That's Not My Neighbor is an indie horror game from developer Nacho Sama, set in an alternate 1955 where shapeshifting doppelgangers have begun replacing people. You work as a doorman for an apartment building, and your job is to decide who gets in.
Each visitor presents an ID. Your task is to compare it against the tenant records in front of you — name, face, apartment number, date of birth — and catch the discrepancy. A doppelganger's papers are almost right. A digit is transposed, the photo is subtly wrong, the name is misspelled by one letter, the signature does not match the file. Approve one and it gets into the building; turn away a real resident and you are penalised for that too.
The tension comes from time pressure rather than pursuit. Visitors queue, the shift has a clock, and the checks get more involved as new document types and rules are introduced day by day. You are reading paperwork carefully while something that is not human waits on the other side of a glass panel, and the game is largely built on that discomfort.
It is a paid title for Windows, played in short shifts that make up a day, with the story advancing through radio broadcasts and notes between them.
