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.

  • 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
  • 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
  • 1
    A tool for calculating chances for a poker-game of Texas Hold'em
    Downloads: 0 This Week
    Last Update:
    See Project
  • 2
    This is another RTS (real time strategy) with a few new features, such as customizable technologies and graphics, mutliple players per team, and more. This game is "Of the gamers, by the gamers, and for the gamers." We know what everyone wants in an RTS
    Downloads: 0 This Week
    Last Update:
    See Project
  • 3
    Character Grimoire

    Character Grimoire

    Manage your character's spells and items

    Downloads: 0 This Week
    Last Update:
    See Project
  • 4
    "Charlaf" - A mystery under sand.
    Downloads: 0 This Week
    Last Update:
    See Project
  • Atera - an All-in-one platform for IT management Icon
    Atera - an All-in-one platform for IT management

    Ideal for IT departments and MSPs (managed service providers)

    Your IT essentials, integrated & elevated. Take your IT management from automated to autonomous, download Atera's agent to start your free trial!
    Try Atera now
  • 5

    Charlotte's Utilities

    Charlotte's Utilities mod for Minecraft Forge made by Sharshar

    Charlotte's Utilities is my first adventure into modding Minecraft. I wanted to have some extra utilities and things for my server that I couldn't find in other mods, or if I could I was able to think of a different way that I would prefer to implement them. At its core, this mod pack is just a collection of utilities that I feel improve the game experience. Everything is fully configurable in the config file so you can change, enable, or disable whatever you feel is best for you! The mod has quickly developed into one that's aimed primarily at the builders of the Minecraft community, and I plan to expand on that idea going into the future. My goal is to provide new, unique, and easy ways to allow players to construct whatever comes to their mind. I take feedback very seriously and if you have a good idea I won't hesitate to implement it. Development of Charlotte's Utilities is made possible by Full Effect Hosting
    Downloads: 0 This Week
    Last Update:
    See Project
  • 6
    ChatteRoll is a framework for playing tabletop games over the internet. It's based on interconnected modules to allow users to create and share game components quickly and easily..
    Downloads: 0 This Week
    Last Update:
    See Project
  • 7
    It's a Chess-programm with the foucs on the multiplayer part. Atm there is no plan for an AI, but you are welcome :)
    Downloads: 0 This Week
    Last Update:
    See Project
  • 8
    CheckerBoard
    A simple 2d rendering engine written in Java that is ideal for board or strategy games. This project is in active development, so expect updates often.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 9

    Checkers Plus

    https://github.com/kesara/checkersplus

    Moved to github: https://github.com/kesara/checkersplus Client server based, platform independent, multi player American Checker (English Draughts) game. With J2EE based server, Java Client and a Windows.NET client.
    Downloads: 0 This Week
    Last Update:
    See Project
  • Train ML Models With SQL You Already Know Icon
    Train ML Models With SQL You Already Know

    BigQuery automates data prep, analysis, and predictions with built-in AI assistance.

    Build and deploy ML models using familiar SQL. Automate data prep with built-in Gemini. Query 1 TB and store 10 GB free monthly.
    Try Free
  • 10
    A Java based checkmate board game. Press "Download Checkmate" below to download the file. Server is running on KITE - you can just connect.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 11
    Chequered Flag is an open-source attempt to create the first universal game editor for Geoff Crammond's F1GP and WC. The long-term goal of the project is to incorporate all editing facilities, both current and future in this program.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 12
    CherBot is an information bot for Crossfire, Daimonin and good old plain IRC that keeps track of which players collect which items, who's been online, determines a level ranking, provides a mail system for mailing offline players, manages clans and
    Downloads: 0 This Week
    Last Update:
    See Project
  • 13
    Cherokee is a fully extensible and scriptable automation engine for any and all java applets. To make it work for your favorite java applet the most you have to do is write is two classes.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 14
    Chess

    Chess

    A simple 2D-Chess

    A 2D-Chess with many features, such as a multiplayer server and many others. It will also show you all movement possibilites you have. Playing against Computer is in development
    Downloads: 0 This Week
    Last Update:
    See Project
  • 15
    Extensible chess club and tournament manager.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 16
    A Core for Java Chess Games
    Downloads: 0 This Week
    Last Update:
    See Project
  • 17
    Chess Diagram Editor
    Chess Diagram Editor is a simple program to create chess diagrams. The program supports GIF, JPG, PNG as well as FEN files.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 18
    Chess Game AI Phantoms
    Phantoms Chess Where Pawns Can become Queens Chess Game is zero-sum two-player. Team Members: Phantoms Team * Leader Gehad Sayed Kaseb Gehad.Kaseb@gmail.com * Co-leader Rawia Ahmed * Research team Hagar Samir Safaa Mohamed * Design and Implementation team Ahmed Helal Aya Eid Aya Tarek Eman Saleh Fatma El zhraa Ibrahim Hanan Mohamed John Samir Mina Victor Nahla Ibrahim Samira Magdy Samr Ayman * Integration Team Marwa Ayman Nahla Essam * Interface and Communication team Abderahmn Samy Sherif Ibrahim * Testing team Gehad Ahmed Hassan Mohamed * Documentation team Nasma Abdallah Nourhan Tarek Egypt, Cairo University, Faculty of Engineering, Computer Department
    Downloads: 0 This Week
    Last Update:
    See Project
  • 19
    Chess Queens
    Calculate the number of solutions to place n queens on an n*n chess board, without any queen attacking each other. Options allow using rooks instead of queens, disabling knight attacks and setting the minimum distance between queens.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 20
    Chess Tournaments

    Chess Tournaments

    This is a chess program to help you to organize any chess tournaments

    This is a chess program to help you to organize any chess tournaments without using real chess rules, go to the support page of this program. The support page also has more information about this program. This program creates a "Data" folder to save settings of this program and notes of tournaments and players. Players could play with each other on a single device or playing by multiple devices by a network. This program shows squares that mouse points on them and that helps to prevent any mouse mistakes that happen when playing chess by computers! Although you could do moves by keyboard too. This program has all the functionalities that you need to manage a database, but you cannot analyze games by chess engines or creating variations for them. This program has all time controls in chess clocks, but if you need more complex time controls, you could use them as well, because this program allows you to start a game from any position by two different time controls.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 21
    Downloads: 0 This Week
    Last Update:
    See Project
  • 22
    Solitaire game on a chess board written in Java. Turns can be undone. Supports English, German, Hungarian locales.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 23
    An easy to understand chess engine.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 24
    At present moment this project is aimed to be a small library, that checks validity of turn in chess game. Further plans include extenging it to multiuser/multiplatform chess gaming environment.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 25
    Java chess programm. Main goal is to develop an object orientated program with simple and well documented interfaces. A major point is how to handle endgame situations.
    Downloads: 0 This Week
    Last Update:
    See Project