Browse free open source Java Game Mods and projects below. Use the toggles on the left to filter open source Java Game Mods by OS, license, language, programming language, and project status.

  • Auth for GenAI | Auth0 Icon
    Auth for GenAI | Auth0

    Enable AI agents to securely access tools, workflows, and data with fine-grained control and just a few lines of code.

    Easily implement secure login experiences for AI Agents - from interactive chatbots to background workers with Auth0. Auth for GenAI is now available in Developer Preview
    Try free now
  • AI-powered service management for IT and enterprise teams Icon
    AI-powered service management for IT and enterprise teams

    Enterprise-grade ITSM, for every business

    Give your IT, operations, and business teams the ability to deliver exceptional services—without the complexity. Maximize operational efficiency with refreshingly simple, AI-powered Freshservice.
    Try it Free
  • 1
    PojavLauncher

    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.
    Downloads: 1,586 This Week
    Last Update:
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  • 2
    Roblox anti-AFK

    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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    Downloads: 2,969 This Week
    Last Update:
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  • 3
    MCA Selector

    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.
    Downloads: 552 This Week
    Last Update:
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  • 4
    Hello Minecraft! Launcher

    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.
    Downloads: 275 This Week
    Last Update:
    See Project
  • Gen AI apps are built with MongoDB Atlas Icon
    Gen AI apps are built with MongoDB Atlas

    The database for AI-powered applications.

    MongoDB Atlas is the developer-friendly database used to build, scale, and run gen AI and LLM-powered apps—without needing a separate vector database. Atlas offers built-in vector search, global availability across 115+ regions, and flexible document modeling. Start building AI apps faster, all in one place.
    Start Free
  • 5
    MCinaBox

    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.
    Downloads: 79 This Week
    Last Update:
    See Project
  • 6
    Arclight

    Arclight

    A Bukkit(1.19/1.20) server implementation in modding environment

    A Bukkit server implementation on common mod loaders.
    Downloads: 55 This Week
    Last Update:
    See Project
  • 7
    Sodium

    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.
    Downloads: 52 This Week
    Last Update:
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  • 8
    BedrockConnect

    BedrockConnect

    Join any Minecraft Bedrock Edition server IP on Xbox One

    On Minecraft Bedrock Edition, players on Xbox One, Nintendo Switch, and PS4/PS5 are limited to playing on 'Featured Servers' approved by Mojang/Microsoft. These players are not able to join servers via an IP/address. This is an issue for me and others, as the server community on Java edition was one of the major parts that made Minecraft what it was, and what also made the servers that are now considered 'Mojang Server Partners' what they are today. I wanted to fix this, so I made a solution that anyone can set up easily.
    Downloads: 23 This Week
    Last Update:
    See Project
  • 9
    DS3Windows

    DS3Windows

    DS3Windows allows you to use a DualShock 3 Controller on your PC

    DS3Window is an open-source program that will allow someone to get the experience of using a Playstation 3 DualShock Controller on a PC by emulating a Xbox 360 Controller. ⚠️Sometimes Windows will show unknown application error, click "More info" then click "Run anyway".
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    Downloads: 327 This Week
    Last Update:
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  • Build Securely on Azure with Proven Frameworks Icon
    Build Securely on Azure 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
  • 10
    Skript

    Skript

    Skript is a Bukkit plugin which allows server admins

    Skript is (surprise, surprise) a scripting plugin for the Bukkit platform. It is easy to use for simple tasks, but you can also create really complex things with it. The syntax of Skript is close to English, but it is still not magic. While you might succeed with experimentation for simple tasks, for anything more complex you will need some guidance. You will find all supported features of the plugin here, along with some useful examples. We don't have tutorials yet, but you can find good ones using whatever search engine you prefer. Skript requires Spigot to work. You heard it right, CraftBukkit does not work. Paper, which is a fork of Spigot, is recommended; it is required for some parts of Skript to be available. Skript supports only the latest patch versions of Minecraft 1.9+. For example, this means that 1.16.5 is supported, but 1.16.4 is not. Testing with all old patch versions is not feasible for us.
    Downloads: 19 This Week
    Last Update:
    See Project
  • 11
    This is a mod to minecraft aimed at providing advanced building capabilities to the game.
    Downloads: 72 This Week
    Last Update:
    See Project
  • 12
    ViaVersion

    ViaVersion

    Allows the connection of newer clients to older server versions

    Allows the connection of higher client versions to lower server versions - it works on any platform you can think of. The base ViaVersion jar runs on Paper and Velocity. We also have projects integrating ViaVersion to run on Fabric, Forge, Bungee, Sponge, or as a standalone proxy to join from basically any client version on any server version from the past decade. See HERE for an overview of the different Via* projects. Note that ViaVersion will be able to run best on either Paper servers or through ViaFabricPlus due to having direct access to client/server state and more extensive API.
    Downloads: 12 This Week
    Last Update:
    See Project
  • 13
    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.
    Leader badge
    Downloads: 311 This Week
    Last Update:
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  • 14
    Lithium (for Fabric)

    Lithium (for Fabric)

    A Fabric mod designed to improve the general performance of Minecraft

    A general-purpose optimization mod for Minecraft, improving server and client performance.
    Downloads: 11 This Week
    Last Update:
    See Project
  • 15
    Iris

    Iris

    A modern shaders mod for Minecraft compatible with existing OptiFine

    Iris was created to fill a void that I saw in the Minecraft customization and graphical enhancement community: the lack of an open-source shaders mod that would let me load my favorite shader packs on modern versions of the game, while retaining performance and compatibility with modpacks. OptiFine, the current dominant mod for loading shader packs, has restrictive licensing that firmly stands in the way of any sort of tinkering, and is fairly notorious for having compatibility issues with the mods that I like. It's also mutually incompatible with Sodium, the best rendering optimization mod in existence by a large margin. ShadersMod was never updated past 1.12, and it lacks support for many of the many modern popular shaderpacks. So I created Iris, to try and solve these issues, and also address many other longstanding issues with shader packs. I first and foremost develop Iris to meet my own needs of a performance-oriented shaders mod with good compatibility.
    Downloads: 10 This Week
    Last Update:
    See Project
  • 16
    VulkanMod

    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.
    Downloads: 8 This Week
    Last Update:
    See Project
  • 17
    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: 238 This Week
    Last Update:
    See Project
  • 18
    SpongeAPI

    SpongeAPI

    A Minecraft plugin API

    A mature Minecraft plugin API (not including an implementation), licensed under the MIT License. If you do not have Gradle installed then use ./gradlew for Unix systems or Git Bash and gradlew.bat for Windows systems in place of any 'gradle' command. Sponge will use a javac version of at least 11. If an older JDK is used to launch Gradle, JDK 11 will be downloaded automatically. SpongeAPI is the tool developers use to create plugins for the Sponge platform.
    Downloads: 7 This Week
    Last Update:
    See Project
  • 19
    Roblox Auto Clicker & Anti-AFK

    Roblox Auto Clicker & Anti-AFK

    Don't get kick from Roblox for being AFK.Don't click use auto clicker.

    With Roblox Plus, you won't get kicked from Roblox because of being AFK. You don't have to click by yourself, let auto clicker do it for you. You can open and close the program at the same time you play Roblox. Program made by: HorizonPublish
    Downloads: 58 This Week
    Last Update:
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  • 20
    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: 6 This Week
    Last Update:
    See Project
  • 21
    minecraft-world-downloader

    minecraft-world-downloader

    Download Minecraft worlds, extend server's render distance. 1.12.2

    A Minecraft world downloader that works as a proxy server between the client and the server to read & save chunk data. Download multiplayer worlds by connecting to them and walking around. Chunks can be sent back to the client to extend the render distance.
    Downloads: 6 This Week
    Last Update:
    See Project
  • 22
    DiscordSRV

    DiscordSRV

    Discord bridging plugin for block game

    A plugin that links Minecraft servers to Discord channels, providing chat synchronization and notifications between both platforms.
    Downloads: 5 This Week
    Last Update:
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  • 23
    Slimefun 4

    Slimefun 4

    A unique Spigot/Paper plugin that looks and feels like a modpack

    A Minecraft plugin adds hundreds of new features, such as advanced machines and magic, to enhance vanilla gameplay.
    Downloads: 5 This Week
    Last Update:
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  • 24
    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: 5 This Week
    Last Update:
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  • 25
    Project Malmo

    Project Malmo

    A platform for Artificial Intelligence experimentation on Minecraft

    How can we develop artificial intelligence that learns to make sense of complex environments? That learns from others, including humans, how to interact with the world? That learns transferable skills throughout its existence, and applies them to solve new, challenging problems? Project Malmo sets out to address these core research challenges, addressing them by integrating (deep) reinforcement learning, cognitive science, and many ideas from artificial intelligence. The Malmo platform is a sophisticated AI experimentation platform built on top of Minecraft, and designed to support fundamental research in artificial intelligence. The Project Malmo platform consists of a mod for the Java version, and code that helps artificial intelligence agents sense and act within the Minecraft environment. The two components can run on Windows, Linux, or Mac OS, and researchers can program their agents in any programming language they’re comfortable with.
    Downloads: 4 This Week
    Last Update:
    See Project
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