Documenting the levels, entities, objects and phenomena of the Backrooms. You've been here before.
backrooms-wiki.wikidot.com
we got the cosmology at possibly low 1-C via the blue channel being the subset of a dimension that transcends the fourth
backrooms-wiki.wikidot.com
this should be canon, so there is not a single backrooms, there is a multiverse
there are multiple entries in the site that hint at backrooms having infinite levels but idk if they all have their own timelines, for now a single backrooms (or universe) would be 2-c, likely 2-b to 2-a, possibly low 1-c (backrooms contain level domain, ottavio asked ultima if it is a 5D space, and he said that it seems like it)
if ur talking about the void of the blue channel, its probably BDE yeah, tho u can argue either type 1 or type 2