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As a 1955 apartment doorman, inspect papers, faces, and resident details to keep doppelgängers from entering.
Released 11 Mar 2025
Inspect Visitor Papers
Spot Doppelgänger Clues
Call Apartment Residents
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 must decide whether to let in those who claim to be your neighbors.
Developed by Nachosama Games · Published by Nachosama Games









In 1955, doppelgängers are impersonating residents. As an apartment-building doorman working with the Department of Doppelganger Detection, you decide which visitors are genuine and which should be turned away or detained.
Examine each visitor’s documents and appearance, compare their details with resident information, and call an apartment to check a suspicion. Then choose whether to admit, deny, or detain the visitor.
Campaign Mode ties different endings to your performance. Arcade Mode challenges you to beat your score, Nightmare Mode tests your inspection skills against harder cases, and Custom Mode lets you design tenants.
Players who enjoy the game often praise the close inspection of documents and appearances, saying small clues make routine decisions tense and engaging. Reviews also highlight the unsettling character designs and the alternate and custom modes. Other players find the inspection loop repetitive or the overall experience short, especially after learning the recurring clues.
Immerse yourself in the experience of working as a doorman in an apartment complex infested by beings that take on the appearance of your building's neighbors.
That's Not My Neighbor is a job simulator with science fiction elements and a slightly eerie aesthetic that will test your sense of observation and attention to detail.
Your job as a doorman is to allow or deny access to applicants seeking entry to your building. You will use tenants' documents and information to determine whether the applicant is truly human or not.
You will have the power to decide who enters the building and who is rejected or captured by the D.D.D. for extraction.
Include a variety of game modes: achieve different endings based on your performance in Campaign Mode, beat your score in Arcade Mode, test your skill in Nightmare Mode, and design your own tenants in Custom Mode.

| Platforms | Windows, Linux |
|---|---|
| Achievements | 18 |
| Age ratings |
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| Controller required | No |
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