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The new Nether update has been released.

I am asking about what is known about how the generation of nether fortresses will've been affected by this update.

My old strategy for quickly locating a nether fortress was to travel in the x direction as one is most likely to appear this way.

I've launched up multiple worlds and have attempted to use that strategy but it is to no avail - I often travel thousands of blocks without finding one.

What is the most efficient way to now locate nether fortresses in Minecraft 1.16? Are they significantly rarer? Is it inevitable that on runs of Minecraft I'm pretty much always going to have to travel thousands of blocks for them?

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  • Nether Fortress only spawn in the nether wasteland. The nether wasteland is what the old nether looked like, now there's just more biomes.
    – Diehe
    Jun 24 '20 at 20:51
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1.16 changed the Nether Fortress spawning algorithm quite a bit.

First off, their layout has been significantly more randomized:

enter image description here

The best patterns I can spot are occasional lines of 3-5 fortresses at random angles, so if you found two, traveling in the same direction as the line connecting the two (or opposite direction) can yield another.

Another problem is frequency of their spawning. Not only is the generation more rare, it's now biome-dependent. Specifically, generation of a fortress may begin only in Nether Wastes, Basalt Deltas and Soulsand Valley. Fortresses may encroach into Warped Forest and Crimson Forest, if their generation process expands them into these biomes, but they won't be found in the middle of these - so if you encounter large instances of these biomes, avoid - likely the "bald patches" in the attached example map correspond to these biomes.

As for the most efficient strategy of locating the fortresses, that largely depends on how cheaty you want to get - other than trying to extrapolate two fortress locations into a line, or Elytra with unbreaking III and a couple stacks of fireworks for flying randomly, I don't think there are any entirely un-cheaty ways.

An easy way is to paste the world seed into the Fortress Finder app. Using the Minihud mod with structure bounding boxes enabled will let you spot the bounding box of a fortress long before its structures enter your view. Traveling over the Nether roof on Elytra or horseback allows you to cover massive distances safely, and either using freecam mode e.g from the Tweakeroo mod, or the composter Xray glitch to peer through the roof and see what structures are underneath in the Nether proper. Or just use the /locate command.

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There are infinite nether fortresses in the nether. They spawn in rows every 200-400 blocks along the world's North/South axis. Once you find the first one, just keep walking north or south from it to find another

Hope this helps

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  • 2
    This information was valid until 1.15. In 1.16 the rules have changed quite a bit and this is now completely invalid.
    – SF.
    Jul 23 '20 at 13:05
  • Oh.. I didn't pay minecraft for a while and just said what I knew.. Thanks.
    – eShadow
    Jul 24 '20 at 4:41

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