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.

  • Custom VMs From 1 to 96 vCPUs With 99.95% Uptime Icon
    Custom VMs From 1 to 96 vCPUs With 99.95% Uptime

    General-purpose, compute-optimized, or GPU/TPU-accelerated. Built to your exact specs.

    Live migration and automatic failover keep workloads online through maintenance. One free e2-micro VM every month.
    Start Free
  • 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.
    Start Free
  • 1
    BattleShip

    BattleShip

    The BattleShip is an online game developed in Java.

    The BattleShip was developed using Java. It is an online game where one user has to sink the other user’s ships. The game uses Server-Client structure, each user has a map where he needs to allocate his ships and one map where he will choose where to shoot to try to hit his enemy’s ships. The one who hit all opponent’s ships first, wins the game. The ships allocation can be manually or automatic (random position) and there is also a chat implemented where one user can talk to his opponent. UPDATE: Battleship v2.0 has now single player mode. The user can play against the computer.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 2

    Bengine

    Free strategy browsergame engine.

    Galactic strategy Open Source browsergame. Replacement of the former game Net-Assault.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 3
    BinaryCrypt

    BinaryCrypt

    Binary Conversion Calculator

    With BinaryCrypt, you can convert between regular text, binary, hexadecimal, octal decimal and decimal. You can convert only decimal (as of right now) to any base up to base 64. You can also save your converted text to a file or open a converted text file to decrypt the message, and perform basic arithmetic in binary. The git repo for the C# code is located at: https://github.com/m1r4g3/BinaryCrypt-.Net
    Downloads: 3 This Week
    Last Update:
    See Project
  • 4
    Fly a WWI plane to take out targets on the ground and in the air with destructable terrain and other goodies. A port of While True d.o.o.'s award winning game for Nokia Series 60 phones to the MIDP 2.0 standard for J2ME-capable devices.
    Downloads: 3 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.
    Start Free
  • 5

    CTI Tools box

    Custom Tease Instructor Tools Box

    The CTI community needs a real cross plateform software in order to stop searching everywhere how to create cards or play a tease. An application which offers tools to create decks, cards and much more.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 6
    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: 3 This Week
    Last Update:
    See Project
  • 7
    Clippers is a board game designed by Alan R Moon that is an abstract island connection game based on clipper ships and the south pacific. This computer version is written in Java 1.5 and includes AI players.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 8
    Code Master

    Code Master

    A Game Similar to Mastermind

    You only have a limited number of attempts to crack the code master's secret code. Can you figure it out before you run out of chances?
    Downloads: 3 This Week
    Last Update:
    See Project
  • 9
    CrozzSum (Kakuro)
    Crozz Sum (Kakuro), A simple Kakuro puzzle generator, written using Java Swing, License - GPL 3.0 (http://www.gnu.org/licenses/gpl.html)
    Downloads: 3 This Week
    Last Update:
    See Project
  • Go from Code to Production URL in Seconds Icon
    Go from Code to Production URL in Seconds

    Cloud Run deploys apps in any language instantly. Scales to zero. Pay only when code runs.

    Skip the Kubernetes configs. Cloud Run handles HTTPS, scaling, and infrastructure automatically. Two million requests free per month.
    Start Free
  • 10
    D20 Chat is a chatting interface used for d20 role playing games.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 11
    DaCoinch is a Java implementation of a french card game named 'belote coinchée'. You can play against AI as well as local or remote human players.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 12
    EasyWay java Game Engine is a powerfull 2D OpenSource OpenGL Java Game Engine. It's simple, fast and extendible. With EasyWay you can make your dream game writing few lines of code!
    Downloads: 3 This Week
    Last Update:
    See Project
  • 13
    A MahJong game written for Eclipse.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 14
    Egle - Enigma Game Level Editor

    Egle - Enigma Game Level Editor

    A GUI Level Editor for the Enigma Game

    Make sure to visit the Home Page: (http://enigmaeditor.sourceforge.net/) Enigma Game Level Editor (Egle) is a project to create a level editor for the Enigma game (http://www.nongnu.org/enigma/about.html). Enigma Game Level Editor is made in the Java programming language using the NetBeans IDE.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 15

    EloCalculator

    Elo Calculator - strictly implemented FIDE Rating Regulations

    This little tool might be helpful for chess players. The FIDE Rating Regulations (effective from 1 March 2024) are strictly implemented, therefore its calculation is hundred percent accurate. There is a Windows only version (Windows 7 or higher, .NetFramework 4.7.2 or higher (you don't need to worry about this with a current Windows 10 or 11)) ... and a Java version (Java 17 or higher).
    Downloads: 3 This Week
    Last Update:
    See Project
  • 16

    Enigma

    Enigma is a completed top down zombie survival game written in Java.

    Enigma is a completed top down zombie survival game written in Java when Tristan and I were just sixteen years old. I co-wrote the game with Tristan Homsi as a final assignment for our grade 10 class. If I remember correctly, we were given two weeks to work on the final. Tristan and I started early in the year and worked on it for months before the final was even assigned. The game got us our 100% and certainly impressed our fellow classmates. When we look back at Enigma, we realize that when we started it, we knew next to nothing about object orientation, inheritance or the lack of efficiency of some of the techniques that we were using. Throughout the time we spent on it, doing extensive external research on topics such as pathfinding, raytracing, and rendering, we learned quite a bit about the Java API, programming in general with various techniques and how to do them efficiently, and last but not least, how to work as a team.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 17
    This project hosts client software for the play-by-email strategy game Eressea. 2007-03-07: NEW! Magellan has moved to: http://sourceforge.net/projects/magellan-client/
    Downloads: 3 This Week
    Last Update:
    See Project
  • 18
    EVI will be a Java module framework. Modules will focus to internet communication and entertainment. We plan to support IRC, DCC, ICQ, write a number of small games and tools.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 19
    F2L Scrambler v1.2

    F2L Scrambler v1.2

    Generates randomized scrambles for all F2L cases from all angles.

    This small program was designed to generate randomized scrambles for all 41 basic 3x3 Rubik's cube F2L cases, from all 4 angles (FR, FL, BL, BR). It takes 20 unique scrambles from CubeExplorer, all scrambles roughly 7-11 turns in length. In addition, the program also includes useful intuitive and algorithmic solutions for each case.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 20
    Downloads: 3 This Week
    Last Update:
    See Project
  • 21
    Roguelike game with 3d graphics and bone animation.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 22
    Downloads: 3 This Week
    Last Update:
    See Project
  • 23
    FromMyHeart is a simple and fun program that allows you to leave messages on your desktop like a sticky note. Your message is displayed within the graphic and font of your choice. It is a creative way to show someone your thoughts.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 24
    G-RPG is a free 2d-rpg completely programmed in Java.The images used in the game are not made by me,only edited by me. I don't know who made them but I want to thank them for doing it.I hope you will enjoy this game !
    Downloads: 3 This Week
    Last Update:
    See Project
  • 25
    Game Bot

    Game Bot

    Auto Presser for Games

    Auto Presser for games. Oyunlar için oto tuş yazılımıdır. OpenJDK ve OpenJFX kullanılmıştır. Windows versiyonu için SFX paketi içerisinde gerekli kütüphaneler ve geliştirme paketleri bulunmaktadır. Linux versiyonu için lütfen blogumu ziyaret edin ve gerekli adımları uygulayarak, Java 12 ve JavaFX 12 nin kurulumlarının doğru yapıldığına emin olun. -Gerekli Java Sürümü 12.0.1 veya daha yeni.
    Downloads: 3 This Week
    Last Update:
    See Project