The Sorting Office

You are the new clerk at a small post office. Each shift you sort letters and parcels into pigeonholes using addresses, postmarks and a town map that keeps changing as people move. It starts as a pleasant sorting puzzle, then a parcel turns up addressed to a house that burned down years ago, and the job becomes an investigation.

The look is paper-and-ink, red mail bags and faded blue stamps, with crisp typewriter sound effects. It takes about 5 hours across 20 shifts. It suits fans of paperwork games and quiet mysteries. The caveat: shifts 12 and 13 are long and repetitive, and you cannot skip the sorting to get to the story.