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.