Thats Not My Neighbor

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That's Not My Neighbor: Doppelganger Inspection Simulator

That's Not My Neighbor is a 2D job-simulation horror game that plays like a terrifying version of Papers, Please. Set in a 1950s apartment building, you step into the role of a doorman working for the Doppelganger Detection Department (D.D.D.). Your job is simple but high-stakes: verify the identity of every person trying to enter the building and keep the shape-shifting monsters out. Granting entry to just one doppelganger means a brutal death for you and the real residents.

If you enjoy the claustrophobic, task-based anxiety of Elevator Hitch or the paranoid camera-checking mechanics in Five Nights at Freddy's, this game will push your attention to detail to the limit.

The D.D.D. Inspection Protocol

Every time the window opens, a new visitor will hand you their paperwork. You must cross-reference their physical appearance against your official building records before touching the door controls.

Visual Anomalies: Some doppelgangers are obvious—they might have missing eyes, extra limbs, or melting faces. Others are near-perfect copies with only a slightly misplaced mole or wrong eye color.

Document Forgeries: Check their ID card and entry permit meticulously. Look for typos in their name, incorrect apartment numbers, fake D.D.D. logos, or expired dates.

The Interrogation: If a document is missing or something looks slightly off, you can question the visitor. Sometimes they have a valid excuse (and the paperwork to prove it); usually, they are lying.

Emergency Purge: If you confirm a doppelganger, do NOT unlock the door. Hit the red alarm switch, pick up the rotary phone, and dial the D.D.D. (3312) to have the creature "removed."

Desk & Doorman Controls

The game is entirely point-and-click. You will need to manage your desk space efficiently to survive your shift.

Input	Action
Left Click & Drag	Move documents around your desk, open resident folders, and inspect IDs without overlapping them.
Left Click	Interact with the window, press the door lock/unlock buttons, question visitors, and dial the rotary phone.

Input

Action

Left Click & Drag

Move documents around your desk, open resident folders, and inspect IDs without overlapping them.

Left Click

Interact with the window, press the door lock/unlock buttons, question visitors, and dial the rotary phone.

Tips for Catching Perfect Doppelgangers

Organize Your Workspace: Keep the resident manifest open on the left side of your screen and drag the visitor's ID to the right. Never let papers pile up, or you will miss crucial details.

Check the Logos: A monster might replicate a human face perfectly, but they often mess up the D.D.D. stamp on the entry permit.

Trust Your Gut: There is no time limit per visitor. Take your time. If a face feels unsettling but the papers match, double-check the resident folder's photo again.

Need a break from the stressful paperwork? Try exploring the deep psychological mysteries of our flagship title, The Freak Circus, or investigate the cursed VHS tapes in The Survey.

Frequently Asked Questions

Is That's Not My Neighbor free to play in the browser?

Yes. This HTML5 web version allows you to play the inspection simulator directly in your browser without needing to download the heavy desktop client.

Does the game have jumpscares?

The core gameplay relies on creeping dread, psychological tension, and the unsettling uncanny valley effect of the monsters. However, if you make a mistake and let a doppelganger into the building, you will be hit with a severe jumpscare at the end of your shift.

What is the emergency phone number?

When you spot a fake resident, hit the alarm button and use the rotary phone to dial 3312. The D.D.D. cleanup crew will handle the rest.