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.

  • Earn up to 16% annual interest with Nexo. Icon
    Earn up to 16% annual interest with Nexo.

    More flexibility. More control.

    Generate interest, access liquidity without selling, and execute trades seamlessly. All in one platform. Geographic restrictions, eligibility, and terms apply.
    Get started with Nexo.
  • Build Securely on AWS with Proven Frameworks Icon
    Build Securely on AWS with Proven Frameworks

    Lay a foundation for success with Tested Reference Architectures developed by Fortinet’s experts. Learn more in this white paper.

    Moving to the cloud brings new challenges. How can you manage a larger attack surface while ensuring great network performance? Turn to Fortinet’s Tested Reference Architectures, blueprints for designing and securing cloud environments built by cybersecurity experts. Learn more and explore use cases in this white paper.
    Download Now
  • 1

    JGPSTrackEdit

    GPS track editor for editing tracks and planning (multiple) day tours

    JGPSTrackEdit is a tool for editing gps tracks and planning (multiple days) tours (GPS track editor). An abritary number of tracks may be opened or created, tracks may be merged. A track may be splitted, reversed or edited (e.g. compressed and corrected). Points may be inserted or appended to a track (routing supported) or may be moved or deleted from a track. Maps of several providers are available, the default map is OpenStreetMap. Currently supported track formats: Garmin gpx route, Garmin gpx track, Garmin tcx, kml and plain txt. JGPSTrackEdit my also be used to download tile images for later offline use by smartphone apps. JGPSTrackEdit is written in the java language. To run the software, a java runtime installation is required (may be obtained from https://www.java.com/de/download/ or https://openjdk.java.net/projects/jdk8/ or https://adoptopenjdk.net/) More information, including the user manual, may be found on the wiki pages (https://sourceforge.net/p/jgpst
    Leader badge
    Downloads: 27 This Week
    Last Update:
    See Project
  • 2
    SpongeForge

    SpongeForge

    A Forge mod that implements SpongeAPI

    A Forge implementation of the Sponge API. SpongeForge uses Gradle as its build system. The repo includes the Gradle wrapper that will automatically download the correct Gradle version. Local installations of Gradle may work but are untested. To execute the Gradle wrapper, run the ./gradlew script on Unix systems or only gradlew on Windows systems. In order to build SpongeForge you simply need to run the gradlew command. On Windows systems you should run gradlew instead of ./gradlew to invoke the Gradle wrapper. SpongeForge is the implementation of the Sponge API on the Minecraft Forge platform. Recommended for running plugins together with Forge mods. The purpose of the Sponge project is to create a plugin development framework for Minecraft: Java Edition. Sponge is being created by a global community, and its open-source nature means anyone can participate.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 3
    JSoko

    JSoko

    The Sokoban game implemented in Java.

    JSoko is a Java program for playing the Sokoban game. It features path finding, auto push, auto solving, undo/redo, deadlock detection, and more.
    Leader badge
    Downloads: 22 This Week
    Last Update:
    See Project
  • 4
    miniTraff
    Simulates a city grid of streets, intersections and traffic signals. It supports 8 phases with overlaps, right and left hand drive, turnouts, permitted left and right on red, density and semi-actuation and help screens for every panel.
    Downloads: 106 This Week
    Last Update:
    See Project
  • 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.
    Try Free
  • 5
    G3D Innovation Engine
    G3D is a commercial-grade C++ 3D engine. It is used in commercial games, research papers, military simulators, and university courses. G3D supports real-time rendering, off-line rendering like ray tracing, and general purpose computation on GPUs. As of January 16, 2018, SourceForge is again the home of the active repository for G3D.
    Downloads: 17 This Week
    Last Update:
    See Project
  • 6
    XiangQi Wizard (Chinese Chess Wizard) is a powerful XiangQi (chinese chess) program, which supports UCCI engines. XQWizard Light is the Mobile version for Windows CE and Java ME. ElephantEye is the UCCI engine in XQWizard with strong AI.
    Downloads: 34 This Week
    Last Update:
    See Project
  • 7
    Tweaked

    Tweaked

    Just another ComputerCraft fork

    Tweaked is a mod for Minecraft that adds programmable computers, turtles and more to the game. A fork of the much-beloved ComputerCraft, it continues its legacy with improved performance and stability, along with a wealth of new features. Tweaked can be installed from CurseForge or Modrinth. It runs on both Minecraft Forge and Fabric.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 8
    Xonotic

    Xonotic

    Superproject containing build scripts and tools to download assets

    Xonotic is a free, open-source arena-style first-person shooter video game that emphasizes fast-paced movement, skill-based combat, and a diverse arsenal, with gameplay reminiscent of classic shooters like Quake and Unreal Tournament. Born as a community fork of the Nexuiz project to preserve open development principles, Xonotic runs on an enhanced version of the DarkPlaces engine and supports Windows, macOS, and Linux platforms with no installation required beyond extracting the game files. Players can enjoy a wide variety of multiplayer game modes—from traditional deathmatch and team captures to experimental variations like Nexball and Freeze Tag—each designed to exploit high mobility and deep map knowledge. The game includes dozens of official and community-created maps, robust server browsing, customizable HUD and controls, and even an integrated statistics system called XonStat for tracking performance.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 9
    A -quite ambitious- project to create a functional Doom source port in pure Java, trying to keep as close as possible to the original source code while at the same time streamlining it into a more OO and Java-friendly form.
    Leader badge
    Downloads: 42 This Week
    Last Update:
    See Project
  • Stop Storing Third-Party Tokens in Your Database Icon
    Stop Storing Third-Party Tokens in Your Database

    Auth0 Token Vault handles secure token storage, exchange, and refresh for external providers so you don't have to build it yourself.

    Rolling your own OAuth token storage can be a security liability. Token Vault securely stores access and refresh tokens from federated providers and handles exchange and renewal automatically. Connected accounts, refresh exchange, and privileged worker flows included.
    Try Auth0 for Free
  • 10
    Scrabble Dictionary
    Scrabble Dictionary is a dictionary / word builder for Scrabble®-like games. It allows you to determine which words can be formed with a given rack and board. Features single and multi-player modes, multiple board designs and tile bags.
    Leader badge
    Downloads: 25 This Week
    Last Update:
    See Project
  • 11
    Snake 2D

    Snake 2D

    Simple single and multiplayer 2D snake game

    Simple single and multiplayer 2D snake game If you like it please drop a Like! :D
    Downloads: 40 This Week
    Last Update:
    See Project
  • 12
    FS2004/FSX Scenery Config Editor
    A java based Scenery Config Editor. Provides group functionality and more.
    Downloads: 14 This Week
    Last Update:
    See Project
  • 13
    YSoccer

    YSoccer

    Retro style, multi-platform soccer game

    A new soccer game which intends to give a continuation to the funny and easy playable series of Sensible World of Soccer (aka SWOS). The source code is available under the GNU General Public License.
    Leader badge
    Downloads: 38 This Week
    Last Update:
    See Project
  • 14
    JAIMBot is a modular architecture for providing services through an AIM client. It contains a generic AIM library and a Bot which uses this library to provide such services as Offline Messaging, Lists, Weather, Headlines, Stock Quotes, AI chatterbot.
    Leader badge
    Downloads: 83 This Week
    Last Update:
    See Project
  • 15
    Magic Assistant
    Magic Assistant is multi-platform application for "Magic: The Gathering" players. Includes Card Browser, Library Organizer, Deck Builder and MTG Tournament Manager. Comes with MTG cards database and allows web updates. See home page for details. Sadly this project is no longer active, it is up for adoption.
    Downloads: 11 This Week
    Last Update:
    See Project
  • 16
    Origami Editor 3D

    Origami Editor 3D

    Virtual paper folding program

    Origami Editor 3D is an advanced paper folding simulator. It uses a what-you-see-is-what-you-get interface and operates with a geometric abstraction of the Yoshizawa-Randlett system. Anything from a simple airplane to John Montroll's omega star can be folded in this editor. Origami files created with the program preserve the entire folding process, and they can be exported as folding diagrams in PDF, animated GIF files, or even as standalone Java programs displaying the origami in a 3D viewer when opened. The main purpose of this program is designing origami, but if you only want to learn how to make some origami figures, there is a set of built-in example files that can help you. Currently, there are 34 example figures available. Please note that this project was created for fun and still is a work in progress. The Discussion forum is open for anyone who wants to report a bug or suggest a new feature. User Guide: http://origamieditor3d.sourceforge.net/userguide/en/index.html
    Leader badge
    Downloads: 36 This Week
    Last Update:
    See Project
  • 17
    Colossus is a Java clone of the boardgame Titan, a turn-based fantasy wargame for 2-6 players. Each player moves stacks of creatures around a strategic board, recruiting more creatures and fighting enemy stacks on tactical maps.
    Leader badge
    Downloads: 17 This Week
    Last Update:
    See Project
  • 18
    Mobile Open-Source Software and Tools

    Mobile Open-Source Software and Tools

    Android, UIQ 3.0, Series 60 Edition 5 open-source software

    Android, Symbian UIQ 3.0 and Symbian Series 60 Edition 5 open-source software, tools, libraries and themes. Most notable the FX-602P / FX-603P Simulator and the HP-45 Emulator are hosted here.
    Leader badge
    Downloads: 33 This Week
    Last Update:
    See Project
  • 19

    yogpstop Minecraft Mods

    My minecraft mods development base

    yogpstop's minecraft(bukkit) mods is release in here. I'm japanese. Blog is maybe Japanese. And I'm not well at English. Please be advised. But you can post to discussion and tickets at English. Of course, reply written in English. And it isn't machine translation.
    Downloads: 33 This Week
    Last Update:
    See Project
  • 20
    Master of Magic - IME

    Master of Magic - IME

    Multiplayer Java rewrite of Simtex's classic game Master of Magic

    This is a multiplayer client/server java rewrite of Microprose/Simtex's classic DOS turn based strategy game Master of Magic. Latest versions now require Java 25, however since a lot of folks have been having trouble setting this up, I am now providing 2 versions, one with a JRE included in the download, and one without. Beyond this, it should just be as simple as unzipping the file and running server.bat to get the server running locally, and client.bat to start up the client. See the readme for more details. The project is effectively finished at this point and I did not really plan any further major releases. However Simbey has been commissioning an artist to upscale all the graphics from the original game so these have been incorporated into 1.7.0. By default it uses the original graphics, you need to enable the upscaled graphics in the options screen. I am at the MoM discord server at https://discord.gg/wFNQf36 Or can message me or raise ticket on SourceForge
    Leader badge
    Downloads: 12 This Week
    Last Update:
    See Project
  • 21
    JBoardGames
    Collections of simple Java Board Games No third party libraries. Now avaiable: - Chess 1.0.18 featuring Human vs Human Human vs Computer Computer vs Computer With puzzles. -Quattro 1.2.3 Currently available: Human vs Human Human vs Computer Computer vs Computer -Checkers 1.0.9 featuring Human vs Human Human vs Computer Computer vs Computer -Backgammon 1.0.2 featuring Human vs Human Human vs Computer Computer vs Computer - Go 1.0.1 Human vs Human Human vs Computer Computer vs Computer -Dominoes 1.0.1 featuring Human vs Human Human vs Computer Computer vs Computer - Mill 1.0.5 featuring Human vs Human Human vs Computer Computer vs Computer - Battleship 1.0.2 Human vs Computer
    Downloads: 56 This Week
    Last Update:
    See Project
  • 22
    An adaptation of the Fabled Lands gamebook series: travel through a fantastic world, amassing skill, wealth, and fame, while avoiding sudden death. Presents the complete text to preserve the spirit of the original.
    Leader badge
    Downloads: 14 This Week
    Last Update:
    See Project
  • 23

    Europa Universalis Game Tools

    Europa Universalis 4 save game editor

    Java library and application to edit game files from all Clausewitz-engine games (EU3 and later, including EU4, Victoria 2, Hearts of Iron 3, EU: Rome, March of the Eagles, and Crusader Kings 2 and 3) and their saved games. Source code is now hosted at https://github.com/mmyers/eug. Sponsor on Patreon: https://www.patreon.com/user?u=60455822
    Leader badge
    Downloads: 55 This Week
    Last Update:
    See Project
  • 24
    Rolemaster Office
    PC and NPC character generator for Rolemaster RMFRP roleplaying system (from Iron Crown Enterprises). The program calculates all bonus and generates a nice PDF character sheet that contains additionally pages. The programm does not provide during-game support.
    Downloads: 11 This Week
    Last Update:
    See Project
  • 25
    Nesoid

    Nesoid

    NES emulator for Android phones

    This project is based on sources, published by original Nesoid developer, who in turn used code of GPFCE, forked from FCEUltra, currently incarnation of which is known as FCEUX. Help and suggestions are welcome. This project has been abandoned in favor of the RetroArch, another awesome free software emulator (which has much better NES support and is more actively developed): http://www.libretro.com/.
    Downloads: 19 This Week
    Last Update:
    See Project
MongoDB Logo MongoDB