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.

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  • 1

    Minecraft last login decoder/recovery

    Decodes the login credentials stored by the minecraft launcher

    This simple application written in java decodes the login credentials stored in the file named "lastlogin" in your minecraft folder. DEPRECATED AFTER MC 1.6
    Downloads: 2 This Week
    Last Update:
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  • 2
    Minecraft Add-On Manager
    The "Minecraft Add-On Manager" is a powerful tool which makes things like modding or installting texturepacks much easier.
    Downloads: 1 This Week
    Last Update:
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  • 3
    Minecraft Application Backup Utility

    Minecraft Application Backup Utility

    Backup & restore Minecraft worlds with one click.

    Minecraft Application Backup Utility or formally known as Mabu, is a backup & restore tool for Minecraft which can be used on either Windows, Linux or OS X systems. With a simple and user-friendly design, you can create backups and restore from previous backups effortlessly.
    Downloads: 1 This Week
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  • 4
    Stone Lantern V1.0 (MC 1.5.1/1.5.2)
    Mod Name: Stone Lantern Default ID: 184 Version: 1.0 MC Ver's: 1.2.5, 1.3.1, 1.3.2, 1.4.2, 1.4.4, 1.4.5, 1.4.6/1.4.7, 1.5.0, 1.5.1/1.5.2 LU: [13.04.04] This mod adds a craftable Stone Lantern to Minecraft. I made this mod so you can easily craft as many Lanterns as you need. Why this is needed in Minecraft: - Jack-O-Lanterns: I got sick of having to find Pumpkins. Then having to plant, wait for them to grow and harvest them. You can't even place Jack-O-Lanterns without a block under them first. Who wants to look at that all of the time anyway? - Redstone Lanterns: You literally have to go to Hell (The Nether) and back to craft them. And they have to be powered by a Redstone Torch or a Switch. Too much of a pain to craft, and not Renewable. I hope Mojang adds this to Minecraft in a future update. PS: Source Code is also included in the zip files. :-)
    Downloads: 1 This Week
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  • GWI: On-demand Consumer Research Icon
    GWI: On-demand Consumer Research

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  • 5
    Minecraft Portable

    Minecraft Portable

    Portable Minecraft launcher for macOS

    A portable Minecraft launcher for macOS. This is the legacy Java-based Minecraft launcher. Minecraft, and the Minecraft Logo are trademarks of Mojang AB. http://mojang.com/, http://minecraft.net/
    Downloads: 1 This Week
    Last Update:
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  • 6

    MinecraftError

    Simple error logging for Minecraft!

    https://github.com/medsouz/MinecraftError http://www.minecraftforum.net/topic/533027-minecrafterror/ See github for full project page, pull requests, and issue tracking.
    Downloads: 1 This Week
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  • 7

    THub

    Hub plugin for minecraft

    Simple hub plugin for minecraft
    Downloads: 1 This Week
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  • 8
    Accessibility Plus Extended

    Accessibility Plus Extended

    A minecraft java mod that adds more accessibility options.

    A minecraft java mod that adds more accessibility options like ore detector, fall detector, read blocks and entities. Join the discord server to get updates, request feature or report bugs. This project is an extension of Accessibility Plus by LuisSanchez-Dev. New Keybindings:- B = Open settings menu Y = Lock onto nearby mob entity Alt + Y = Disable locking New Commands findlava = Find the closest lava source block and narrate it's position relative to the player or play a sound at the source block. Note: this feature is currently experimental and has some bugs findwater = Find the closest water source block and narrate it's position relative to the player or play a sound at the source block. Note: this feature is currently experimental and has some bugs getxp = Narrate the current xp of the player getfullscreen = Tell if minecraft is in fullscreen or not
    Downloads: 0 This Week
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  • 9
    Information Machines: Two blocks that can break the blocks that are at the sides, according to the position that has been previously placed. The advanced blockbreaker is more fast and have silk touch. Life: Add cherry tree, cherries and some recipes. So when I go Mojang Update Minecraft updating it, and if I can not, at least, I posted the code. The code is 100% GPL, you can use it for whatever you can think of. The source code it's on Github - https://github.com/alca259/alca Any help to solve bugs, it's welcome. Installation For install, drop the jar in mods folder. Forge is required. Recipes in Wiki
    Downloads: 0 This Week
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  • Supplier Diversity Management Software Icon
    Supplier Diversity Management Software

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  • 10
    Bukkit RPG plugin for Arvina minecraft world.
    Downloads: 0 This Week
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  • 11

    BestockTweaks

    A mod for minecraft

    As an avid Minecraft player, there are many times I felt both the game and available mods had some simple features missing, this mod attempts to rectify that with as much compatibility as possible.
    Downloads: 0 This Week
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  • 12

    Blaze Machines

    Blaze Machines is a OS emulator modification for Minecraft

    Downloads: 0 This Week
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  • 13
    A mod for craftbukkit (Minecraft server moded) that allow player to become Vampire able to flight and stronger than player, but will burn at the Sun.
    Downloads: 0 This Week
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  • 14
    A bukkit plugin that is open source. Use of trade via commands for minecraft server.
    Downloads: 0 This Week
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  • 15
    Das Plugin PVPPlugin für den Minecraft Server Mod ist ein Plugin, dass die Tode und Kills bei einem Arena TDM(Team Deathmatch) Kampf zählt.
    Downloads: 0 This Week
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  • 16
    Cartocraft is a simple top-down, orthogonal Minecraft map renderer with ambient occlusion and lighting.
    Downloads: 0 This Week
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  • 17

    Charlotte's Utilities

    Charlotte's Utilities mod for Minecraft Forge made by Sharshar

    Charlotte's Utilities is my first adventure into modding Minecraft. I wanted to have some extra utilities and things for my server that I couldn't find in other mods, or if I could I was able to think of a different way that I would prefer to implement them. At its core, this mod pack is just a collection of utilities that I feel improve the game experience. Everything is fully configurable in the config file so you can change, enable, or disable whatever you feel is best for you! The mod has quickly developed into one that's aimed primarily at the builders of the Minecraft community, and I plan to expand on that idea going into the future. My goal is to provide new, unique, and easy ways to allow players to construct whatever comes to their mind. I take feedback very seriously and if you have a good idea I won't hesitate to implement it. Development of Charlotte's Utilities is made possible by Full Effect Hosting
    Downloads: 0 This Week
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  • 18

    Cinema for Bukkit

    Animates Blocks.

    ever wanted to make a pixelart movie in minecraft? well now you can!
    Downloads: 0 This Week
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  • 19
    A Web based system to interact with minecraft servers using rcon protocol.
    Downloads: 0 This Week
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  • 20

    Competitive Minecraft

    A competitive Minecraft mod and map

    This mod is all about making, as the name says, Minecraft into a more comptetitive-oriented game. Therefore this mod is about playing with, and against, your friends. This mod will mainly be focused on Capture the Flag, but will have Spleef-, Tunnel "Defense"- and 4 in-a-row content as well.
    Downloads: 0 This Week
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  • 21
    CraftBukkit-CommandsEX

    CraftBukkit-CommandsEX

    Modular Minecraft server plugin - commands, events, ...

    This project gives you freedom to get a fully-customized plugin for CraftBukkit Minecraft servers. You choose what to include and build it up. No more command collisions, no unnecessary memory and processor overhead on your server.
    Downloads: 0 This Week
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  • 22

    DNS Launcher 2

    DNS Launcher is a improved installer/launcher for the DNS TechPack

    DNS Launcher is a improved installer/manager for the DNS TechPack for minecraft, it gives you the ability to customize and install the modpack quickly and easily for you, giving you complete control of what you do and don't install.
    Downloads: 0 This Week
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  • 23
    Death Plague Gaming - Minecraft Modpack

    Death Plague Gaming - Minecraft Modpack

    This is the official "Death Plague Gaming - Minecraft Server Pack"

    Currently running r1.5.7 This is the source forge for the official mod-pack of the Minecraft Death Plague Gaming Community! Here is a link to how to install the mod-pack! The same tutorial can be found under the files tab located next to the summary tab! https://docs.google.com/document/d/1AbGVy0_6Qyx7xNaicG8KD_oF5kTwfGhcx2qqWP11Mww/edit?usp=sharing I hope you enjoy all my hard work! Please report bugs here! https://github.com/P3rf3ctXZer0/DeathPlagueGaming/issues Source-forge has a very unintuitive ticket system. Contact information Discord-Lobby https://discord.gg/gYFcFNQ Discord-Minecraft Team https://discord.gg/9swcJcD
    Downloads: 0 This Week
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  • 24

    Ender Mobs Mod

    A Minecraft modification which adds new ender type mobs.

    The End is boring? Or are Enderman not enough? Then this is the mod for you: It adds 3 new ender mobs into minecraft, each with its own abillity, for example the EnderNivis can walk in water or rain without taking damage or the EnderIgnis can walk through fire or lava. All of them spawn in the End and on the Overworld in specific biomes.
    Downloads: 0 This Week
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  • 25

    EverFrost

    EverFrost is a Minecraft dimension mod

    The Everfrost is a mod that is in production, with modders Jmax, odedrt9, Methuselah and miniman doing the programming and me as the texturer and idea creator. It is a dimension mod that adds a dimension that includes numerous items and blocks, new dungeon-like structures with lots of fun exploring opportunities, new mobs, and even some new enchantments and potion types.
    Downloads: 0 This Week
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