About This Game

If it knocks twice, do not answer. Do not speak.

Garland Court is a six-storey walk-up in Queens with rent too cheap to question. The house rules came under your door the night you moved in. Now the knocking starts.

The thing in the hallway can't come in unless you let it: by opening, by speaking, by knocking back. So it borrows the people who live here: the kind old woman from 4C, the super, the cop doing his rounds. Some of them are real. Through the peephole they look the same.

Look before you answer

• The peephole. A fisheye view of a real hallway. Stay too long and someone may lean in and look back.

• The gap under the door. Lie on the floor and count the shadows in the strip of light. Two feet is a person.

• The stairs. Real people have weight. Listen for the steps that never come.

When the rules break, it doesn't end. It starts.

Open the door with the chain on and long fingers come through the gap: slam it on them. Let it in and you get one chance, because it keeps shoes, so throw it one. Or run for the bathroom, get under the bed, and hold your breath while it searches.

Five apartments, five ways to watch

• 4B, the door. Your apartment. Five nights.

• 1B, the window. A basement window at sidewalk level: shins and shoes, never faces.

• 1A, the board. The super's office. Four amber lights, one per tenant. You decide who gets buzzed in.

• 4C, the other side. Someone new moves into your old apartment. Slide them the rules.

• B2, the boiler. The last night. You leave your room for the first time.

And the building's past

• 1962. You're the night fireman in the new boiler's first winter. Keep the steam up. To feed the fire you have to open its door, and something in there knocks twice from the inside.

• 1967. You're Rosa Hale. Type the rules on your typewriter and slide a copy under every door on the floor. Your neighbours will do exactly what you wrote.

• 1973. You're nine. Someone who talks exactly like your big brother or sister walks you up the stairs of a building you've never seen.

Other people pay

Turn away a neighbour who was real and their light goes out on the board, and the thing keeps their voice for later. When a face at your door turns out to be wearing someone, their shoes are in the hallway the next night. Neat. Paired. Toes to the wall.

Features

• Thirty-two endings, each with its own way of ending you, and a wall of polaroids that develops as you find them.

• Seven pieces of a story about the person you came here to find.

• A randomized set of tells and forged notes every campaign; New Game+ with harder odds.

• Night Shift: one life, as many nights as you can last in today's building, with daily Steam leaderboards.

• Knock Once: one life across the whole campaign.

• Full controller support. English and Simplified Chinese. Brightness calibration, subtitle sizes, field of view, three graphics presets, comfort mode.

Headphones recommended. Contains jump scares, flashing images and loud noises.