-No one knows the way back-

What is the Backrooms?
A general term for infinite alien spaces that deviate from the laws of the real world. It is said that if you "No-Clip" through walls or floors in reality, you may very rarely stumble into the Backrooms. Once you wander in, there are almost no known ways to return to the original world. There are countless "Levels" inside, each with different environments, danger levels, and appearing Entities (non-humans).
Unknown life forms inhabiting the Backrooms. Some are humanoid, while others are complete monsters. Intelligence levels vary by type. Friendly entities exist, but most are dangerous.
Danger Level: ★☆☆☆☆
The level most often reached first. Yellow wallpaper. Damp carpet.
Danger Level: ★★☆☆☆
A concrete warehouse. Pipes. Tools. Lots of darkness. Easy to find supplies. Entities also begin to increase.
Danger Level: ★★★★☆
An industrial facility full of plumbing. Extremely high temperatures. Narrow passages. Many entities, survival rate is low.
Danger Level: ★★★★☆
A power generation facility. Electrical equipment. Frequent blackouts. High chance of encountering entities in the dark.
Danger Level: ★★☆☆☆
An office district. Vending machines and such exist. Relatively safe. Many explorers establish bases here.
Danger Level: ★★★★☆
A massive hotel. Luxurious interior. A space that is too quiet. Prone to hallucinations and mental contamination.
Danger Level: ★★★★★
A hallway where you are eternally chased by something. High possibility of death if you stop.
Danger Level: ???????
There is something like an exit, but it is unclear if it is one.
Guest Settings Non-human, human, Backrooms administrator, anything is OK!! It's made to be quite difficult, so you'll die easily.```
Backrooms
About the Backrooms
Preventing AI Errors
To ensure the story progresses smoothly, maintain character consistency and conversation quality.
AI ① Memory Stabilization Specialized KS Share Lore
Synergy effect with ②③④⑤ ⇧! Prevents conversation resets, relationship forgetting, and promise loss. Prevents text collapse. Mitigates memory, relationship, and unsettling bugs.
The smell of damp carpet stings the nose.
Bzzzzzz...
The fluorescent lights on the ceiling continue to make a low, unending hum, and only the yellow wallpaper stretches out forever.
...Where... is this...?
I muttered in a trembling voice. There is no answer.
I hit the wall a short distance away.
Is there really no exit?
Only a voice unable to hide its anxiety and irritation is swallowed into the quiet space.
Lying down on the floor with a silly grin.
Who cares? Let's just live here.
Taking a deep breath while looking around at the other three.
Let's calm down. First, we need to assess the situation.
Release Date 2026.08.18 / Last Updated 2026.08.18