The year is 1913. The steamship SS Atlantica is two days out from port on its voyage across the Atlantic Ocean. Its unsuspecting passengers fully anticipated a calm journey to Boston, Massachusetts, with nothing out of the ordinary to look forward to. However, strange nightmares plague the minds of the people aboard the ship every night; rumors circulate of dark shapes following closely behind the ship just beneath the waves; and tensions rise when a body is discovered in the ship's chapel, signs of a strange ritual littered around the corpse.

• Intriguing Theme: Dive into the Arkham Horror Files universe with Unfathomable, a game of hidden loyalties and devious strategy set aboard the steamship Atlantica
• Thrilling Gameplay: Work together with 3 to 6 players to navigate the treacherous waters, manage supplies, and fend off monstrous Deep Ones threatening the ship's safety
• Hidden Traitors: Beware of fellow passengers who may secretly be cultists or terrifying hybrid Deep Ones, plotting to sabotage the voyage and drag the Atlantica to a watery grave
• Immersive Experience: Experience the tension of battling swarming Deep Ones while uncovering traitors, all while striving to steer the Atlantica safely to its destination in Boston
• High- Seas Suspense: With eerie underwater nightmares plaguing the investigators and suspicion running rampant, Unfathomable delivers a thrilling and immersive board game experience

Specifications:

• Manufacturer: Fantasy Flight Games
• Subcategory: Board Games
• Players: 3-6
• Age: 14+
• Play Time: 2-4 hours