A random section of the Backrooms I came up with (the picture is AI generated)

Cool level, what number?

IDEK, #173.540007? I don't understand the level numbers thing

Well that's not how they work
There's numbers up to 3999

Basically each level can be reached via another by noclipping, or interacting with something, spending long enough in a level, running far enough, ect
Numbers are given randomly I believe, and past level 11 or so levels aren't necessarily connected to the level with the number before and after, some can lead to many levels, one, or none, being one way trips

level 393 also there is a new entity the jaguar who kills anyone who goes too deep in the jungle but if you are good spirited you can find ancient pyramids from an ancient civilization.

actually its level 1519

new entity the jaguar