That’s Not My Neighbor is a standout horror-deduction game, distinguished by its ability to generate a sustained sense of tension throughout the entire gameplay experience. The game taps into psychological fears, compelling players to remain constantly suspicious and alert to every minute detail.

In the game, you assume the role of a doorman at an apartment complex—a place where impostors could appear at any moment. Your mission is to verify identification papers, scrutinize faces, observe behaviors, and look for any anomalies to determine who is a "real neighbor" and who is an imposter. It is precisely this element of uncertainty that creates constant pressure behind every decision you make.

What makes the game so nerve-wracking is the disparity between the trivial nature of a potential error and the magnitude of its consequences. A single misjudgment could result in you inadvertently allowing an imposter to slip into the building. This forces players to maintain intense focus, meticulously analyzing every detail rather than making hasty decisions.

Furthermore, the game's gloomy atmosphere—characterized by simple yet haunting visuals—combined with chilling sound effects, serves to heighten the sense of anxiety. Each playthrough feels like a psychological test, forcing players to constantly grapple with the conflict between their intuition and their logic.