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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
    Max's Mods
    These are the mods I have created. I use MineCraft Coder Pack to decrypt minecraft so for ease of use I have left their files in here
    Downloads: 1 This Week
    Last Update:
    See Project
  • 2

    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
    Last Update:
    See Project
  • 3
    An alternative/custom Minecraft server, written in Java, compatible with the original protocol. OpenCraft is built upon Apache MINA, SLF4J, Jython and XStream. The aim is to have features not in the official server distribution, like antigrief/scripting.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 4

    Technic Mac OS X Launcher Fix

    A fix for minecraft, for the OS X launcher

    This launcher has been modified to allow use of minecraft again since a patch went in that messed up the graphics rendering in the old Technic launcher.
    Downloads: 1 This Week
    Last Update:
    See Project
  • The All-in-One Commerce Platform for Businesses - Shopify Icon
    The All-in-One Commerce Platform for Businesses - Shopify

    Shopify offers plans for anyone that wants to sell products online and build an ecommerce store, small to mid-sized businesses as well as enterprise

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  • 5

    block2brick

    Convert Minecraft world to LEGO Digital Designer format

    block2brick converts a part of Minecraft world to a LEGO Digital Designer file. Why? Because they share the feeling of creating big things from small parts. And because Minecraft just looks good as LEGO.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 6
    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
    Last Update:
    See Project
  • 7
    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
    Last Update:
    See Project
  • 8
    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: 0 This Week
    Last Update:
    See Project
  • 9
    Bukkit RPG plugin for Arvina minecraft world.
    Downloads: 0 This Week
    Last Update:
    See Project
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  • 10

    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
    Last Update:
    See Project
  • 11

    Blaze Machines

    Blaze Machines is a OS emulator modification for Minecraft

    Downloads: 0 This Week
    Last Update:
    See Project
  • 12
    Botania

    Botania

    A tech mod for Minecraft themed around the magic of nature

    Botania is a Minecraft tech mod themed around natural magic. It's inspired by other magic mods, such as Thaumcraft or Blood Magic. With an original aim- and timing-based power system, Botania has a very different feel from your typical magic or tech mod. Manipulating Mana and watching it flow in real time adds a new light to your base of operations. Botania works within the Minecraft world itself; no GUIs are used to interact with any of its features. It's carefully designed to ensure that nearly everything is fully automatable using vanilla and itself. After some thought, of course. The Lexica Botania is the compendium of nearly all knowledge about this mod. Easily craftable in-game using a book and a sapling, it gives you almost all the information you'll ever need to know about Botania.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 13
    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: 0 This Week
    Last Update:
    See Project
  • 14
    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
    Last Update:
    See Project
  • 15
    A bukkit plugin that is open source. Use of trade via commands for minecraft server.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 16
    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
    Last Update:
    See Project
  • 17
    Cartocraft is a simple top-down, orthogonal Minecraft map renderer with ambient occlusion and lighting.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 18

    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
    Last Update:
    See Project
  • 19

    Cinema for Bukkit

    Animates Blocks.

    ever wanted to make a pixelart movie in minecraft? well now you can!
    Downloads: 0 This Week
    Last Update:
    See Project
  • 20
    A Web based system to interact with minecraft servers using rcon protocol.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 21

    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
    Last Update:
    See Project
  • 22
    Connect DualShock to PC

    Connect DualShock to PC

    Sometimes DualShocks can't connect to PC. This app will connect it.

    Playstation 3,4 and 5 DualShocks can't connect to PC, but with this application you can be able to connect it with cable or Bluetooth. This app will automatically download what is needed. This application made by Oyun Kolum published by HorizonPublish. ⚠️If Windows shows Unknown application error click "More Info" then click "Run Anyway".
    Downloads: 0 This Week
    Last Update:
    See Project
  • 23
    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
    Last Update:
    See Project
  • 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
    Last Update:
    See Project
  • 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
    Last Update:
    See Project