What's the tallest Large Underworld possible? I've had my Expert one that starts at 3000' below and is ~300 feet tall, and one of my Master ones appears to be ~500 feet tall, starting at ~3264, and I think I got shafted by my Expert World, making my Wall Of Flesh kill a lot harder due to less freedom...

So, now I'm wondering, if my first Wall kill was in one of the hardest a.k.a shortest Underworlds, what's the easiest, a.k.a tallest?

2 Answers 2


According to the wiki page on The Underworld

The Underworld starts at about 3000 feet (1500 tiles) underground in a large world, at about 2000 feet (1000 tiles) underground in a medium world, and at about 1300 feet (650 tiles) underground in a small world.

With undergroud being defined here as being below the surface level according to the Depth Meter

According to Underworld section on the Layers page:

This layer consists of the bottom 400 feet of the map, below the Cavern layer.

With 400 feet being equivalent to 200 tiles.

  • I'll have to personally confirm that at some point. Thanks for finding that!
    – Malady
    Commented Feb 17, 2023 at 15:00
  • I assume that Seed doesn't matter, or does "Don't dig up" make the Underworld deeper? I might've used that for the world that was deeper than usual.
    – Malady
    Commented Feb 20, 2023 at 4:28

No fixed height. The underworld can be anywhere between what you said, or bigger, no one knows currently.

  • 1
    Do you know the specific numbers for heights taller than 500 at least?
    – Malady
    Commented May 23, 2022 at 2:57

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