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

    Blaze Machines

    Blaze Machines is a OS emulator modification for Minecraft

    Downloads: 9 This Week
    Last Update:
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  • 2
    Find releases and source code repositories from Files and Git.
    Downloads: 9 This Week
    Last Update:
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  • 3
    JNBT is a Java NBT (Named Binary Tag) library. It provides easy to use NBTInputStream and NBTOutputStream classes to read and write NBT files. NBT is the level format used by the Minecraft game.
    Downloads: 6 This Week
    Last Update:
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  • 4

    Game Mode API for Minecraft

    Game Mode API for Minecraft

    The Game Mode API for Minecraft allows developers to easily add new game modes to Minecraft and provides the means to heavily customise Minecraft game play while minimising incompatibilities with other mods.
    Downloads: 5 This Week
    Last Update:
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  • 5
    JavaForce

    JavaForce

    Java Development Framework

    JavaForce (JF) is a Java library extending the capabilities of Java. It includes a VoIP stack and native bindings for FFMPEG, OpenGL, and Camera (Windows, Linux and Mac). Includes many apps such as jfPhone, jfPBX, jfPaint, jfVideo Creator, etc. JF is the core of the Java/Linux Operating System : jfLinux.sf.net JF is also used to create another Minecraft clone : jfcraft.sf.net Moved to github.com/pquiring/javaforce
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    Downloads: 5 This Week
    Last Update:
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  • 6
    mod_MumbleLink

    mod_MumbleLink

    Positional Audio Communication for Minecraft with Mumble

    A Mod so that Minecraft now natively supports Mumble's positional audio feature. This means: Directional and positionally attenuated VOIP in relation to the game world. Please visit the Forum for information about the newest Version! Main Forum-Thread: http://www.minecraftforum.net/forums/mapping-and-modding/minecraft-mods/1272675 TheSkorm's Fork on GitHub: https://github.com/TheSkorm/mod_mumblelink Mumble: http://mumble.sourceforge.net Donations are greatly appreciated: https://sourceforge.net/donate/?user_id=2370023
    Downloads: 1 This Week
    Last Update:
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  • 7
    Minecraft by zyczu

    Minecraft by zyczu

    Minecraft launcher

    Downloads: 3 This Week
    Last Update:
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  • 8
    Minecraft Name Checker

    Minecraft Name Checker

    Minecraft Name Availability Checker

    A Minecraft tool that checks to see if an account name is available or currently taken. The program is written entirely in Java and exported to an executable. A text file (one name per line) can also be read and checked. An output file "available.txt" will be created with usable names in the same directory as the selected read file.
    Downloads: 2 This Week
    Last Update:
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  • 9
    A small save synchronization and backup utility for Minecraft. Currently Windows-only.
    Downloads: 2 This Week
    Last Update:
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  • 10

    Cinema for Bukkit

    Animates Blocks.

    ever wanted to make a pixelart movie in minecraft? well now you can!
    Downloads: 1 This Week
    Last Update:
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  • 11
    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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  • 12
    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: 1 This Week
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  • 13
    Cartocraft is a simple top-down, orthogonal Minecraft map renderer with ambient occlusion and lighting.
    Downloads: 1 This Week
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  • 14
    Downloads: 1 This Week
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  • 15
    LandsDiscordBot

    LandsDiscordBot

    Adds Discord Functionality to Lands.

    This plugin adds Discord functionality to the spigot plugin Lands. It allows land owners to create a channel for their land so they can chat from Discord with their land members online at the Minecraft server. Also you can view top lands in Discord, receive land and war notifications and more to come.
    Downloads: 1 This Week
    Last Update:
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  • 16
    MINECRAFT2D hahn2014

    MINECRAFT2D hahn2014

    Minecraft side viewed game made in Java

    This started when one of my friends said I couldn't possibly make a full blown video game in Java, and know I have made Minecraft in Java and it consists of an inventory, blocks, and more!
    Downloads: 1 This Week
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  • 17
    Downloads: 1 This Week
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  • 18

    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: 1 This Week
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  • 19
    SuperLauncher is an alternative launcher for Minecraft
    Downloads: 1 This Week
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  • 20

    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:
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  • 21
    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:
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  • 22
    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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  • 23
    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
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  • 24
    Bukkit RPG plugin for Arvina minecraft world.
    Downloads: 0 This Week
    Last Update:
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  • 25

    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:
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