That’s Not My Neighbor

What happens when a tenant’s face matches their ID, their apartment number matches the building record, and something is still wrong? That’s the daily bind in That’s Not My Neighbor: a doorman’s booth, a stack of tenant paperwork, and a world where doppelgangers mimic humans well enough that the documents alone aren’t always enough to catch them.

Working the Door in That’s Not My Neighbor

The job is straightforward in theory: applicants show up asking for access to the building, and the player checks their papers — ID, apartment number, arrival details — against what’s on file before deciding to let them in or turn them away. In practice, doppelgangers infiltrate that process by copying real tenants closely enough that a careless check waves them straight through.

Confirming an applicant sometimes takes more than a glance at a document. Placing a phone call to verify a tenant’s story is part of the toolkit, and skipping that step to save time is exactly how a doppelganger slips past a distracted doorman.

New players tend to focus entirely on the ID photo and miss smaller inconsistencies elsewhere in the paperwork — a detail that doesn’t match the building’s own tenant records is often the only tell a doppelganger leaves behind.

Arcade Mode and the Six Modes That Followed It

That’s Not My Neighbor launched with a single game mode, Arcade Mode, built around that same core loop of checking documents against tenants at the door. The game has since grown to six completed modes, each changing the pressure or structure around that same central verification task rather than replacing it.

The core tension stays consistent across modes: doppelgangers aren’t identified by one obvious flaw, they’re caught by cross-referencing several small details that individually look almost fine.

How do you tell a doppelganger apart from a real tenant?

By cross-referencing details across their documents, apartment records, and sometimes a phone call — doppelgangers tend to get one small detail wrong rather than failing every check at once.

How many modes does That’s Not My Neighbor have?

Six completed modes as of the game’s more recent updates, all built around the same document-checking core that Arcade Mode introduced at launch.

That’s Not My Neighbor earns its tension from how ordinary the job looks on paper — checking IDs and apartment numbers — right up until a doppelganger passes every obvious test and only a phone call or a mismatched record gives them away.