Minecraft world downloader

World Downloader is a mod that allows making backups of Minecraft worlds. You can view the Minecraft forum thread here. Project wiki; issue tracker.

This is a continuation dslake's original version.

How do I compile this?

You first need to set up begradle. Right now, this can be done by downloading from this repo and then running . Later this'll be put into a maven repo so that it doesn't need to manually be installed, but at this phase in development, it needs to manually be done.

Once that is set up, you should be able to get everything to work by running . Hopefully. If something doesn't work quite right, it may be a bug with begradle or another part of the build system; there should be a notification in the most common cases as to what you need to do.

To compile for a single Minecraft version, run (for instance, ).

What is this branch?

I'm going to be putting v4 development in this branch.

Why a new version?

I have been working on cleaning up the build process so that I can build for all versions of Minecraft at the same time, rather than developing against one version (usually 1.8) and porting to all the other versions at once.

However, the actual code for the project will remain more or less exactly the same - just moved to a new location within the project. It's not a rewrite, just a refactoring.

Why v4 specifically?

There's already and branches separate from the branch. seems like the next version. Plus, 4 is the IEEE-vetted random number.

Where's the old code?

On separate branches - , and //...

A Minecraft world downloader that works by intercepting & decrypting network traffic between the client and the server to read & save chunk data. Chunks can be sent back to the client to extend the render distance.

Downloads

Latest Windows release (GUI): world-downloader.exe

Cross-platform jar (GUI & commandline): world-downloader.jar

Features

• Requires no client modifications and as such works with every game client, vanilla or not
• Automatically merge into previous downloads or existing worlds
• Save chests and other inventories by opening them
• Extend the client's render distance by sending chunks downloaded previously back to the client
• Overview map of chunks that have been saved:

Requirements

• Java 16 or higher
• Minecraft version 1.12.2+ // 1.13.2+ // 1.14.1+ // 1.15.2+ // 1.16.2+ // 1.17+

Basic usage

Download the latest release and run it. Enter the server address in the address field and press start. Instead of connecting to the server itself, connect to in Minecraft to start downloading the world.

Additional settings can be changed in the other tabs of the settings window.

Commandline

Download the cross-platform and run it using the commandline:

Then connect to in Minecraft to start downloading the world. The world will be saved to the by default.

Other arguments can be specified to change the behaviour of the downloader. For example, render distance extending can be enabled by setting the render distance with :

Options

Additional options are available by running .

Running on Linux

To easily download the latest release using the terminal, the following commands can be used:

When running headless Java, the GUI should be disabled by including the GUI option:

Some linux distributions may require for the GUI to work:

Building from source

A Minecraft world downloader that works by intercepting & decrypting network traffic between the client and the server to read & save chunk data.

Features

• Requires no client modifications and as such works with every game client, vanilla or not
• Automatically merge into previous downloads or existing worlds
• Save chests and other inventories by opening them
• Optional GUI to show overview of which chunks have been saved:

Requirements

• Java 9 or higher
• Minecraft version 1.12.2+ // 1.13.2+ // 1.14.1+ // 1.15.2+ // 1.16.0+

Basic usage

Download the latest release and execute the jar file using the commandline by running:

Then connect to in Minecraft to start downloading the world. The world will be saved to the by default.

Options

Running on Linux

To easily download the latest release using the terminal, the following commands can be used:

When running headless Java, the GUI should be disabled by including the GUI option:

Building from source

Join a server, and then pause and select “Download this world”. If this is your first time using the mod on that server, make sure to chose the appropriate multiworld mode – if the server *only* has 3 worlds (the overworld, nether, and end), multiworld is not needed, but if it has any more worlds or has worlds beyond those official worlds, multiworld is required or you may end up overwriting data from one world with that of another. After that, you may wish to pause again and click the 3 dots next to the download button, allowing you to further configure the download options for that world.

Once you’ve started the download, you need to travel around the world. World Downloader will only save chunks that you can see – if the game never loads it, it will not be saved. (However, once a chunk is loaded, the entire vertical section is saved.) For most servers, this is a range of 10 chunks (160 blocks), but it might be more or less depending on the server. You will need to open chests and some other blocks for them to be saved.

To make use of the mod, simply join a server, pause the game, and click “Start download”. If the server is multiworld (has more than the 3 vanilla minecraft dimensions), make sure to indicate as such. Travel around the world, making sure to load the parts you want to save, and opening any chests / other containers, and when you are done, pause, and click “Stop downloading”.

This is the beginning of a (hopefully) much larger clock mod based on Mumfrey's Liteloader example mod for 1.9. I've changed the code a bit to make this a clock that can show the time of day in Minecraft, as well as the current time displayed on your computer as the mod was originally programmed to do. I've also reorganized the code to allow for new features I have planned for later updates. At this point in time, this mod only provides a clock face and hands for the Minecraft world time and the time your computer displays -- perfect for use with fullscreen.This is the beginning of a (hopefully) much larger clock mod based on Mumfrey's Liteloader example mod for 1.9. I've changed the code a bit to make this a clock that can show the time of day in Minecraft, as well as the current time displayed on your computer as the mod was originally programmed to do. I've also reorganized the code to allow for new features I have planned for later updates. At this point in time, this mod only provides a clock face and hands for the Minecraft world time and the time your computer displays -- perfect for use with fullscreen.