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1024000^2 Blocks, 2B2T Minecraft Server World Download Project, and Discoveries

124 points by exploraz

by lanyard-textile

5 subcomments

For those who don't know: 2b2t is a famous minecraft server known for its true "anarchy" configuration.
You can do absolutely anything on it. Modded client, x-raying, item duplication. There are no area protections. PvP enabled.
It is difficult to leave spawn :)

by nom

0 subcomment

This was kept completely secret, so three days ago a separate group released their 200k² world download.
https://www.reddit.com/r/2b2t_Uncensored/comments/1tefffd/in...
Ups.

by MattCruikshank

5 subcomments

I'm so continuously confused why Minecraft doesn't have a show-off mode where a team of people can build something, and then someone else can spectate it, without causing undue server load.
I should be able to give you a URL to some location, and when you click it, it opens up Minecraft, streams the blocks, and you're viewing it.
minecraft://server/loc?w=0&x=0&y=0&z=0
w is the overworld, nether, end, etc.
And if you want to set up a server where you and your friends can interact with each other and make edits, the server should be able to stream blocks from some backing server, but copy-on-write them to your own local storage.
How is this not a thing?
If you want to be really awesome, set it up like bittorrent, where you can share the load, so the central server isn't hammered.
And if bittorrent doesn't really work as a model, then set it up so that "downloader pays" for bandwidth, plus a small royalty for the creator. As a downloader, I get to set up rate limits, etc, to not accidentally spend more than I want to, etc.
This whole 2b2t would cost $2,111.04 to download from AWS, if I'm doing the math right. But that's a trillion blocks. You don't need a trillion blocks to enjoy flying around some awesome maps.

by Tiberium

2 subcomments

2B2T really has an extremely interesting and long history, and some of the most interesting exploits/security vulnerabilities found just for it, for example https://2b2t.miraheze.org/wiki/Nocom where the attackers had a blunt server DoS and through it influenced the server owner to report it to PaperMC, and the fix for the DoS gave them ability to track other players just as they had hoped.
> In July 2018, 0x22 and Babbaj created a coordinate exploit, using the groundwork laid out in the lag exploit. The two theorized that, if the server didn't return a response for unloaded chunks, but returned a response for loaded chunks, the rough location of players in 2b2t could be approximated. However, prplz's patch returned a response regardless of whether a chunk was loaded or unloaded, requiring a second patch to Paper that would only return a response if the chunk was loaded.
> Knowing that the issue would be resolved if Hausemaster reported it to Paper, likely through the method they laid out, 0x22 and Babbaj began intentionally, repeatedly, and blatantly sending CPacketPlayerDigging packets, causing the Paper watchdog process to output a stack trace, which included the line added by prplz.

by skerit

2 subcomments

2b2t is so interesting. It is a toxic place, yet you can find really nice things, builds, messages, ... It's fascinating.

by zimpenfish

0 subcomment

https://www.youtube.com/watch?v=HDyze1YlOrI is a good explanation of what they did

by arboles

2 subcomments

> Providing a Torrent for this amount of data is not easy whatsoever. We are currently working on creating a Torrent that includes all data, but this may take a few weeks.
What do they mean by this? I understand that it would be a download on the order of 26TiB (if we extrapolate from the recent 200k^2 download, which is a ~1TiB torrent[1]). If bandwidth costs are the issue (certainly it's an issue) they could throttle their seeding speed and let the swarm seed it. That's what bittorrent is for.
[1] https://www.reddit.com/r/2b2t_Uncensored/comments/1tefffd/in...

by purrcat259

0 subcomment

This is a great video trying to understand the artistic side of 2b2t as a persistent world (rather than the anarchy its more well known for): https://www.youtube.com/watch?v=09m5BAkkOtw

by jetbalsa

0 subcomment

Ah, The 4chan of Minecraft servers, a silly place.

by pizzathyme

4 subcomments

Maybe a dumb question but since 2B2T (as I understand it) is a single instance of everyone modifying it to their heart's content, why does the download look like the standard biomes of a fresh minecraft map?

by jdw64

1 subcomments

Does anyone happen to have world data from a Minecraft survival server? Could you please share it with me? It would be great if it has some player history included. I'm trying to gather about 10 of them, but it's not easy.

by naruhodo

0 subcomment

> A search for vertical 5x5 obsidian/crying obsidian pinwheels was also made, and only 1258 were found, with only 613 within a 25k radius of spawn. There were many more than this in December of 2025, so this is either a sign of other players removing them, or the owner(s) of 2b2t worldediting them all out at some point.
I did Nazi that coming.

by palinnilap

0 subcomment

Minecraft world downloading is an interesting problem, because attempting to solve it by brute force (Loading all chunks in x radius) increases the problem space, because most likely not all of those chunks have been loaded before. So brute forcing it increases the amount of data you must download.

by wg0

3 subcomments

Can someone please explain in layman's terms to me what this means?
Background: Only heard the name of Minecraft.

by nektro

0 subcomment

woah, the web map viewer even has parallax when zoomed in

by Fokamul

0 subcomment

$3000 for this? Wouldn't be cheaper to just hack 2b2t DB and download it?

by sciencejerk

3 subcomments

With severe weaponized autism, the help of several people involved, thousands of dollars spent, and countless hours wasted, we present you the largest world download project ever
Never underestimate the power of severe weaponized autism!