Working on Sub-levels of level 0 and entities
Level 0 is the first level in The Backrooms
Level 0 is a Non-Linear Space. All rooms in Level 0 appear uniform and share superficial features such as a yellowish wallpaper, damp carpet, and inconsistently placed fluorescent lighting. However, no two rooms within the level are exactly the same.
The Installed lighting does flicker inconsistently and is always humming at a constant rate. It is noted that the humming is louder than regular fluorescent lighting. The reason behind this has not been found yet. The substance on the carpet cannot be identified and is not safe for consumption.
Linear spaces in Level 0 are altered drastically; most of the time, if you walk in a strait line you will end up where you started. Retracing your steps will lead to a different room. Because of this, it is hard to navigate this level. Note that compasses and GPS systems do not work and radios are unreliable.
Level 0 is entirely still and devoid of life. Despite the fact that it is the primary entrance to the Backrooms, contact with other wanderers (other people who accidentally go to the backrooms) within this level has never been reported. Presumably, a great number of people have died before exiting, the most likely cause is dehydration, starvation, psychological trauma due to sensory deprivation and isolation. However, no corpses have been found. If a group of people enter Level 0 they will be separated until they exit the level.
Rooms with red wallpaper and dim lighting appear rarely. These should not be approached or entered.
Hallucinations are common on Level 0, the most common being,
Humming from the lights growing deafening loud the abruptly going silent.
The appearance of doors.
The appearance of stairs.
Acute déjà vu.
Human-like speech resembling no known language.
Movement in peripheral vision resembling insects crawling underneath the wallpaper, which disappears if you look directly at the wallpaper.
insect-like chittering.
According to analysis, the Carbon Dioxide levels are rising steadily. The significance of this is unknown.
There are no known entities in this level (including humans). If you believe you see another life form its a hallucination.
Accidental (or on purpose) no-clipping out of reality.
Exiting Level 0 is only possible by no-clipping, which will always take you to Level 1.
Entrance to the Manila Room is rare but possible