However, strange nightmares haunt people's minds on the ship every night. Rumors circulate about dark figures following far behind the ship just below the waves. And tensions rise when a body is discovered in the ship's chapel, with signs of a peculiar ritual around the corpse. This journey started like any other, but now it seems that the ship can never reach its destination.

Find yourself among the passengers and crew of the SS Atlantica in this game of hidden faith, intrigue, and madness for three to six players. Some players are humans fighting for the ship's survival, while others are traitors sent to the ship by mysterious entities to ensure it never reaches port! Because the players' faith is hidden, determining who is a friend and who is an enemy is crucial to victory in Unfathomable!