Backrooms

The level depicts a mysterious forest beneath a perpetual starry sky. It's described as an oasis, "a forest from your dreams, shimmering in the darkness." Details include thundering waterfalls, crimson grass damp with dew, and trees that seem to reach for distant constellations.
Despite its harmless and even beautiful description, it is considered extremely dangerous and drives crazy those who fall into it.
The level's text creates the illusion of an ideal place where one can escape pain and find peace. Wanderers begin to hear whispers that promise happiness and relief from worries. Thoughts become clouded, and the desire to stay forever intensifies.
The main danger of this level is that it doesn't kill by force, but rather persuades, beckons, and coaxes you to stay. The few who have managed to return say the same thing: leaving Paradise is much harder than entering it.

This is one of the most famous and dangerous levels, where the main task is to run continuously to survive.
From the outside, it's a long, narrow corridor, reminiscent of a hospital. Its main features are a red aura and bright fluorescent lighting. As the player advances, the corridor gradually becomes bathed in red light, and an oppressive, unsettling atmosphere fills the air. Sirens wail from all directions.
Your goal is to run to the end of the corridor. The path is strewn with obstacles: hospital beds, chairs, and other objects that can knock you down. Doors appear at random intervals, but most are initially locked.
As soon as you enter the level, you'll be chased by a horde of entities (such as the Smiley One, the Party People, and others). If you stop or slow down, the entities will quickly catch up with you.

Level 188 in Backstage, known as the "Windowed Courtyard," is a large building with a courtyard surrounded by numerous windows. It's one of the most dangerous and unstable levels, requiring extreme caution to survive.
Exits. Leaving the level is extremely difficult and dangerous. The most reliable way is to return through the same window you entered through, but this rarely works. Other "open" windows lead to unknown locations, and the risk of dying or disappearing is very high.

The level appears as a vast, sprawling field of wheat and barley, divided by paths and patches of trees. A dirt road runs through it, serving as the main landmark.
The time on the level is always around noon.
The sky is always covered with heavy dark grey clouds, occasionally it drizzles or fog descends.
The monotony of the landscape and the even light of the sun make it difficult to keep track of the passage of time.
Wheat. It grows constantly but never ripens, essentially remaining tall grass. It can be eaten after boiling in "almond water," producing "green stuff"—the main food of the level.
Almond water - Rainwater, dew, and water in puddles in the field are made of it. It can be collected
There are barns, stables, small houses (built around the 1980s), sheds, wind turbines, a bus station, and other structures. Most are nearly empty, but useful resources like wood and nails can be found inside.

The level itself is safe, featuring a small house with a pink and pastel interior. All the windows are paintings depicting what's usually outside, but with a "cute" twist.
Kitchen cabinets and pantries are filled with many edible items, such as "Greasy Marshmallows" and other familiar Hello Kitty items. The food is in good condition and safe to eat, and anything taken from the pantries or cabinets eventually reappears there.
Entity: Kitty
The level is inhabited by an entity named Kitty. It is a humanoid creature, approximately 3.2 meters tall, with unnaturally long, tentacle-like limbs lacking hands and feet. Kitty's skin is matte black, resembling tanned leather. She likely has no facial features, but she is capable of seeing, hearing, and smelling.
Kitty moves smoothly and quickly, often appearing suddenly behind travelers. She doesn't display overt hostility—usually she simply observes the explorers. However, if a traveler intentionally damages the house or behaves aggressively toward Kitty, she immediately ceases pursuit and disappears.
The only known solution is to give Kitty the "cute" item you were wearing when you entered the level. This can be done at any point during the level. Afterward, you'll instantly fall asleep and wake up in a random, safe level.

In essence, it is an endless network of winding technical corridors – essentially an underground workshop or maintenance complex.

Layout. The corridors often intersect at random angles. One peculiarity: many of them curve at exactly 45-degree angles, and their length in the metric system is usually a multiple of 5. At the same time, the tunnels themselves can be quite narrow—sometimes so narrow that you have to squeeze through, hugging the pipes.

Walls and surroundings. The walls are mostly concrete (sometimes brick), with drips of bitumen, and carelessly painted with oil paint. Pipes (steel or cast iron) run along the walls and overhead—they can contain either regular water or a viscous black liquid (tar). There are also ventilation ducts, sometimes filled with the same liquid.
Equipment. Bulky machinery often lines the walls: pumps, heat exchangers, boilers, filters, and sometimes even obscure components. These devices usually don't operate in sync—they're simply connected by pipes and electrical wires in a haphazard fashion.

Lighting. Incandescent bulbs in thick glass shades provide light. They are harsh and glaring, but spaced widely apart, making the level overall quite dim. Wiring is often exposed and easily damaged, plunging part of the level into darkness.

Doors. Sometimes you come across doors—many of them are locked or lead to dead ends. But not all: some open up to rooms where you can find shelves with random items or even computers.

Entities. This level is considered one of the most dangerous in Backstage. Encounters include: Smileys, Faceless Children, Multi-Armed Ones, Hounds, Deathmoth Males, Wretches, Burning Ones, and Skinstealers. The noise coming from the ventilation shafts may be caused by the "Lurker" entity. You might encounter Mark in the employee bathrooms. Main advice: run as soon as you see any of these entities.
The constant hum of machinery, the hissing of pipes, and the clicking of relays create an unbearable cacophony.

Backstage is an interdimensional dimension, another world, containing millions of locations, one of which is the endless corridors—level 0, the "lobby"—where a person first enters, as the initial stage. The corridors and rooms on level 1 are covered with old, monotonous yellow carpets, the walls are covered with mismatched wallpaper, and the ceilings are hung with noisy fluorescent lights. This location is characterized by the appearance of "entities"—phantasmagorical creatures hostile to humans. The only way out of level 1 is through a window in the wall, leading into the dense darkness of the next level. On level 1, it's easy to die from the entities, thirst, and hunger.