Open Source Java Games
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Java Games
View related business solutionsBrowse 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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PojavLauncher
A Minecraft Java Edition Launcher for Android and iOS
A Minecraft Java Edition Launcher for Android and iOS based on Boardwalk. This repository contains source code for the Android platform. -
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MCA Selector
A tool to select chunks from Minecraft worlds for deletion or export
An external tool to export or delete selected chunks and regions from a world save of Minecraft Java Edition. -
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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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Universal Pokemon Randomizer ZX
Public repository of source code for the Universal Pokemon Randomizer
Universal Pokemon Randomizer ZX is an open-source tool that allows players to modify and randomize various aspects of Pokémon games across multiple generations, creating unique and unpredictable gameplay experiences. It supports a wide range of ROMs and provides a user-friendly interface for customizing game elements such as Pokémon encounters, abilities, stats, movesets, and item distributions. The tool is designed to maintain game stability while introducing variability, ensuring that randomized versions remain playable and balanced. It also includes advanced options that allow users to control the level of randomness, from subtle changes to complete overhauls of game mechanics. By enabling customization, the project extends the replay value of classic Pokémon titles and encourages experimentation with different strategies. It is widely used by the community for challenge runs, content creation, and personalized gameplay experiences. -
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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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Sodium
A Minecraft mod designed to improve frame rates
Sodium is a powerful rendering engine and optimization mod for the Minecraft client which improves frame rates and reduces micro-stutter while fixing many graphical issues in Minecraft. A Minecraft mod designed to improve frame rates and reduce micro-stutter. -
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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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Hello Minecraft! Launcher
A Minecraft Launcher which is multi-functional, cross-platform
HMCL is a cross-platform Minecraft launcher that supports Mod Management, Game Customizing, ModLoader Installing (Forge, NeoForge, Fabric, Quilt, LiteLoader, and OptiFine), Modpack Creating, UI Customization, and more. HMCL has amazing cross-platform capabilities. It can not only run on different operating systems such as Windows, Linux, and macOS, but also supports multiple CPU architectures such as x86, ARM, MIPS, and LoongArch. You can easily play Minecraft on different platforms through HMCL. -
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Roblox anti-AFK
Never get AFK kicked from Roblox again!
Never get AFK-kicked again! With Roblox anti-AFK you can easily: grind, farm, chill and whatever you want! It's very easy to use. Just press "Start!", and good luck being AFK! You don't even need to have the Roblox window open. Roblox anti-AFK allows you to AFK in Roblox while you can still use your device. I hope you'll make lots of progress in your favourite simulators! Feel free to add suggestions! =====Version: 2.9.1===== Requires Java to be installed to run. You can download it here if you don't have it already: https://www.java.com/download/manual.jsp If you have trouble opening the program, the first post may help: https://sourceforge.net/p/roblox-anti-afk/tickets/7/?limit=25 -
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VulkanMod
Vulkan renderer mod for Minecraft
This is a fabric mod that introduces a brand new Vulkan-based voxel rendering engine to Minecraft Java in order to both replace the default OpenGL renderer and bring performance improvements. -
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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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MCreator
Make Minecraft Java Edition mods, Minecraft Bedrock Edition Add-Ons
MCreator is an open-source integrated development environment designed to simplify the process of creating Minecraft mods, add-ons, resource packs, and data packs. The software provides a visual programming environment where users can design mod features using graphical tools instead of writing code manually. Through wizards, block-based programming interfaces, and an integrated editor, MCreator generates the underlying Java or JSON code required for the mod automatically. This approach allows beginners and students to experiment with mod development without needing extensive programming experience. At the same time, advanced users can extend the tool through plugins or directly modify the generated code for more complex projects. MCreator is widely used in educational settings, modding communities, and programming workshops as a gateway into game development. -
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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! -
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Arclight
A Bukkit(1.19/1.20) server implementation in modding environment
A Bukkit server implementation on common mod loaders. -
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Baritone
Google maps for block game
A Minecraft pathfinder bot. Baritone is the pathfinding system used in Impact since 4.4. How to immediately get started: Type #goto 1000 500 in chat to go to x=1000 z=500. Type #mine diamond_ore to mine diamond ore. Type #stop to stop. For more, read the usage page and/or watch this tutorial playlist. For other versions of Minecraft or more complicated situations or for development, see Installation & setup. Also consider just installing Impact, which comes with Baritone and is easier to install than wrangling with version JSONs and zips. For 1.16.5, click here and see description. Once Baritone is installed, look here for instructions on how to use it. This project is an updated version of MineBot, the original version of the bot for Minecraft 1.8.9, rebuilt for 1.12.2 onwards. Baritone focuses on reliability and particularly performance (it's over 30x faster than MineBot at calculating paths). -
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Data Crow
Your collection, your way
Data Crow is an open source collection manager for movies & video (DivX, MP4, MKV, etc.), TV series, books (and eBooks), images, board games, comic books, games & software, and music (MP3 and other audio files). Besides these built-in modules (which you can customise to fit your needs) you can create entirely new ones. Want to catalogue your stamps, equipment, wine, or anything else? Data Crow makes it possible. Your collection is accessible the way you prefer: as a stand-alone desktop application, in server-client mode for shared access across multiple users or devices, via the web client in any browser, or on the go with the Data Crow Reader App. The app synchronises with your Data Crow installation and works fully offline. Private. Offline. Completely personal. The Data Crow way. -
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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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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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TripleA Maps
A collection of all maps and games made for the TripleA game engine
http://www.triplea-game.org/ -
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WorldEdit
Minecraft map editor and mod
WorldEdit is a powerful open-source Minecraft map editing toolkit that allows players, builders, and server administrators to quickly modify large areas of a Minecraft world directly from within the game. Instead of placing or removing blocks individually, WorldEdit provides commands and tools that enable users to select regions of the world and apply transformations to thousands or even millions of blocks at once. This capability makes it extremely useful for constructing large builds, terraforming terrain, repairing damage, or managing multiplayer server worlds efficiently. The tool includes a variety of editing methods such as brushes, shape generation commands, and clipboard operations that allow copying, pasting, and rotating entire structures. WorldEdit can run in both single-player environments and multiplayer servers and is compatible with several modding platforms and server frameworks used in Minecraft Java Edition. -
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MCinaBox
A Minecraft: Java Edition Launcher for Android
A Minecraft Java Edition Launcher on Android. MCinaBox is an open source project with the goal of building and developing a Minecraft Java Edition launcher that runs on an Android. Front End provides User Management, Minecraft Version Management, Minecraft Game Controller, Minecraft Startup Parameter Generation, Configuration Backend, Configuration and Management functions to reduce the workload of complete launcher development. -
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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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RuneLite
Open source Old School RuneScape client
RuneLite is a free, open-source client for Old School RuneScape that enhances the gaming experience with a wide range of customizable features and plugins. It offers players advanced tools and overlays that improve gameplay, such as detailed stats tracking, map enhancements, and real-time notifications. The client is developed in Java and maintained by a large community of contributors, ensuring regular updates and bug fixes. RuneLite is designed to be lightweight and efficient, running smoothly alongside the original game client without impacting performance. It also supports easy integration with third-party APIs and offers a robust plugin framework for customization. Licensed under the BSD 2-clause license, RuneLite encourages community contributions and open collaboration. -
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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, -
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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.