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.

  • $300 Free Credits for Your Google Cloud Projects Icon
    $300 Free Credits for Your Google Cloud Projects

    Start building on Google Cloud with $300 in free credits. No commitment, no credit card required until you're ready to scale.

    Launch your next project with $300 in free Google Cloud credits—no strings attached. Test, build, and deploy without risk. Use your credits across the entire Google Cloud platform to find what works best for your needs. After your credits are used, continue with always-free tier services. Only pay when you're ready to scale. Sign up in minutes and start exploring.
    Start Free Trial
  • Our Free Plans just got better! | Auth0 Icon
    Our Free Plans just got better! | Auth0

    With up to 25k MAUs and unlimited Okta connections, our Free Plan lets you focus on what you do best—building great apps.

    You asked, we delivered! Auth0 is excited to expand our Free and Paid plans to include more options so you can focus on building, deploying, and scaling applications without having to worry about your security. Auth0 now, thank yourself later.
    Try free now
  • 1
    This is a Java based graphical (AWT, Java 1.1) program to allow a user to download and/or view webcomics without having to go to the website (for convienience and bandwidth reasons), archive them and search and view them later. Uses SQL DB.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 2
    The ComicReader is a program to read daily comics like Garfield, Dilbert, Userfriendly and lots of other daily comics. The comicreader has unique features like autodownloading the comics, central managed comic definitions and the option to email comics.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 3
    The Comics project allows local downloading and visualization of comics found on the web.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 4
    Comix viewer is a simple eclipse plugin allowing a developer to view their favorite daily comic strips. Remembers the last comic viewed and allows for easy import and export. Eclipse Update Site : http://www.oblivion.ch/rcp/update/
    Downloads: 0 This Week
    Last Update:
    See Project
  • Build Agents and Models on One Platform Icon
    Build Agents and Models on One Platform

    Everything you need to build production-ready agents and models. Access 200+ Google and third-party AI models and tools.

    Gemini Enterprise Agent Platform is Google Cloud's comprehensive platform for developers to build, scale, govern, and optimize agents and models. Choose from Google's most advanced models and third-party models like Anthropic's Claude Model Family.
    Try It Free
  • 5
    This started out as a project in class implementing Convex Hull Algorithms and Polygon Tesselation but is expected to grow into a much larger realm of usage, including teaching tools for the sciences, Games, and much more. Uses JOGL for Display.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 6
    Logiciel d'assistance au calcul du classement d'escrimeurs à travers plusieurs compétitions. Classement par catégorie, ligue, etc. Basé sur le format de fichier FFF.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 7

    Competitive Minecraft

    A competitive Minecraft mod and map

    This mod is all about making, as the name says, Minecraft into a more comptetitive-oriented game. Therefore this mod is about playing with, and against, your friends. This mod will mainly be focused on Capture the Flag, but will have Spleef-, Tunnel "Defense"- and 4 in-a-row content as well.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 8
    Software for the competitions on computational intelligence in games.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 9
    This game will enable Succession War multiplayer play over a network. The game should be able to support about 30 players with full "Battle Command" capabilities.
    Downloads: 0 This Week
    Last Update:
    See Project
  • Error to trace to log to deploy. One click. No SSH. Icon
    Error to trace to log to deploy. One click. No SSH.

    Catch the cause before the pager goes off.

    AppSignal links every error to the trace, the trace to the log, the log to the deploy that shipped it.
    Free 30 days.
  • 10
    You take a role as a CEO in a computer company. That company builds computers and sells them, you can even build consoles, PDAs, mobile phones, etc.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 11
    Concrete Jungle is a game that simulates the daily hustle bustle of the city. You compete against other players for domination of the city streets by moving your armies of denizens across the board.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 12
    A concurrent Puzzle with thread
    Downloads: 0 This Week
    Last Update:
    See Project
  • 13
    Traditional Malaysian board game. Similar to Mancala. Implement NeuralNetwork (NN) agent, Min-Max, and Random move. System is based on Adam Cofer's Mancala system (2003). Also using Neuroph 2.5b by Zoran Servarac for NN. All code under GPLv3.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 14
    Connect Four is a two-player board game in which the objective is to be the first to get four of one's own discs in a line. This game can be played over the network. It runs on Windows, Linux and other operating systems which support the Java 5 platform.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 15
    This project is intended as an example implementation of Java with SWT and Draw2D. It is also a pretty good Connect4 game that you play against the computer.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 16
    Connect4 game written in Java with network support thanks to RMI.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 17
    Conquer-Space.net is a browser-based online massively multiplayer space build-up strategy and exploration game. Written in 100% Java, it features a built-in webserver and database. It started in mid-2001 and went Open-Source in late 2004. And it works!
    Downloads: 0 This Week
    Last Update:
    See Project
  • 18
    "Conquest of Time" is a turn based strategy game inspired by Civilization and Empire. You start with one city and one unit - search your opponents and defeat them! (Note: Java 1.5.0 needed for running.)
    Downloads: 0 This Week
    Last Update:
    See Project
  • 19
    Downloads: 0 This Week
    Last Update:
    See Project
  • 20
    Creation of a cyberpunk MMORPG based on Stephenson, and Gibson novels. Includes both real-world and online environments, full charecter generation, and the ability for users to expand the world.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 21

    Contador de Truco

    Contador de Truco Multiplataforma

    Contador de Truco Multiplataforma desarrollado en LibGDX.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 22
    This program is developed for J2ME devices. It is an application wich count the puntuation in this game.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 23
    A Contract Bridge JAVA Based Hand Generator. Designed to aid with bidding theory and development. Hands and can be created using points, distribution and fixed cards restrictions.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 24
    ActionScript library and Java applet giving Flash applications full support for game controllers.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 25
    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: 0 This Week
    Last Update:
    See Project
Monday.com Logo