Level 9223372036854775807 - The Escherian Stairwell, Escape The Backrooms Wiki

Safe No Sanity Risk Devoid of Entities Level 9223372036854775807, also known as The Escherian Stairwell, is seemingly an infinite stone staircase with openings where a white void can be seen. It is currently undetermined in size. Nobody has been able to reach the top, so it leads many to believe that it's infinite. Each level has a number corresponding to its floor number. All numbers change to infinity symbols past floor 99. It has been theorized that this is the deepest level in the Backrooms.

Steam Community :: Guide :: Full game guide in order (3.10 version)

Level Guides, Escape The Backrooms Wiki

Level 54: Stairwell Of Spirals, Backrooms Wiki

What entities are in level 15?

Steam Community :: Guide :: Nightmare guide in order (3.10 Version)

Level 3999 - The True Ending, Escape The Backrooms Wiki

let's test your backrooms knowledge what level is this : r/backrooms

Level 9223372036854775807 - The Escherian Stairwell

Number Lock, Escape The Backrooms Wiki

Level ! - Run for Your Life, Escape The Backrooms Wiki

Level 6 - Lights out, Escape The Backrooms Wiki

What are level 17 Backrooms called?

Level 6 - Lights out, Escape The Backrooms Wiki

Level 6678, Backrooms Freewriting Wiki

Level 9223372036854775807 - The Escherian Stairwell