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

    Iliad Online RPG

    An Open Engine for use on the OUYA

    We are developing an Open Engine to be used on the upcoming OUYA console. The engine's design is inspired by a small existing game that has been around for decades, Odyssey http://www.odysseyclassic.com Currently, the source for Odyssey has been opened, but it's still in VB6. Instead of managing an old code base in an extinct language we're starting from scratch. This will allow us to bring modern technology on board to expand the play experience. The goal is to keep to the roots, but bring the gameplay up to date. The engine is being designed to give more control to game designers. Each game created with the engine can be wildly different thanks to content tools and scripting capabilities.
    Downloads: 0 This Week
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  • 2
    Az Illuminati csapat projektje.
    Downloads: 0 This Week
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  • 3
    ImageSlider = ``Slide Puzzle". On a surface are 8x6 slideable buttons. Each button holds one sub image of a given one. The buttons can be mixed and the player needs to rearange the image by sliding the sub image buttons.
    Downloads: 0 This Week
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  • 4
    A recreation of Mazewar, as it originally ran on an Imlac PDS-1 in the mid-1970's, and some Imlac cross-development tools. This consists of a client program, written in C++, which runs on Windows/XP (at least), and a server program, written in Java.
    Downloads: 0 This Week
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  • 5
    A breakout type of game developed to be easily modified or tuned for customization. The original idea was to support a local youth volunteer organization by making a game promoting it\'s name as some sort of viral. But since the game turned out quite w
    Downloads: 0 This Week
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  • 6
    IWOR is a programming game which simulates a world in which robots controlled by programs can live, work, defend their tribe, and even produce clones of themselves!
    Downloads: 0 This Week
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  • 7
    Imperium Mundus is a real time strategy game written in pure Java (Java 2 SDK 1.4.2). The game objectives are many: hold your own territories, capture enemy territory, establish or join strong alliances, conquer the whole world or just try to survive.
    Downloads: 0 This Week
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  • 8
    In the beginning it seems like playing civilization, in the end..... who knows?
    Downloads: 0 This Week
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  • 9
    A project for making a 3D space game between mandkind and open Merchant Empires Full java (want a 100% portability) using GL4java for openGL rendering. It's composed of a TCP server and a java openGL client
    Downloads: 0 This Week
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  • 10
    2D Action-scroller game engine. IIchan.ru game content is included.
    Downloads: 0 This Week
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  • 11
    Improve your English: Listen to the song

    Improve your English: Listen to the song

    Practice your English (or any other language) with your favorite songs

    Introduce any song from your computer and the lyrics and practice your English (or any other language), filling in the suggested gaps. An embedded dictionary will help you understand every word. It's funny!
    Downloads: 0 This Week
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  • 12
    InCrEG online gaming platform

    InCrEG online gaming platform

    Aire de jeu de Belote en ligne

    [fr] Aire de jeu en ligne (client et serveur) basée sur les sources InCrEG. Belote inclus et d'autres à venir. [en] Online gaming platform (client & server) based on InCrEG sources. Belote included, more games to come.
    Downloads: 0 This Week
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  • 13
    Live For Speed InSim library for Java. Visit blog for additional information, news, documentation
    Downloads: 0 This Week
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  • 14
    A java MUD server, designed from the ground up with OO principals in mind. Based off of Leibniz’s monad school of philosophy.
    Downloads: 0 This Week
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  • 15
    The purpose of this Project is to provide a compatible implementation of the original Indigo Magic Desktop founded on SGI IRIX systems. We changed the name to :Maxx Interactive Desktop and our new home is at: maxxdesktop.co
    Downloads: 0 This Week
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  • 16
    Under Concept Development, Tactical MMORTS, involving rampant customization. JAVA based.
    Downloads: 0 This Week
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  • 17
    MUD engine, enables interaction with text-only, XML clients. Has on-line/in-game world creation capability. WotC's OGL SRD and Java based, capable of scalable worlds across distributed servers. In short a next generation MMORPG engine.
    Downloads: 0 This Week
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  • 18
    Infinite Wars is a team-based space-shooting game with elements from RTS-games. Per team there can be one commander managing the team while the other players fight in small space-ships trying to compete with the other team.
    Downloads: 0 This Week
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  • 19

    Infinite Wisdom

    Java RTS framework

    A bare bones RTS game framework. It has networking and replay support, and have some building blocks to build AI agents (discretized path finding in a continous world). Update (2025. Jun): javax.xml.bind.annotation.XmlAccessType was removed from JDKs later than 1.8. So use the project with JDKs from 1.6 to 1.8. Write in the forum if you're interested in running it on a more modern JDK. The demo program's entry point is Dom1Bootstrapper. You can download a runnable demo jar from the files. If your default JDK is higher than 1.8, it won't start on double click. Update (2014. May 9.): Detailed documentation is uploaded (i.e. my thesis). It examines the system from the user's perspective, but includes some internal details too. Of course it has some extra chapters here and there to conform to the format of a thesis. Check it out at the "Files" section (r221). There's also a corresponding src/bin/javadoc bundle there.
    Downloads: 0 This Week
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  • 20
    InfoNES Android Port
    InfoNES NES Emulator port for phones that run the Android operating system.
    Downloads: 0 This Week
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  • 21
    *** NO LONGER MAINTAINED *** The Inform 7 Feature for Eclipse is a set of plug-ins which will support cross-platform development of interactive fiction projects in the Inform 7 language. The current version is tested under Linux and Windows.
    Downloads: 0 This Week
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  • 22
    Infothello
    Infothello is a project made by students from the IUT of calais(france) The main subject is making the game "othello" , including an AI and a 2 player-mode. The game is developped in JAVA language.
    Downloads: 0 This Week
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  • 23
    Ingens Mundus is a new generation of MMORPG allowing dynamic flexibility and unparalleled growth potential. Mundus is designed to allow the player to command NPCs by assigning player programmable AIs to them.
    Downloads: 0 This Week
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  • 24
    This program provides a GUI for running Dungeons and Dragons v3.0/3.5 combats by handling the initiative order. It supports readying, delaying to a count, White Raven Tactics, and more. As a Java application, it is platform-independent.
    Downloads: 0 This Week
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  • 25
    Turn based strategy game. Game works as follows: Set up unit formation, set unit AI's, let AI's run for a period of time, then reset AI's and repeat until victory conditions are met.
    Downloads: 0 This Week
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