That's Not My Neighbor

Not every visitor is who they say they are. That's Not My Neighbor is a logic and observation puzzle set in a dystopian apartment complex where you play the doorman. Your job: check each visitor's ID documents against the tenant list and decide if they're real — or a doppelganger wearing a near-perfect disguise.

About That's Not My Neighbor

Every knock at the door brings a new puzzle. Check the visitor's documents, compare them against the tenant list, ask questions, and spot inconsistencies. Name, room number, date of birth, photo — mismatches between any of these are clues. Miss one, and things get dangerous.

The game builds deep tension around what looks like a simple loop: every decision has real consequences. Letting a real tenant in or turning them away, or letting a doppelganger through — each outcome leads somewhere different. When you're unsure, calling the Doppelganger Detection Department gives you backup.

Developed by Nacho Sama, the game keeps the tension alive with retro visuals that evoke the 1955 aesthetic and atmospheric music. Each decision builds on the last, and staying calm under pressure is the real skill test.

Why kids love it

The detective-style document checking mechanic builds curiosity and observation skills. Getting it right gives an instant hit of satisfaction.

Is it safe?

Atmospheric tension puzzle game. Suitable for ages 10 and up.

1. Talk to the visitor at the door through the intercom — ask for their ID documents before opening.
2. Check the documents carefully: compare the name, room number, date of birth, and photo against the tenant list.
3. If everything matches, let them in; if something seems off, deny entry or call the Doppelganger Detection Department.
4. If you spot inconsistencies across multiple documents, don't let the visitor in — every detail matters.
5. Watch the outcome of your decisions and stay sharp for the next visitor.

• Check the photo: Compare the photo on the document with the person at the door — even small differences can be a big clue.
• Room number: Always verify that the room number given matches the person on the tenant list.
• Don't rush: Making fast decisions under pressure leads to mistakes — spend enough time with the documents.
• Use the DDD: When you're truly unsure, calling the Detection Department is the right call — it's safer than a wrong decision.

• Document inspection mechanic: Hunt for inconsistencies between ID, room number, photo, and extra documents.
• Logic-based decisions: Observation and deduction to tell real tenants from doppelgangers.
• Tense atmosphere: Retro aesthetic and atmospheric music keeping the pressure on.
• Doppelganger Detection Department: A helpline you can call when a case gets suspicious.
• Fresh puzzle every door: Each visitor brings a different set of clues and a new assessment.