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.

  • Ship Agents Faster Icon
    Ship Agents Faster

    Transform your applications and workflows into powerful agentic systems at global scale.

    Gemini Enterprise Agent Platform lets you rapidly build, scale, govern and optimize production-ready agents grounded in your organization's data. The platform enables developers to build custom or pre-built agents for virtually any use case. New customers get $300 in free credits.
    Get Started Free
  • 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 project is a pure Java implementation of an MMORPG / mud, server and client. It is a fully persistent world, backed by a MySQL datastore. Features NPC AI, shard-level scalability, and persistent items, and a particle attack system.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 2
    Jao is a framework, game server and set of Java clients for developing and playing card games. Support for trick taking games like Hearts, continuous play games like Crazy Eights, and partial support for mutable games like Mao is envisioned.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 3
    Jarcassonne is a free Java implementation of the board game Carcassonne.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 4
    A roguelike game framework written in Java. Has Unicode glyphs and graphical tile support. Includes the Insomnia game.
    Downloads: 0 This Week
    Last Update:
    See Project
  • MongoDB Atlas runs apps anywhere Icon
    MongoDB Atlas runs apps anywhere

    Deploy in 115+ regions with the modern database for every enterprise.

    MongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
    Start Free
  • 5
    Jasm Game provides a quick and simple way to put games online, including client applet and application, robot players and server support in a very short time.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 6
    Jasmine - Just another SIMulation ENgine. A java based single/multiplayer racing game.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 7
    Port of Astrolog and/or Astrolog32 to Java. Astrolog is a free astrology software program since 1991. Astrolog can create horoscopes, natal charts, and calculate current planetary positions in sidereal, traditional, and heliocentric formats.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 8
    An Ataxx implementation in Java. The goal is to provide a living, breathing open-source Java MVC example, and thus provide a stable foundation for features like AI, network play, etc. Look for standalone and applet play.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 9
    A Yatzy scoreboard for 6-dice Yatzy. Uses HSQLDB for saving old games for later review. Implemented in Java
    Downloads: 0 This Week
    Last Update:
    See Project
  • Cut Data Warehouse Costs by 54% Icon
    Cut Data Warehouse Costs by 54%

    Easily migrate from Snowflake, Redshift, or Databricks with free tools.

    BigQuery delivers 54% lower TCO with exabyte scale and flexible pricing. Free migration tools handle the SQL translation automatically.
    Try Free
  • 10
    Jatsi is solitaire yahtzee game. It is written with Java 1.5, so it is portable to most platforms.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 11
    Jattrick Viewer is a program written in Java, which lets you view your desired matches in the online soccer game Hattrick (http://www.hattrick.org).
    Downloads: 0 This Week
    Last Update:
    See Project
  • 12
    Jaunt will be a Roguelike RPG for handheld J2ME devices including the cell phone, PDA and BlackBerry.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 13
    JavAthena(java) is an adaptation of EAthena(c).
    Downloads: 0 This Week
    Last Update:
    See Project
  • 14
    Java implementation of Sudoku. Visually attractive, interactive version with intelligent and brute force solving strategies.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 15

    Java 2D Physics Engine - MOVED!

    MOVED: http://github.com/wilkystyle/java2dphysicsengine

    NOTE: This project has moved to http://github.com/wilkystyle/java2dphysicsengine
    Downloads: 0 This Week
    Last Update:
    See Project
  • 16
    Java 3D Game SDK based on J2SE 1.4 and Java 3D 1.3. No native code is used, so this SDK should be portable to all operating systems, which provide the above SDKs. The SDK provides functions from initializing the window till model animating and renderin
    Downloads: 0 This Week
    Last Update:
    See Project
  • 17
    java checkers framework for developing ai checkers players
    Downloads: 0 This Week
    Last Update:
    See Project
  • 18
    The Java AI Gaming Engine is a collection of games that allow easy integration, testing, and competition of AIs. The games that are supported: Hex and Ataxx, and in the future: TicTacToe, Chess, Checkers, Rock-Paper-Scissors, and more.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 19
    Java Arkanoid Applet is Java Applet that resembles the classic Arkanoid game for instance on the C64. It uses a syntax compatible with JRE 1.1.7.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 20
    Battleships is multiplayer, network game for two people. It includes ships like destroyers, minesweepers and torpedo boats. Each ship has different weapons, movement, armor, and radar. YOU MUST INSTALL IT IN C:\BATTLESHIPS. Run server.bat, then gui.bat.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 21
    Java Behaviour Trees is a Java framework for easily building and running generic behaviour trees. Here, "behaviour tree" refers to the technique used to control the behaviour of characters in video games. IMPORTANT NOTE: our source code has been moved to GitHub. You will find it at: https://github.com/gaia-ucm/jbt Note however that all the binary files will still be distributed here at SourceForge.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 22
    JSDL is a java binding to the SDL library
    Downloads: 0 This Week
    Last Update:
    See Project
  • 23
    Blokus game using Java.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 24
    Aplicación cliente/servidor para jugar a las cartas por internet. Soporta también juegos de un jugador. Infraestructura de soporte para cualquier juego de cartas
    Downloads: 0 This Week
    Last Update:
    See Project
  • 25
    An extensible cellular automata system written in Java.
    Downloads: 0 This Week
    Last Update:
    See Project
Monday.com Logo