MinecraftAtHome – How we found the Minecraft 1.19 Panorama SEED!

The Minecraft 1.19 panorama featuring the new Mangrove Swamp biome was added to the game in Java Edition snapshot 22w15a. On April 13th 2022, the day of the snapshot’s release, the Minecraft@Home team swiftly began work to uncover the seed. Our process is pretty standard by now. Like with any other panorama project,

We extracted the six images that make up the panorama from the game’s files. After creating a recreation server for this project, we used a custom overlay to display the source images over our recreation to aid in accurately rebuilding as much of the world as we needed.

While we were building the recreation, others within the team began working on finding the exact coordinates where the panorama was located. We narrowed down the coordinates using clouds at first, but the full set of coordinates would later be found by MisterX using the rotations of lily pads.

Work on the recreation continued, and within a few days, we had more than enough of the world rebuilt to explore possible methods of cracking the seed. It wasn’t as easy this time around though. We knew the ideal approach would be using the lilypad positions to get the seed.

Unfortunately, using this method efficiently relies on seedcracking techniques that have not yet been fully discovered on Minecraft versions 1.18 or higher. Therefore the only option we had was brute force, the slowest cracking method available. To counter this, we planned to use an FPGA, which is a special kind of chip that can reach

Much higher speeds than a normal CPU. A few members of our Discord server have already experimented with FPGAs, and so they attempted developing code for this project as well. But unfortunately, not much work ended up being done, and all progress ground to a halt.

However, on June 8th, a day after the official release of 1.19, one of our members named Andrew managed to surprise everyone again by finding the seed entirely on his own! Interestingly, his code took less than a second to run despite using the same lilypad brute-forcing technique we originally planned to use.

So, how in the world was he able to do that? The answer is surprisingly simple: Andrew made a few assumptions, one of which turned out to be correct. The seed wasn’t random; it came from manually entered text. When inputting a text seed, the game will convert it into a number that is,

For technical reasons, shorter than randomly generated seeds. This means that there were less seeds that needed to be checked, and so the code was able to check them all in a short amount of time. There is, however, one question that remains unanswered. What text did Mojang enter in the world creation screen?

We attempted to figure this out too, but we weren’t successful, as too many possible strings can produce the same seed. As a result, we may never uncover the true text seed, but if the text is somehow revealed,

We will be sure to pin what we believe to be the correct answer in the comments below this video. We hope you enjoyed our video! Here you can see the seed and coordinates needed to visit the panorama yourself. Make sure to use the version shown for the most correct results.

Please consider subscribing, so you don’t miss any of our future videos and join our Discord server, where you can chat with the community and participate in the next project. In the description, you will find a link to our discord server, links to the credits sheet

For this project, and our website, where you can find more details. From everyone on the Minecraft@Home team, thank you so much for watching!