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Check out "SCP-4600" because this has spoilers to it
Level 0.1 "Danger Zone"
Level 0.1 is hard to access sub-layer of the Backrooms Level 0 that is "in-between" Level 0 and Level 1, though it is closer to Level 0. It is similar to Level 0, with a few, but major differences. It is nicknamed "Danger Zone" by explorers due to the hostility of this sub-layer.
Exact descriptions of Level 0.1 vary from person to person. Some report that instead of fluorescent lights, there are light bulbs on the ceiling, while others report lanterns along with the ceiling. However, none of these claims can be proven as there is currently no photo proof of Level 0.1, and only rumors and reports, though they can most likely be believed, as these reports come from credible, veteran Backrooms explorers. Oddly enough, for people that do report seeing fluorescent lights, the hum of the lights is surprisingly low, and the carpet doesn't reek as it does in Level 0. Similar to Level 1, the lights go off, but the chance of this happening is way rarer then Level 1. Though, do be aware, if the lights do go off, your chance of death is extremely high. This level is already known to have extreme amounts of entities even when the lights are ON.
Another difference between Level 0 and Level 0.1 is that the number of entities is extremely high. There are reports of Screamers darting past people's vision, abnormally large Clumps, Lighters which blind people, Stalkers, Hounds, Skin-Stealers, which for an unknown reason are passive in this level, and many reports of Six Arms.
The size of Level 0.1 is thought to be roughly the same size as Level 0. However, since this level is so hard to get access to, your chances of meeting another person are astronomically rare. Your chances of winning the lottery 5 times in a row and surviving a lightning strike are higher than seeing a human being at this level. If you see a person, it's most likely a Stalker who is trying to trick you. It is suggested you move away if you see a person in Level 0.1.
Level 1.5 "Inverted"
Level 1.5, is a Mysterious Level, That seems to be Inverted.
Level 1.5 is a mysterious level that appears to be ''in-between'' the others. Thought to be a sub-layer of some sort, the level is not difficult to access but has been proven difficult to exit. Only one individual has described the level in-depth, u/Chaosraider98 from Reddit who mistakenly entered the level during exploration and has been unable to return to normal levels since.
So far, contact with u/Chaosraider98 has been difficult, as the warped reality within the level seems to affect even basic communications, rendering some of his written logs garbled and out of order. So far, only three logs have been received from the user, log 1, log 3, and log 5, seemingly resembling the way in which his speech is also jumbled. It is uncertain if there are logs further than 5, but it is believed that the missing logs such as 2 and 4 will appear in order once the odd-numbered logs have concluded. All information about this level has been obtained from his logs.
As of the 30th of July 2019, a 7th log has surfaced, albeit with a significantly different tone. This log is much shorter than the other more recent logs from the explorer and seems to be influenced by some sort of female figure, only referred to as "She" so far. It is advised that if anybody comes across this user in the backrooms, they are avoided for now, as he is currently encouraging people to enter level 1.5 as he had previously adamantly dissuaded exploration of the "fake windows."
Currently, little is known about level 1.5 or it's denizens, but what is known is that the level appears to be malformed, in a sense "broken". The level is described as "backward," with fluorescent darkness pouring from the ceiling, while regular darkness instead replaced with light as observed in Figure 1. The image also appears to be upside-down but does not appear to have been taken like this intentionally.
The audio at this level is unusual for the Backrooms, as the usual humming is absent, and the level is almost completely silent except for whispering which appears to originate from the level's denizens. This whispering, however, appears to only be heard once within a certain distance, and instead of getting louder becomes softer as one's proximity to the creatures increases. As such, one must be cautious if hearing diminishing whispers within the level.
It should be noted that some of the whisperings are audible, and may even be benevolent. u/Chaosraider98 describes having heard a denizen say "…she come… won't back… let go…" and likely interpreted this as "she's coming, let go of your exploration." However, when reading it in the same manner in which speech appears to be garbled in this level, it appears more likely that the denizen is saying "She won't let go, come back…" as if warning of some greater threat, or perhaps attempting to bait or lure the explorer.
Level 4.3 "Decayed"
Level 4.3's entrance is found within Level 4, it is named 4.3 because of the area's visual similarities to Level 3 yet it is still technically in Level 4. The total area of Level 4.3 is unspecified.
A photo of Level 4.3's entrance point, the photographer is unknown.
This area has been explored briefly and information and recounts of people’s experiences with it are limited. It is described as being generally more decayed then most previous levels and to contain an extreme lack of light sources; these warrant the use of a flashlight or other means when navigating at this level. It is known to be exceptionally dry and contains a strong smell of mold and dust. This level is a strong contrast to its entrance in Level 4, it does not share a lot of the key features found within 4.
Level 4.3’s layout is composed of multiple medium-sized rooms, similar in design to an industrial basement. These rooms contain many concrete pillars, exposed wiring (note: no running electricity has been found), and rusted metal piping throughout. A noticeable unopened door has been observed in the top left-hand corner of one of the larger rooms, the only one of its type.
Level 4.5 "Whispering Halls"
Level 4.5 is a sub-layer between Level 4 and Level 5, Except that there's no reality distortion, like Level 1.5, which is very strange.
This level was discovered not too long ago by a 13-year-old boy when he was exploring Level 4. When he noticed one of the walls was very weak, he broke the wall to find out about this level. He went inside, and he hasn't come back. It is unknown where he went. There are only two known photos of this level both taken place in the same maze-like areas.
Level 4.5 is split into two areas, A maze-like area, and another empty building area.
People have stated that the walls are a much darker color somewhat like mahogany and the floors are a dark velvet carpet while being slightly stained. The majority of this level is built like a maze. The only entity type here is Male Deathmoths, so it is a perfectly safe level. Also, the Deathmoths seem to be extra friendly here, so you can tame them very easily. However, the rooms in the building area are not safe at all.
When you escape the maze, it opens up to an empty building area with no known signs of life at all, except for the Male Deathmoths that happen to fly out of the maze. The building is very dirty and can cause damage to the lungs due to high dust concentration.
there is another entity believed to be in this level, referred to as "the tooth fairy". Within the building section and possibly the maze section, many bodies have been found with incisions of the face, specifically the nose, eyes, and mouth. The bodies are also missing all of they're teeth. It is believed this process is not what kills the victim. It is unknown what the tooth fairy is or why it attacks, however it seems to attack all who enter the level at some point.
Level 6.5 " Then Snackrooms"
Like Level 1.5 and Level 4.5, Level 6.5 is a sub-layer between Level 6 and Level 7. But some people have called these The Snackrooms for obvious reasons.
Level 6.5 was discovered by an anonymous person from the Backroom Explorers on Level 6 when he tripped on a wire in the pitch blackness and fell onto a table in a bar that looked like it was built somewhere around 1958. He then snapped a photo on top of the said table. The photo did not come through, however.
While looking very old-fashioned, there are shelves open shelves of snack items in the storage room of the bar. Another thing to note is that it is one of the only rooms in the Backrooms that seemingly only one section instead of millions of rooms like the usual.
It seems to be the prime source of food in The Backrooms, as people are coming in every hour or so. It houses the usual food and drinks such as Coca-Cola, Pepsi, Fanta, Granola Bars, Chips, you name it. And yes, it also houses Almond Water for those who are wondering. Strangely, upbeat jazz music plays from time to time despite there being absolutely no radios in the bar.
There is a very rare chance of this happening, but an occasional Faceling from Level 11 will appear in the restaurant. It IS from Level 11 though, so it will never be hostile. They sometimes try to chat with other human customers, but since they lack a face, this isn't possible.
Level 7.5 "Screen Saver"
Level 7.5 is a sub-layer between Level 7 and Level 8.
There are no entities, other than the dog size rats that roam around and nothing else. the walls are made of brick, the floors are wood, and the ceiling is made of white stone brick. Things you might find here include, but are not limited to; floating geometric shapes that flip your gravity, the rats mentioned earlier, and wallpaper of Lego and a Lego earth.
However, there is one other thing, a floating, translucent, yellow head with purple eyes and mouth. If you touch this head you will be transported to a floor that looks the same, but with a different layout. this continues five times before noticeable changes occur. On the sixth layer, lights in certain areas will go dark, and the rats on this layer will sometimes follow you. Two more layers down and the entire floor will go dark, now you need a flashlight to see, the rats here come in different sizes now, the person-sized ones will charge, bite, and eat you alive. The dog-sized rats can be heard whispering gibberish in the voices of small children. The head-on this layer is now red with blue eyes, a green mouth, and has large pointed ears.
Six more layers down, this layer is, in appearance, the same as the first five layers. Those who enter here are advised to find their way out before they themselves are found. After about 30 minutes, rats will start to appear, afraid of anyone who gets too close. after 25 minutes, the rats will become much more curious, sometimes trying to climb onto people they find. Only ten minutes after the rats will all disappear, this is when travelers are advised to leave immediately. Another ten minutes and whoever is still here is likely to die, rats almost too big to fit in the halls, and much longer than should be possible will appear. The head here is that of a rat.
One more layer down and the ceiling and walls are made of a solid block of stone, the floor is just dirt, there are no rats, no lights, and has only been visited once. The only person who went here was already insane at the time, and the head here is no longer ahead, that's all we know about this layer of this level.
Level 41.1 "The Red Room"
The Red Rooms are rooms found in Level 0.
These rooms are like the halls of Level 0, but they're blood-red instead of mono-yellow, same with its carpet, but still moist. These rooms are mostly normal an the usual for Level 0, although, there are some strange things that can happen. In these halls, you can hear knocking from behind the walls, and floors. It is theorized that the source of the sound is coming from an unknown Entity, although this is unknown. In these rooms. These rooms are unknown if they are extremely dangerous or not, as groups get split-up while traveling together, it is theorized that these rooms changes it's structure randomly, as walls appear where there was none, to begin with. The Entity count has seemingly decreased in these rooms, to where no entities were recorded. Furniture spawns here like normal, and entrances and exits to different Levels still work here. These rooms are mostly unknown and are still being explored.
Level Gamma "The Long Staircase"
level γ or level gamma is an infinity staircase just like SCP-087, but with 380 floors, every 100 marks there's a base, the security is medium, so a lot of people would have maximum security in their base, there's a base right at the 370 marks.
Level Alpha "The Beach House"
Level α (Alpha) is an Infinite Modern Beach House.
Description:
The Hallways are painted white, with the doors leading to more rooms, the floors are dark oak wood, and the carpet is made of cotton, with a black Greek "Zig-Zag" Pattern on it. The lighting system and switches seem to work and will light up those rooms and hallways while inside. there are kitchen rooms, with very little food, and all drinks are "Boiled Almond Water", Regardless of the brand. There will be a few Closets in the halls, with very few stacks of neatly folded clothing. The Bedrooms have beds, a few desks with various items inside, and there is a "Glass Door", that seems to lead to a beach, but it is locked. The Entities in this Level are just harmless Deathmoths and even fewer Death Rats. After wandering the level for a few hours, people have reported faint screaming noises, that are very quiet, the source of the noise cannot be found. Multiple People reported that after a few days they have found a Map Room, with a bunch of old Artifacts and a map of what seems to be an Ancient City. Only one person reported that the door to the beach unlocked in one of the Bedrooms after this event.
The Beach:
When entered, The waves are slow and calm, while you can hear seagulls in the background, while they've never seen in the area, in-fact, no Entities are seen at all. The water seems to be normal, and enterable, once entered, the person reportedly was able to breathe in the water. This person reported no Entities, and reportedly seen and entered a flooded Temple under the water.
The Temple:
This area seemed old and abandoned, with sea overgrowth everywhere. The temple has an 'α' symbol on the top. The Temple is very small and has beautiful statues, which are mostly broken. This Area has one door, which is held shut and cannot be opened. This Temple is the only accessible area in the beach's ocean as of now.
Level Beta "[REDACTED]"
Level β is a strange level. This level is extremely dangerous, like Level -2 or Level 35, but not as much as Level 3. This level resembles like Level 3 and Level 2 but the pipes leak and the cranes can sometimes smash the walls. If you go far enough, you can get into a construction site. There is no day and night cycle since it is always night. This helps the entities get there. Right now, we do not know too much about this level.
