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That's not my Neighbor official game artwork

THE PRACTICAL GUIDE

That's not my Neighbor Guide

It's 1955, and for unknown reasons, doppelgangers are more common than usual. Therefore, the Department of Doppelganger Detection (D.D.D.) has taken action. You are the doorman of an apartment complex, and you

Steam ↗Windows · Linux
GameWiki Pro EditorialReviewed 5 guide topics

GET YOUR BEARINGS

Plan your next That's not my Neighbor session

Our independent guide breaks down each facet of *That's Not My Neighbor* to help you master the doorman’s duties. By examining mode‑specific tactics and core decision‑making, you’ll sharpen observation skills and improve outcomes across all play styles.

01 / THE GUIDE

Analyzing Document Details

Compare two sample tenant files side by side, noting differences in name spelling, photo quality, and ID numbers. This practice builds the habit of spotting subtle inconsistencies that signal impostors.

  • Take notes on each applicant’s paperwork before deciding.
  • Review previous decisions to spot patterns in impostor behavior.

02 / THE GUIDE

Speed vs. Accuracy in Arcade

Run a timed session in Arcade Mode, recording how many correct decisions you make per minute. Then replay, focusing on reducing errors while maintaining a similar pace to find a balanced rhythm.

  • Prioritize speed without sacrificing accuracy.
  • Aim for streaks of correct decisions to boost your score.
That's not my Neighbor official gameplay screenshot
Publisher-provided gameplay image · Nachosama Games

03 / THE GUIDE

Pattern Recognition in Nightmare

After several Nightmare runs, list recurring traits of successful impostors. Use this list to anticipate future deceptions, turning the heightened difficulty into a strategic advantage.

  • Focus on subtle discrepancies in documents.
  • Limit distractions to maintain concentration.

04 / THE GUIDE

Custom Tenant Design Challenge

Create a tenant profile that deliberately mixes authentic and false details. Test it yourself or share with friends to see if the blend successfully confuses the decision process.

  • Vary document details to keep the mode fresh.
  • Save interesting configurations for future replay.

05 / THE GUIDE

Ending Evaluation in Campaign

Play through Campaign Mode multiple times, each with a different decision strategy. Compare the resulting endings to understand how cumulative choices shape the narrative outcome.

  • Cross‑check names, photos, and IDs carefully.
  • Remember that the D.D.D. will extract confirmed impostors.

WATCH THE GAME

That's not my Neighbor videos

Official trailers & gameplay

INSIDE THE WORLD

Screenshots & game images

5 official screenshots

IN THIS WIKI

Your reading checklist

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QUICK ANSWERS

That's not my Neighbor FAQ

What platforms can I play *That's Not My Neighbor* on?

The game is available for Windows and Linux; it does not support macOS.

Is there a multiplayer component?

No, the title is a single‑player experience only.

Can I earn achievements?

Yes, the game includes Steam Achievements and supports Family Sharing.

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SOURCES & CREDITS

Official resources and further reading

Original editorial guidance. Game imagery and trailers are provided by the publisher through Steam. Media and reference links checked 2026-10-22. Game versions, supported platforms, and balance can change; consult the linked release notes for current details.