Thats Not My Neighbor

About That's Not My Neighbor

That's Not My Neighbor is a horror role-playing game set in 1955 where you work as a doorman at an apartment building. Your job is to approve or deny entry to residents — but doppelgangers, creatures that perfectly mimic human appearances, are attempting to infiltrate the building by posing as legitimate tenants. You use resident records, ID documents, and visual inspection to identify genuine residents from imposters.

The core mechanic is document examination: each visitor presents ID that can be compared against the resident registry. Doppelgangers make subtle errors — wrong apartment numbers, photo discrepancies, names that are close but not exact, inconsistencies between the ID card format and the expected period-specific design. The tension escalates as the workday continues and the doppelganger attempts become more convincing and their document forgeries more detailed.

Identifying Infiltrators

The most reliable tells are cross-referencing multiple document fields simultaneously rather than spot-checking one. A doppelganger that correctly copies the resident name may have an incorrect apartment number; one with a matching apartment may have a photo inconsistency. Develop a standard document-check sequence — name, apartment, photo match, ID format validity — and apply it identically to every visitor rather than relying on first impression. Some doppelgangers are designed to appear obviously suspicious to draw your attention while their actual document forgery is in a field you haven't prioritised.