... written in Delphi, Visual Basic, Java.
    Downloads: 8 This Week
    Last Update:
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  • 22
    Battleship game written in Java. Network support (dedicated server). (needs at least JRE1.4)
    Downloads: 8 This Week
    Last Update:
    See Project
  • 23
    A small and easy to use framebuffer graphics library
    Downloads: 8 This Week
    Last Update:
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  • 24
    Xbpad

    Xbpad

    Xbpad - Use your xbox pad as keyboard and mouse.

    With Xbpad, you can use an Xbox 360® controller to surf the web and play games and music on your PC. It's a comfortable alternative to the keyboard and mouse. Using Xbpad with a wireless controller means you don't need to sit by your computer. You can control your music player wirelessly. You can also connect your computer to your TV and browse the web wirelessly using your controller. Xbpad lets you use a comfortable controller instead of the mouse and keyboard. If you find clicking a mouse difficult, squeezing a controller trigger might be a good alternative. If you need to stay away from the keyboard, you might like to try Xbpad instead. Download: Choose between application bundled with JRE or without. Github: https://github.com/ddwreczycki/Xbpad64 https://github.com/ddwreczycki/Xbpad32 Softpedia reviews: http://www.softpedia.com/get/System/System-Miscellaneous/Xbpad.shtml
    Downloads: 8 This Week
    Last Update:
    See Project
  • 25
    OpenRPG is an Internet application that allows people to play Role Playing Games and some miniature based war games in real-time over the Internet. OpenRPG helps facilitate character tracking, miniature battles, and adventure building.
    Downloads: 9 This Week
    Last Update:
    See Project