Rather than the usual multiplayer deduction, the game puts players in a MIRA training simulator as the Guard, the crewmate responsible for shipwide security. The job involves completing tasks, gathering clues and identifying the Impostor, with three endings to uncover. The cast includes a hard-boiled private eye, a cook days from retirement and a doctor who streams on the side, in what reads as a detective story wrapped in the series' usual paranoia.

The announcement came with a release date trailer, and the Steam page carries the full overview of the game's premise and characters.