Unfathomable

Not all is well on the steamship Atlantica: a foreboding sense of dread, shadows under the waves, and a ritualist murder have the crew and passengers on edge. Now they must work together to get the ship to shore, but not all aboard are what they seem

Unfathomable is a hidden traitor game where players assume the roles of the passengers and crew of the Atlantica. They work together to fight off beasts and perform repairs to the ship. However, some of the players are secretly cultists determined to sabotage the heroes.