A Soviet dream turned nightmare : Explore the now empty halls of a Soviet super submarine and discover what caused its supernatural downfall.

• Spongy psi-soldier, agile special weapon expert or hacking-savvy gunslinger? Build your own character in this first person dungeon-crawler inspired by immersive RPGs from the 90s.

• Immerse yourself in the dark corners of the S1-Utopia - a Soviet super weapon. And scour its four floors for powerful weapons like flamethrowers, harpune guns and automatic pistols.

• Reveal what caused the supernatural infestation onboard the S1-Utopia.

• Argue, gossip and barter with a cast of alcoholic sailors to learn more about their subnautic secrets. Embark on treacherous side-quests : Solve criminal cases together with Detective Sherlock Holmes, discover hidden treasures, or fight through the crypt of a haunted cathedral.

• Sonar Shock is full of secrets: Book shelves slide to the side and vents harbor strange treasures.

• Step into the survival horror: Manage your ever dwindling ammo supply and your sanity, as you try to keep eldritch horrors at bay.

• Fight an enemy raster inspired by H.P. Lovecraft and Slavic folklore : Enjoy the privilege of being eaten by a Shoggoth or haunted by a Rusalka.