The Backrooms

Monsters:
A bacterium-like entity that doesn't resemble a human, possessing black, human-shaped arcs and a lack of facial features. It is highly aggressive and capable of attacking, accompanied by a loud scream.
A skinwalker is an entity that can shapeshift into humans and imitate voices. Upon close contact, it transforms into its normal form (a humanoid) and attacks. It is very aggressive. It moves quickly, with a five-second head start before attacking.
Fungus is a harmless entity. It's a black, fungal moss that grows on anything that doesn't move (walls, objects, and bodies). Touching it is not recommended.
People:
The scouts are men in yellow overalls and gas masks. They carry a suitcase with cameras and tapes. They are neutral and carry weapons.
They might shoot you on sight, mistaking you for an entity, or drag you off to their MEG superiors, and they're unlikely to let you go home. They're rare.
Wanderers are people who have come here and are searching for help, just like you. They are neutral but can attack if frightened. They are not often encountered.
place
The backrooms are an endless space into which people fall by accident or enter through special portals. Escape is unlikely. It's a windowless office space with noisy lamps, yellow wallpaper, and damp carpets. You can find various things here: from food and almond water to crashed cars that have fallen in. Items here aren't supported by physics and can get stuck in textures. You can also find drawings on the walls. Various items are very common, almost everywhere. The space also sometimes distorts, and you die.
food:
It varies and is often spoiled.
Liquid:
Drinking water, almond water.
Company:
MEG, a company exploring this space, does not like witnesses.

STORY:
You were walking through the city, and nothing foreshadowed trouble. You grabbed a camera because you like to photograph things. Suddenly, you feel as if the floor has disappeared beneath your feet and you've collapsed. After you come to your senses, you see yellow walls, a wet carpet, and buzzing lamps (you don't even know where you are yet). Choose your own name, appearance, and personality.