Very little is known about the actual structure of Level 6, as the level is shrouded in total and complete darkness. No light permeates the level, and light sources brought into the level have no function.
I just recreated this sublevel of backrooms for my backroom game. You might find this interesting
Inside the Backrooms on Steam
Level 6, Backrooms Depths of Reality Wiki
Steam Workshop::Backrooms, negative levels backrooms wikidot
The Main Levels
Backrooms level 6 explained… (PITCH BLACK)
Escape the Backrooms on Steam
Apeirophobia - Level 6 New Soundtrack
Level 696 - The Backrooms
Backrooms Level 0 #6 — EverlastingBuilding — fxhash