Open Source Java Games
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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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Our Free Plans just got better! | Auth0You 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.
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libsdl-android
SDL library for Android, including several games.
Port of SDL library to Android mobile platform. There are also several games inside the repository, along with their sources and build files. Both SDL 1.2 and 1.3/2.0 versions are supported (1.3/2.0 support is experimental) Sources are at https://github.com/pelya/commandergenius -
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LOTRO Companion
A companion for your LOTRO activities
LOTRO Companion is a desktop application. It manages characters of the Lord of the Rings Online (LOTRO) MMORPG. It has 3 main goals: - track the status of one or several characters: current gear, deeds, quests, collections... - simulate gear/virtues, compute result stats and analyze stats contributions - lore database: quests, items, deeds, mounts, pets... Character data is imported from the game client running locally. See https://discord.gg/t2J4GDq See https://www.facebook.com/lotrocompanion/ -
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TV-Browser - A free EPG
Ad free open source TV guide for more than 1000 channels.
TV-Browser is a java-based TV guide which can be easily extended with lots of plugins. It is designed to look like your paper TV guide. -
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Robocode
Robocode is a programming tank game for Java
Robocode is a programming game, where the goal is to develop a robot battle tank to battle against other tanks with Java. The robot battles are running in real-time and on-screen. The motto of Robocode is: Build the best, destroy the rest! -
AI-powered service management for IT and enterprise teamsGive your IT, operations, and business teams the ability to deliver exceptional services—without the complexity. Maximize operational efficiency with refreshingly simple, AI-powered Freshservice.
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FreeCol
Colonize the New World.
FreeCol is a turn-based strategy game based on the old game Colonization, and similar to Civilization. The objective of the game is to create an independent nation. You start with only a few colonists defying the stormy seas in their search for new land. Will you guide them on the Colonization of a New World? The last stable version release can be found here: https://sourceforge.net/projects/freecol/files/latest/download The latest test pre-release of the next version can be found here: https://github.com/FreeCol/freecol/releases If you want to contribute to Freecol please visit our welcome information thread to see how here: https://sourceforge.net/p/freecol/discussion/719661/thread/2d0063a3bc/ -
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Sudoku generator/solver/analyzer written in Java (English and German). Lots of human style techniques (singles, subsets, LCs, fish, wings, uniqueness, coloring, chains, ALS), powerful analyzer (manage multiple solutions for one sudoku). Includes Learning and training modes and a booklet printer.
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TripleA Maps
A collection of all maps and games made for the TripleA game engine
http://www.triplea-game.org/ -
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Minecraft X-Ray is a program whose primary purpose is to aid in finding valuable ores and resources inside a Minecraft world. This branch is based on code written by plusminus from the Minecraft forums.
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Typing Guru
SUPORTS: Hindi, English, Nepali, Tamil, Punjabi, Urdu,Bengali,Marathi.
Web Version: https://typing-guru.com/ This software is developed on the view of beginners how they can increase typing speed. There is a step-by-step process to increase typing speed. This is available for Linux and windows both. Supports: Hindi Typing, English Typing, Nepali Typing, Tamil Typing, Punjabi Typing, Urdu Typing, Bengali Typing, Marathi Typing, Telugu Typing. More language will be added if you request in reviews. Tags: Typing Guru, typing tutor 6, Marathi typing software, Hindi typing tutor, ubuntu Hindi font, Hindi typing test software, Unicode Hindi keyboard, Gujarati typing tutor software, English typing master, typing tutor 6 in Hindi, typing master install to ubuntu, typing tutor 6, typing klavaro, typing tutor 6 downloads, typing tutor, English typing master, typing, tutor offline, klavaro touch typing tutor, keyboard, digitação, Typeshala, Typeshala, Abdhesh Nayak, -
MongoDB Atlas runs apps anywhereMongoDB 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.
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Battle for Wesnoth Android Port
Battle for Wesnoth is a turn based fantasy strategic game
This is an unofficial android port of the PC game Battle for Wesnoth. Battle for Wesnoth is a turn-based fantasy strategy game, featuring many addictive campaigns, lots of units, different races, AI controlled players, multiplayer gaming and much more. -
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NostalgiaLauncher
Minecraft PE Alpha versions launcher for Windows and Linux
Minecraft PE Alpha versions launcher for Windows and Linux -
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Arianne RPG
Arianne is an engine to develop multiplayer online games like Stendhal
Arianne is a multiplayer online engine to develop turn based and real time games, providing a simple way of creating the game server rules and clients like our MORPG Stendhal. Our engine Marauroa uses Java and SQL for hosting hundreds of players on a solo host. Stendhal is a fun friendly and free multiplayer online adventure game with a huge and rich world. With hundreds of NPCs and different quests, features like the Travel log and achievement system keep track of progress. Thousands of creatures are ready to fight, above and below ground, and as players level up they can compare themselves on a detailed stats website. The engine Marauroa provides a simple way of creating games on a portable and robust server architecture. Marauroa manages the client server communication and provides an object orientated view of the world for game developers. It handles database access in a transparent way to store player accounts, character progress and the state of the world -
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Domination (Risk Board Game)
Domination is a game that is a bit like the board game Risk
Domination is a game that is a bit like the well known board game of Risk or RisiKo. It has many game options and includes many maps. Written in java it includes a map editor, a simple map format, multiplayer network play, single player, hotseat, 5 user interfaces and many more features, it works in all OSs that run java 1.5 or higher, iOS and Android. -
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An Open Source model rocket simulator.
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Game Extractor
Open and edit the archive files used in over 5200 games.
Reads and writes archives used in many popular games. Great for mod development and game translations. Supports over 5200 games, with more games added through small plugins. Also shows file previews and converts them to different formats. -
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FTLEditor
A tool to edit profile and saved game files for FasterThanLight.
A 3rd-party tool to edit user files for the game FasterThanLight. With this, you can unlock any or all ships and achievements in your user profile, or tweak most aspects of saved games: crew, systems, weapons, fires, breaches, etc. -
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PCGen :: An RPG Character Generator
RPG character generator for RPG d20 systems.
PCGen is a free open source RPG character generator (d20 systems). All datafiles are ASCII so they can be modified by users for their own campaigns. Please join us at http://groups.yahoo.com/group/pcgen/. Support email: help@pcgen.org -
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Crossfire RPG game
Cooperative multiplayer graphical RPG and adventure game
Crossfire is a free, open-source, cooperative multi-player RPG and adventure game. Since its initial release, Crossfire has grown to encompass over 150 monsters, 3000 areas to explore, an elaborate magic system, 14 races, 16 character classes, and many powerful artifacts scattered far and wide. Set in a fantastical medieval world, it blends the style of Gauntlet, NetHack, Moria, and Angband. -
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VASSAL is a game engine for creating electronic versions of traditional board and card games. It provides support for game piece rendering and interaction, and supports play by email or over a live connection.
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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.
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Jin is a Java client for various chess servers. It currently supports the Internet Chess Club (chessclub.com) and the Free Internet Chess Server (freechess.org) but is designed to be able to support any chess server.
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------- 6th Feb 2026 ---------- gamepad support added = Mario_NES_Gamepad_Supported.zip require minimum java 1.8 after starting game with java.exe -jar "Mario.jar" in the main screen you can press z and x to chagen levels -------- settings if u check "skip this next time" and if u want to bring it back simply delete the file "Settings.txt" ( the file is create when u launch game and start game ) -------- controlls : z = run / fire x = jump arrows : left = go left down : duck right = go right i = show controlls menu g = show gamepad buttons -------- this is not for android game , its for windows , mac os and linux
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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.
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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
