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.

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  • 1
    An entertaining Sokoban game with nice 3D graphics available for Windows, Linux & Mac. Features different skins & workers, several level sets, resume & replay, improved mouse/keyboard control, audio etc.
    Downloads: 39 This Week
    Last Update:
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  • 2
    A text-based soccer match generation engine. Reproduces the match with statistics and report. To be used as a library by integrating with 'host' applications. Download 'desktop' version or try it at http://www.pubsoccermanager.com
    Downloads: 13 This Week
    Last Update:
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  • 3
    Pairfx

    Pairfx

    Chess pairing program for run through and round robin tournaments

    PairFX is a chess pairing program specialized for youth tournaments in schools and chess clubs . No installation required! Just Unzip it and go! I created a free online/mobile version as well : https://oks.myvcc.be/pairfx-live/ (You can run any kind of tournament with it actually but it was written for chess in schools) It supports the organization of a so-called 'run through' tournament and round robin (everybody against everybody) tournaments Swiss pairings are not (yet) possible. Are you a chess teacher at school, or organize a separate tournament at the club? Try PairFX! The run through pairing system makes it possible for player to come and go whenever they want and also to keep players playing all the time. It is not round based , so not everybody has to be finished to allow new pairings to be made. This is really great when players play at different speed and works very well in the club or at school.
    Downloads: 13 This Week
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  • 4
    x3d

    x3d

    X3D is the open-standard format for 3D graphics scenes on the Web.

    Extensible 3D (X3D) Graphics is a royalty-free International Standard for real-time interactive 3D graphics on the Web, providing unsurpassed interoperability for 3D communications on the Web. This project includes source for example X3D scene libraries and multiple X3D codebases produced by Web3D Consortium members. All open-source contributions are welcome.
    Downloads: 13 This Week
    Last Update:
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  • 5
    SolitaireCG

    SolitaireCG

    Solitaire Card Games for Android™

    SolitaireCG is an adaptation of Ken Magic's "Solitaire" for devices with few hardware buttons. SolitaireCG stands for Solitaire Card Games and is a software application for Android™. Solitaire Card Games include Klondike (regular solitaire), Vegas, Spider, Golf, Freecell, Forty Thieves, TriPeaks, and variations of these games. Key changes against the original are outlined at: https://solitairecg.sourceforge.io/ The changes fix bugs, add games and portait mode, and enable card dealing and playability in spider. New hi-res graphics have been added to the original card graphics to take advantage of today's larger, higher resolution screens. Source code available under Apache license 2.0, see git repository.
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    Downloads: 36 This Week
    Last Update:
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  • 6
    jnostromo

    jnostromo

    E-Sport Drivers for the Razer Nostromo

    Deprecated - please use Keyboarding Master: https://sites.google.com/site/keyboardingmaster/ jnostromo provides drivers for the Razer Nostromo & Belkin N52/N52te designed to be E-Sport legal. Profiles are unique user defined keymappings and can be created for each game. Each profile can have up to 8 unique keymaps with mappings to switch between keymaps. jnostromo includes an easy to use configuration gui to map keys from the nostromo to the keyboard and/or mouse. The configuration gui can be hidden and at any time, the gui can be displayed by clicking on the system tray icon. Its the goal of this project to make jnostromo the driver of choice for E-Sports and competitive gamers! Version 1.5 Tutorial Video http://youtu.be/EkLRJiqoE_o Note, version 1.5.2 has just been released (tarball) which includes an important bug fix. Before, holding down a key repeats the key, now the application only receives a single key when a key is held down.
    Downloads: 20 This Week
    Last Update:
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  • 7
    !!! This project has been moved to https://github.com/Xenoage/Bolzplatz2006 !!! Our current project is called "Bolzplatz 2006" (English title "Slam Soccer 2006", French title "Coup de Fout 2006"). It's a freeware 3D-soccer-game in comic-style and a funny allusion to the World Cup 2006 in Germany.
    Downloads: 35 This Week
    Last Update:
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  • 8
    GameBoid

    GameBoid

    Gameboy Advance emulator for Android phones

    This project is based on sources published by original GameBoid developer, who in turn used code of gpSP2X, based on gpSP. Help and suggestions are welcome. This project is abandoned in favor of RetroArch: http://www.libretro.com/. Seriously, check that one out!
    Downloads: 35 This Week
    Last Update:
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  • 9
    Arcade shooter fully customizable from text files: now you can build your own arcade shooter easily! Project was created and compiled in Java 5.0, using Golden T Game Engine (http://goldenstudios.or.id).
    Downloads: 19 This Week
    Last Update:
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  • 10
    Torch

    Torch

    Torch is a Android / J2ME torch light mob app

    Torch is a Android / J2ME torch light mob app CHECK OUT AND SUPPORT MY LATEST ANDROID PROJECTS IN HERE: https://play.google.com/store/apps/developer?id=Deepak+PK
    Downloads: 34 This Week
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  • 11
    playbox.fx

    playbox.fx

    Collection of board games.

    Playbox.fx is a free, ad-free and still growing collection of board games. It is a private hobby project with no commercial goals. It contains Mahjong Solitaire, Draughts, Chess, Go, Halma, Nine Men's Morris and Peg Solitaire. The games can be played against a simple AI or locally against friends. There is a portable version (zip) for Linux. There is an installer (exe) and a portable version (zip) for Windows. Have fun and stay healthy, Markus.
    Downloads: 42 This Week
    Last Update:
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  • 12

    Thermos

    MinecraftForge Server Software implementing the Spigot/Bukkit API

    Minecraft Forge Server Software implementing the Spigot/Bukkit API, formerly known as Cauldron/MCPC.
    Downloads: 33 This Week
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  • 13
    Wireless Redstone is a Minecraft modification that allows you to transmit and receive redstone signals without wires.
    Downloads: 17 This Week
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  • 14
    jGameBase - Universal Emulator Frontend
    jGameBase is a Java port of GameBase, a fully-featured retro-gaming emulator frontend and game database utility (e.g. GB64 Collection of C64 games). It supports virtually any emulator for any system and has versatile database searching and filtering. There are databases for Apple II, Atari ST, Coleco ColecoVision, Commodore Amiga, Commodore C64, Commodore VIC20, Nintendo NES, Nintendo SNES, and Sinclair ZXSpectrum.
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    Downloads: 30 This Week
    Last Update:
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  • 15
    Cygwin Ports

    Cygwin Ports

    Repository of desktops and programs for the Cygwin platform

    A large repository of open-source programs built for Cygwin, including X11 desktops, language interpreters, multimedia frameworks, cross-compiler toolchains, and much more. Also hosted here is the cygport tool for building Cygwin packages. cygport releases and the Ports Git repositories are hosted here; Ports packages are available from the website.
    Downloads: 5 This Week
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  • 16
    Tower of Zaldagor

    Tower of Zaldagor

    The classic intelligent role playing game

    Tower of Zaldagor is a roleplaying game (RPG) where you need to use your wits and skills to complete challenges. Blade Kahn, a king of Sonthalas, has lost his daughter to the Great White Dragon: Zaldagor. She has been kidnapped by humanoids. You have been picked among the elite to return his daugther safely. Engage into an epic story where Gods change the future and demons interfere with the present. Download and discover the beginning of an epic story. The Android version is now available! Find it here: http://market.android.com/details?id=toz.android See a promo video here: http://www.youtube.com/watch?v=Rh7GGlk5m30 Follow Sarquah on Twitter about the development: http://www.twitter.com/sarquah87
    Downloads: 16 This Week
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  • 17
    JGame is a small multiplatform 2D game engine. It runs on the Java JRE 1.3+ platform, the J2ME (MIDP2.0/CLDC1.1) mobile platform, and the Android (2.1+) platform. It provides a very high-level framework for "classic" type arcade games.
    Downloads: 10 This Week
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  • 18
    PokeDroid
    Pokémon simulator for Android! Features include a variety of AI opponents, all Pokémon and moves, and total Pokémon customization (IVs, EVs, nature, etc.) Download it and send us your feedback!
    Downloads: 8 This Week
    Last Update:
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  • 19
    CsGL is OpenGL for the .Net Framework, providing support for OpenGL 1.1 - 1.4 and numerous extensions.
    Downloads: 16 This Week
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  • 20
    Applied Energistics 2

    Applied Energistics 2

    A Minecraft Mod about Matter and Energy

    Applied Energistics 2 (AE2) is a comprehensive mod for Minecraft that introduces a unique approach to in-game inventory management. Its theme is centered around the concept of converting matter into energy and vice versa, to store and transport your items and fluids instantaneously. AE2 revolutionizes storage in Minecraft. The mod adds a network-based digital storage system, where items and blocks are stored as energy in a digital form within a network of connected devices. This allows for compact storage solutions and easy access to your items. Another significant feature of AE2 is its automatic crafting capabilities. Players can set up patterns and recipes which the system can automatically craft on demand. This greatly streamlines bulk and complex crafting processes, saving time and effort. AE2 adds a whole new level of strategy to your Minecraft builds with its networking and channel system.
    Downloads: 1 This Week
    Last Update:
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  • 21
    BuildCraft

    BuildCraft

    BuildCraft mod for Minecraft

    BuildCraft is a mod for Minecraft. BuildCraft itself is licensed under the MMPLv1 or MPLv2 if you need the specifics, but generally, you can. By default, many simple (primarily worldgen/decorative) blocks are supported out of the box, such as the kind of blocks added by Chisel 2 or Ztones. However, for many other mods, special support is required to allow for rotation and remove the chance of duplication bugs appearing. BuildCraft Compat is a BuildCraft addon designed to add cross-mod compatibility with other mods. BuildCraft is in the process of moving back to the MJ power system. However, due to BuildCraft being in alpha no other mods support it (or should support it, as its still making breaking changes to the API.
    Downloads: 1 This Week
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  • 22
    GriefPrevention

    GriefPrevention

    The official self-service anti-griefing Bukkit plugin for Minecraft

    GriefPrevention is a long-running anti-griefing plugin for Minecraft servers built around self-service land protection. It helps prevent damage, theft, unwanted building, and other griefing behavior before server staff have to respond manually. Players can protect their own builds with minimal administrator involvement, which makes it useful for public survival servers with many users. The project targets current Spigot, Paper, and Purpur servers, while older versions remain available separately for legacy Minecraft environments. It also has an addon ecosystem for extending protection behavior beyond the core plugin. GriefPrevention is best suited for server owners who want practical build protection, fewer moderation emergencies, and a player-friendly claiming system.
    Downloads: 1 This Week
    Last Update:
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  • 23
    JustEnoughItems

    JustEnoughItems

    Item and Recipe viewing mod for Minecraft

    A popular Minecraft mod providing a comprehensive item recipe viewer and search functionality for in-game items.
    Downloads: 1 This Week
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  • 24
    Luck Perms

    Luck Perms

    A permissions plugin for Minecraft servers

    LuckPerms is a widely used open-source permissions management plugin for Minecraft servers that allows administrators to control what actions players can perform within the game. The plugin provides a flexible system for creating user groups, assigning permissions, and defining roles that determine access to commands, features, and gameplay mechanics. Designed for performance and scalability, LuckPerms can handle large multiplayer servers and complex permission hierarchies while maintaining fast response times. Administrators can configure permissions using command-line tools, configuration files, or a web-based editor that simplifies management of large permission systems. The plugin also supports multiple storage backends such as local files, SQL databases, and other data systems, allowing server networks to synchronize permissions across multiple servers.
    Downloads: 1 This Week
    Last Update:
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  • 25
    spark

    spark

    A performance profiler for Minecraft clients, servers, and proxies

    spark is a performance profiling and diagnostic tool designed for Minecraft servers, clients, and proxy software. It helps developers and server administrators analyze performance issues such as lag, high CPU usage, and memory bottlenecks. The plugin collects statistical information about the server’s execution and generates detailed profiling data that can be used to identify inefficient code or problematic plugins. spark includes tools for CPU profiling, memory inspection, and monitoring server health metrics over time. The profiling data is typically visualized through an online viewer that displays call graphs and flame graphs to help users interpret performance results. Because it is lightweight and designed to run in production environments, administrators can safely use it on live servers to diagnose performance issues without significant overhead.
    Downloads: 1 This Week
    Last Update:
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