From the introduction: Crisis on the Calypso is a party game for 6 to 12 players set on a crumbling spacecraft. The crew wins if they can evacuate two shipmates and thwart the agenda of the mysterious Saboteurs. Gameplay takes place over a number of turns equal to the number of players, taking 20 – 60 minutes. User summary: Requires the use of custom cards which are provided as print-and-play components in the game document.