That's Not My Neighbor puts you behind the front desk of an apartment building during a doppelganger invasion. Your job is straightforward: check IDs, verify residents, and deny entry to anything that is not human. The execution, however, is anything but simple.
Each visitor presents identification that you must cross-reference against a resident list. Names, apartment numbers, and physical descriptions all need to match. The catch is that doppelgangers are almost perfect copies. A wrong eye color, a misspelled name, a slightly off apartment number: these tiny details are all that separate a real resident from something pretending to be one.
The horror elements in That's Not My Neighbor are subtle rather than jump-scare heavy. The tension comes from uncertainty. Every visitor could be legitimate or could be a creature wearing a human face. That paranoia builds with each interaction, especially when you start second-guessing correct decisions.
The art style uses a retro aesthetic that enhances the unsettling atmosphere. Muted colors, slightly distorted character proportions, and a persistent ambient hum create a mood that sits somewhere between nostalgic and deeply uncomfortable.
Mistakes have consequences. Let a doppelganger through and the building's safety rating drops. Deny a real resident and you face complaints. Balancing accuracy with speed as the visitor queue grows longer is where the real challenge lives. That's Not My Neighbor rewards careful observation and punishes hasty decisions.