THAT'S NOT MY NEIGHBOR - TRUST NO ONE BEHIND THE DOOR

That's Not My Neighbor is a psychological horror simulation game that puts you in a quiet but terrifying job: guarding the entrance of an apartment building where not everyone is human. Instead of action or combat, the game focuses on observation, logic, and decision-making under pressure. One wrong choice can let a monster inside.

What makes this game stand out is its slow-burning tension. Fear does not come from jump scares alone, but from doubt, responsibility, and the feeling that something is always slightly off.

A Dark Setting Inspired by 1950s Paranoia

The game takes place in 1955, inside a small apartment building during a time of fear and secrecy. You work as a doorman for the Department of Doppelganger Detection (D.D.D.), a fictional organization created to stop inhuman copies from replacing real people.

Every day, residents arrive at the entrance asking to be let in. Some are normal neighbors. Others are doppelgangers-creatures that imitate humans but often make small mistakes. The retro setting, old documents, and muted colors strengthen the unsettling atmosphere and make every interaction feel suspicious.

GAMEPLAY - CHECK, COMPARE, DECIDE

Your job is simple on paper but stressful in practice. Each visitor presents documents and claims to be a resident. You must decide what to do.

During each encounter, you will:

Check ID cards, photos, names, and apartment numbers
Compare information with resident lists
Watch facial details, posture, and behavior
Decide to allow entry, deny access, or call D.D.D.

The challenge comes from subtle inconsistencies. A wrong date, an extra tooth, strange eyes, or nervous answers may reveal the truth. However, rejecting a real person is also dangerous.