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.

  • 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
  • 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
  • 1
    A set of games and other applications for the Hoppolek platform, a research project aimed at giving gravely handicapped children a possibility to move and play, while also helping to strengthen their bone structure and normalize their muscle tonus.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 2
    Hostile is a topdown multiplayer shooter combining elements from games like Worms and Crimsonland into a fast and action paced package.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 3
    Hostile Takeover is a turn based tactical squad simulation game with multiplayer support. It is heavily inspired by X-COM: UFO Defense. Developed in Java using Java3D, HT will provide a fun game and a reference for developers.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 4
    Hotelbuster is a platform independent, isometric, tilebased, turn-based strategy (TBS) game. It implements the famous board-game Hotel in a client server environment. See the project website for more detail
    Downloads: 0 This Week
    Last Update:
    See Project
  • $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
  • 5
    Hounda

    Hounda

    The ultimate MineCraft mod

    This mod adds ● Special mobs ● New buildings ● Upgraded villagers
    Downloads: 0 This Week
    Last Update:
    See Project
  • 6
    HowFar allows you to draw a route on a map. HowFar will display the total distance of the route (in metric or US units) as well as drawing mile/kilometer markers. Useful for planning outdoor runs and/or rides of varying length.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 7
    Helps you play Sudoku. Named after the inventor. Eliminate possibilites by clicking. Has optional automated solving assistants for rote techniques, but doesn't take away the fun of playing. Clean, straightforward Java code.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 8
    btp2p stands for Bluetooth p2p and it is a collection of java classes for p2p networks over Bluetooth. Useful for CLDC multiplayer games and other applications with extendable design for layered protocols. HuNt is a chatroom midlet based on btp2p.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 9
    This is a maze-like game. The object of the game is to guide Jim through the maze-like forest. On some levels, there may be a step limit, wild animals, and/or slave traders in his way through the forest. (To be added in later release.)
    Downloads: 0 This Week
    Last Update:
    See Project
  • 99.99% Uptime for MySQL and PostgreSQL Databases Icon
    99.99% Uptime for MySQL and PostgreSQL Databases

    Sub-second maintenance. 2x read/write performance. Built-in vector search for AI apps.

    Cloud SQL Enterprise Plus delivers near-zero downtime with 35 days of point-in-time recovery. Supports MySQL, PostgreSQL, and SQL Server.
    Try Free
  • 10
    Human AI Net

    Human AI Net

    a Human and Artificial Intelligence Network

    We are going to teach eachother how to build AI and new kinds of game objects in this network using intuitive dragAndDrop. Its going to be a space for experimenting with fun and useful tools in new ways. Version 0.8.0 has some advanced components that will be working soon. The plan is a massively multiplayer space where we design, evolve, and play with game objects and do AI research together which controls those game objects along with directly playing the games. The main data format is, from xorlisp which is also in progress, immutable binary forest nodes, so if millions of people build that together nobody can damage or change anyone else's data since its all constant. You dont change variables. You create new data that points at existing constant data, as deep as you need it. I have mindmap lists, definitions, and 2 editable properties working that way with 2 kinds of event listeners that work locally. Its not a networked system yet, but the datastructs are ready to scale with it.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 11
    HumanSudokuSolver is intended to solve Sudoku puzzles in a way human beings would do (non brute force). It currently solves most of the puzzles I tried and can output a step-by-step solution. Developers who want to contribute are welcome!
    Downloads: 0 This Week
    Last Update:
    See Project
  • 12
    Java-based game where humanoids are managed by scripts
    Downloads: 0 This Week
    Last Update:
    See Project
  • 13
    Hunky Punk
    An interactive fiction manager and interpreter for Android, aimed to be a comprehensive multi-interpreter similar to Gargoyle, with metadata and story management support. Currently Z-Code stories are supported and metadata is fetched from IFDb.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 14
    Real-time strategy game implemented in Java similar to the commercial game "Pirates! GOLD"
    Downloads: 0 This Week
    Last Update:
    See Project
  • 15
    Creating 3d maps like GtkRadiant but with java in Dutch.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 16
    World of Warcraft DKP package for EQDKP Plus based DKP systems. It includes an in-game addon to keep track of DKP data and to simplify loot distribution and an automated update application.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 17
    This game is the generalization of the classic Battleship game to a n-dimensional grid. Rules are the same as the classic game and boats are always unidimensional, but ships can be set in a linear (1D), square (2D), cube (3D) on n-hypercubic grid.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 18
    Hysteria Engine

    Hysteria Engine

    A multiplatform game engine for interactive fiction experiences

    A multiplatform game engine for interactive fiction experiences. It makes use of JLayer API, available at http://www.javazoom.net/javalayer/javalayer.html
    Downloads: 0 This Week
    Last Update:
    See Project
  • 19
    Höken's Calculator

    Höken's Calculator

    A building points calculator for the browser game The-West.

    Höken's Calculator (Swedish: Hökens Kalkylator) is a program developed by Gunnar Axelson (Höken). The program aims on providing a simple, multi-platform compatible, building points calculator for the browser game The-West. (This application isn't in any way supported, effected or developed by InnoGames GmbH). Currently the newest version is 1.1. Hökens Calculator is free, and opensource licensed under the terms of the GNU General Public License Version 3!
    Downloads: 0 This Week
    Last Update:
    See Project
  • 20
    j2me version of icHerbert - game used in first round of algorithm competition http://imaginecup.com
    Downloads: 0 This Week
    Last Update:
    See Project
  • 21
    Another implementation of Risiko written in java at "ITIS DALMINE" high school in Italy (www.itisdalmine.it).
    Downloads: 0 This Week
    Last Update:
    See Project
  • 22
    Open source Interactive Graphical Multiuser System for developing from online RPG/Adventure Games to strategy games like Starcraft. It includes a complete IDE (code editor, sprite and animation editor, scenario editor, debugger), a compiler and a server.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 23
    Web statistics for IL-2 server
    Downloads: 0 This Week
    Last Update:
    See Project
  • 24
    GenEX automatically generates the SIOC program code for various home built cockpits that use IOCards as their hardware interface system. With GenEx, cockpit builders need not worry about SIOC programming and Project Magenta/FSUIPC offsets anymore.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 25
    The IPP (Internet Poker Protocol) is a simple text protocol that allows several players to play a variety of poker games.
    Downloads: 0 This Week
    Last Update:
    See Project
Monday.com Logo