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
    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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  • 2

    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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  • 3
    InfoNES Android Port
    InfoNES NES Emulator port for phones that run the Android operating system.
    Downloads: 0 This Week
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  • 4
    *** NO LONGER MAINTAINED *** The Inform 7 Feature for Eclipse is a set of plug-ins which will support cross-platform development of interactive fiction projects in the Inform 7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
    Last Update:
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  • 5
    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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  • 6
    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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  • 7
    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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  • 8
    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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  • 9
    InstantRO is a fast application to search information about Ragnarok Online, like monsters, items, maps, cards, skills, etc. The results from your search will be instantly showed to you, with images of mobs and items.
    Downloads: 0 This Week
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  • 10
    Port of INSTEAD interpreter to to Java applets.
    Downloads: 0 This Week
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  • 11

    IntelligentCookBook

    An intelligent cookbook including a search-tool & menu-planner.

    A cookbook that enables the user to add new recipes, search by using tags and create a plan for the whole week. The cookbook automatically creates the list of necessary ingredients and has its own allergy alert.
    Downloads: 0 This Week
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  • 12
    Expandable multi-player online spacegame with influences of MUD & IRC.
    Downloads: 0 This Week
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  • 13
    This is an UpLink like game based on the idea of InterRed. Developped under Java, using Eclipse, it's a modular game.
    Downloads: 0 This Week
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  • 14
    The purpose of this project is to develop an engine for running web based Interactive Fiction (also known as text adventures) and to develop a XML based Interactive Fiction Markup Language (IFML).
    Downloads: 0 This Week
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  • 15
    Interactive aims to be a cutting edge Opensource, community driven MMO Engine for the indie community. Our goal is to provide a service like AAA companies have in Hero Engine and Big World.
    Downloads: 0 This Week
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  • 16
    A realtime java based multiplayer strategy game similar in nature to Konquest.
    Downloads: 0 This Week
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  • 17
    Scrabble. Cross-platform, remote play, i18n'ed, custom dictionaries with unicode support. Written in Java.
    Downloads: 0 This Week
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  • 18
    Internet C++/Internet Virtual Machine is a high-speed, open-source alternative to Java and .NET. Applications written in standard languages, such as C and C++. OpenGL 1.2 support brings portable high-speed 3D graphics and games.
    Downloads: 0 This Week
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  • 19
    Jogo de tabuleiro baseado em "A raposa e os gansos" em que o objetivo do jogador com os gansos(internet explorer) é encurralar a raposa (firefox), e do jogador que joga com a raposa é "comer" tantos gansos que não seja possível que eles a encurra
    Downloads: 0 This Week
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  • 20
    A Java-based server for the Japanese chess variant "Shogi". Features both a Java-based client and a Java-based server. The idea is to emulate the functionality of the popular Go server IGS (ability to play, observe, store, and review games in a group).
    Downloads: 0 This Week
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  • 21
    Invade Earth is based on the popular game Risk 2210 A.D. by Avalon Hill. Invade Earth features multiple rule sets, a versatile Map Editor, network support, saving and loading game states, and play against the computer. NOTE: Currently, code in CVS may not be up-to-date. Contact admin if interested in the codebase. The latest version of the application is available at http://jonathancrosmer.com/software/invadeearth
    Downloads: 0 This Week
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  • 22
    Invaders is an arcade space shooter with a simple learning mode to enhance the math skills of students in third grade.
    Downloads: 0 This Week
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  • 23
    A massively multiplayer action game that revolves around an alien invasion of earth. The gameplay will be reminiscent of a hollywood blockbuster with everything being just a little bit over the top. The game will run until the humans either repel the a
    Downloads: 0 This Week
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  • 24
    Io is a project in development. It aims to be a backend for all kinds of online games, relieving game developers from the task of writing the technical infrastructure needed to support such games.
    Downloads: 0 This Week
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  • 25
    Irata is a server emulator for Neocron 2, a massive multiplayer online first person shooter / role playing game by Reakktor Media
    Downloads: 0 This Week
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