2017 · ソースブック（プレイを拡張するルール／オプション）

Odin's Eye: Passenger

Players take the roles of search-and-rescue specialists aboard a galaxy-hopping spaceship. While orbiting a toxic, unstable alien planet, the crew intercepts a distress beacon with an unknown origin and an unfamiliar rhythmic signal. As they investigate, they must determine who—or what—is sending it, while confronting the threat posed by a mysterious passenger whose illness is rapidly worsening. This story-focused roleplaying game uses the Protocol system and requires no gamemaster. Players establish the characters, introduce plot twists, and shape the unfolding narrative without a fixed script or endpoint. A complete story can be played in under four hours.