A Death in Space
This is an adventure for Cepheus Engine.
While traveling aboard a luxury liner the travelers are summoned by the captain. A passenger has been murdered in his state room. The passengers aboard the craft are rich¸ famous or noble. The captain is not prepared to ask questions or make accusations against such people. He needs someone¸ who is not associated with the cruise line¸ to do the investigation before the ship reaches port. He makes a generous offer to the travelers to handle the issue delicately.
This is a mystery story for the travelers to solve.