
Full Fathom is an oceanic survival horror game. Pilot a deteriorating submarine as it drifts through grim waters, keeping it maintained as it is your only lifeline in the hostile, merciless ocean.
60+ similar titles based on shared tags and player behavior. Themes include Underwater, Submarine, Atmospheric, Singleplayer.

Full Fathom is an oceanic survival horror game. Pilot a deteriorating submarine as it drifts through grim waters, keeping it maintained as it is your only lifeline in the hostile, merciless ocean.

Abyssal Rust
Navigate an open-world ocean in a rusted submarine with monstrous creatures lurking in the depths. Collect artifacts, upgrade your submarine and descend into even deeper waters. If you didn’t fear the deep sea before, now you will.

The Diving Bell
Trapped in a deep-sea diving bell, your systems are failing. Descend to find a missing expedition - survive what's hunting you.
Navigate an open-world ocean in a rusted submarine with monstrous creatures lurking in the depths. Collect artifacts, upgrade your submarine and descend into even deeper waters. If you didn’t fear the deep sea before, now you will.
Why similar: Submarine 33.4% ★, Underwater 27.6% ★, Survival Horror 11.1%, Open World 8.1%, Horror 6.1%
Trapped in a deep-sea diving bell, your systems are failing. Descend to find a missing expedition - survive what's hunting you.
Why similar: Submarine 28.7% ★, Underwater 18.9% ★, Survival Horror 11.8%, Psychological Horror 7.6%, Horror 6.3%
You are an employee of U.D.E. Your mission is to explore the ocean depths, investigate ancient artifacts, and... save your own skin. Survive, uncover the corporation's secrets, and find out what lies hidden in the depths.
Why similar: Submarine 33.1% ★, Underwater 23.5% ★, Lovecraftian 9.5%, Survival Horror 6.5%, Psychological Horror 6.2%
Sunken Seeker is a short, first-person underwater horror experience. Forced to pilot a decaying submersible, you have 7 days to pay off a massive debt. Navigate pitch-black waters, scan for salvage beyond your headlights, and survive the shift before the Director cuts your life support.
Why similar: Submarine 43% ★, Underwater 30.8% ★, Exploration 6.4%, Resource Management 5.8%, Horror 5%
Dive into the waters of Scyla, a third-person 3D exploration adventure inspired by Lovecraft's universe. Discover the mysteries hidden into the depths as you pilot a submarine through a strange cave system. Run away from a criature that stalks you.
Why similar: Submarine 38.2% ★, Underwater 25.2% ★, Lovecraftian 10.2%, Survival Horror 7.6%, Nonlinear 7.5%
A sinister entity lurks in the depths. Descend into the abyss and extract knowledge about it.
Why similar: Submarine 46.3% ★, Underwater 25.8% ★, Open World 7.4%, Horror 6.7%, Nonlinear 3.7%
Burn Depth is an tense, underwater, horror exploration game. Find a path through a dangerous and unexplored area of the ocean filled with menacing creatures. Manage your vessel's resources, survive the dive, and uncover the mysteries beneath the sea floor.
Why similar: Submarine 33.9% ★, Underwater 24.4% ★, Lovecraftian 8.8%, Post-apocalyptic 7.6%, Psychological Horror 6.5%
Swim deeper and deeper into this underwater horror game. Explore open worlds, save your friends, escape monstrous creatures....What are you waiting for? the depths are beckoning you to go deeper!
Why similar: Underwater 30.3% ★, Survival Horror 13.4%, Lovecraftian 10.5%, Nonlinear 7.5%, Open World 7.2%
Operate an oil-drilling submarine while taking instructions from a mysterious voice. Fail your quota, and they’ll cut your oxygen. This is deep-sea horror. Obey or drown.
Why similar: Submarine 40.4% ★, Underwater 23.2% ★, Survival Horror 10.5%, Psychological Horror 9.4%, Horror 6.2%
Ocean Pressure is a singleplayer game where you as an old scientist piloting your handmade submarine in the bottom of the ocean. Your mission is explore the ocean and collect required data with help of your submarine.
Why similar: Submarine 38.5% ★, Underwater 25.6% ★, Survival Horror 6.8%, Psychological Horror 6.7%, Open World 6.5%
Pilot a submarine in a horrific, deep sea expedition. Study the monsters the lurk below and look for their signs. Adjust your speed, noise and light levels to scare off, or hide from whatever you think is out there. Poor judgment will lead to a watery grave.
Why similar: Submarine 41.6% ★, Underwater 26.8% ★, Survival Horror 8%, Horror 7%, Psychological Horror 5.9%
Guide a Nereid Freight submarine crew through Europa’s hostile under-ice oceans. Deliver essential cargo, salvage wrecks, repair failing stations, hunt dangerous lifeforms, and survive in the crushing darkness where every dive carries risk — and nothing stays quiet for long.
Why similar: Submarine 40% ★, Underwater 25.6% ★, Survival Horror 12.5%, Resource Management 6.2%, Exploration 4.4%
A submarine touring the Titanic has gone missing. As part of the coast guard, you have been called in to locate and rescue the crew before their oxygen runs out.
Why similar: Submarine 40.5% ★, Underwater 26.8% ★, Lovecraftian 7.7%, Psychological Horror 7%, Horror 5.6%
'Crushing Depths' is a first-person horror game set deep down on the ocean floor, you will take control of an underwater drone tasked with locating points of interest using 3D spatial sound and once found scan them to build a story, but be on careful lookout for anything that may lurk down there!
Why similar: Submarine 38.9% ★, Underwater 30.7% ★, Psychological Horror 9%, Horror 6.6%, Exploration 3.6%
As captain of the Pandora sub, you must explore the Trench and retrieve data from the Neptune wreckage. But beware - the trench is home to unimaginable horrors that will test your courage. Can you survive the terrors of the deep and complete your mission, or will you become the next victim?
Why similar: Submarine 38.2% ★, Underwater 25.6% ★, Survival Horror 11.8%, Lovecraftian 11.2%, Horror 6.4%
short horror underwater experience where you explore deeper and deeper a strange location on earth that seems to behave differently
Why similar: Submarine 43.8% ★, Survival Horror 15.8%, Psychological Horror 9.9%, Horror 8.4%, Survival 8.1%
A short horror game where you pilot a tiny submarine through an ocean of blood on an alien moon.
Why similar: Submarine 42.1% ★, Underwater 27.7% ★, Psychological Horror 9.4%, Horror 8.7%, Atmospheric 4.6%
A journey of the last ocean cleaner submarine that is tasked to restore the ecosystem of a dying earth. "Plasticalypse: TrashSub Adventures“
Why similar: Submarine 35.4% ★, Underwater 30.4% ★, Post-apocalyptic 6.7%, Exploration 5.8%, Inventory Management 5.7%
Short horror game where you survey the descent of a capsule through a hole in the middle of an ocean, with only 4 lights and your ears to ensure your surroundings remain clear.
Why similar: Submarine 41.8% ★, Underwater 30.5% ★, Horror 7.9%, Psychological Horror 7.6%, Atmospheric 4.5%
An underwater survival horror game where the Earth is covered in water
Why similar: Submarine 43.5% ★, Underwater 31.3% ★, Psychological Horror 8.4%, Horror 7.8%, Exploration 6.8%
The light is your only lifeline. Descend into a crushing, thalassophobic abyss where every photograph could be your last. Investigate unpredictable deep-sea horrors and explore the vast, dark unknown - all while being 'assisted' by a darkly sarcastic AI.
Why similar: Underwater 24.2% ★, Submarine 23.2% ★, Survival Horror 12%, Lovecraftian 9.4%, Psychological Horror 7.5%
Explore and navigate an underwater cave in your submarine.
Why similar: Submarine 44.2% ★, Underwater 28% ★, Psychological Horror 9.8%, Horror 8.4%, Atmospheric 5%
A short first-person horror game. An accident cripples your submarine while trying to find the wreck of the Titanic. In the darkness, you must restore life-support systems through tense puzzles, only to discover that you are not alone.
Why similar: Submarine 41.7% ★, Underwater 25.5% ★, Psychological Horror 10.9%, Horror 9.9%, Atmospheric 5.6%
As a cataclysmic event rocks the planet, you find yourself in an old, decrepit submarine tasked with only one goal: survive. Manage the internal systems to keep yourself alive and fend off undersea horrors as they attempt to cut your journey short.
Why similar: Submarine 57.5% ★, Underwater 33.5% ★, Horror 6.2%, Atmospheric 2.8%
The surface is dead. The war is lost. As a Rusted Retaliator, you must survive the post-apocalyptic ocean of 1963. Pilot submersibles, feed scrap to the Replicator, and mine Nukelium to earn Pressure Points from HQ. Buy better gear, fight the SeaBots, and reclaim the deep.
Why similar: Submarine 35.6% ★, Underwater 28.7% ★, Post-apocalyptic 10.4%, Alternate History 10.2%, Exploration 5%
Explore abandoned biospheres at the bottom of the ocean, alone or with up to 4 friends.
Why similar: Submarine 35.9% ★, Underwater 27.1% ★, Survival Horror 9.2%, Horror 8%, Psychological Horror 6.2%
Sunken Veins is a resource management horror game set in a deep sea mining facility. You collect resources deposited by an underwater drill, avoid adaptive monsters and drain away overwhelming floods of water caused from mining operations.
Why similar: Submarine 36.1% ★, Underwater 24.8% ★, Survival Horror 10.4%, Resource Management 7.7%, Survival 6.4%
Project Sever is a fusion of submarine simulator and horror. Master the controls of the Soviet Project "Sever" submarine and learn to keep it in working order to escape the deadly underwater trap and solve the mystery of the Anomalous Zone.
Why similar: Submarine 39.7% ★, Underwater 24.5% ★, Psychological Horror 7.4%, 1990's 6.2%, Horror 5.4%
Magnavis is a first-person 3D horror game for 2–4 player co-op. Pilot your submarine through tight caves without crashing, complete assigned missions, repair damaged systems, and whatever you do, don’t die.
Why similar: Submarine 43.7% ★, Underwater 27.6% ★, Survival Horror 13.4%, Horror 6.5%, First-Person 3.7%
Immerse yourself in a new adventure with Subnautica 2, an open-water survival game from the creators of the Subnautica series. Play alone or with friends as you explore alluring biomes and discover fascinating creatures. Craft vehicles, tools, and bases to survive this mysterious alien world.
Why similar: Underwater 37.1% ★, Survival Horror 12.3%, Survival 10.7%, Open World 9.5%, Horror 9%
CRUSH DEPTH is first-person sci-fi horror game set at the bottom of the ocean. A salvage operation that would set you up for life goes sideways when you realize you're not alone down there. You'll solve puzzles and run from danger as you uncover the mysterious fate of Eclipse Station.
Why similar: Submarine 41.8% ★, Underwater 33.6% ★, Horror 7.6%, Exploration 5.7%, Action-Adventure 4.6%
Barotrauma is a 2D co-op submarine simulator – in space, with survival horror and RPG elements. Steer your submarine, complete missions, fight monsters, fix leaks, operate machinery, man the guns and craft items, and stay alert: danger in Barotrauma doesn’t announce itself!
Why similar: Submarine 43.6% ★, Underwater 25.1% ★, Survival Horror 13%, Survival 9.7%, Horror 6.5%
Darkwater is a cooperative extraction horror game for 1-4 players. Command a submarine trapped under the ice of an alien planet. Battle enemy vessels and deep sea abominations as you hunt for resources. Do what it takes to survive.
Why similar: Submarine 35.9% ★, Underwater 22.7% ★, Survival Horror 10.4%, Resource Management 7.9%, Survival 7.2%
A mysterious signal. A missing crew. And the one man trying to piece it all together. As Abe Douglas, dive deep into a fully underwater metroidvania to explore massive oceanic biomes, battle monstrous bosses, and piece together a mystery that threatens not only your crew, but your own sanity.
Why similar: Submarine 39.4% ★, Underwater 28.2% ★, Lovecraftian 12.6%, Psychological Horror 7%, Exploration 5%
Rust Bucket is a short resource management horror game about uncovering data from a nuclear underwater accident, partially inspired by Iron Lung.
Why similar: Submarine 60.5% ★, Survival Horror 22.5%, Resource Management 13.4%, First-Person 3.7%
Descend into Lovecraftian horror aboard a claustrophobic military submarine. Assign tasks as a captain’s right hand, analyze sonar signals, make hard decisions, and keep the crew from madness. Dark horrors lurk both within… and beyond the hull.
Why similar: Submarine 30.3% ★, Underwater 19.8% ★, Lovecraftian 12.6%, Psychological Horror 11.1%, Horror 8.2%
A short exploration game, set in a secluded coastal village in North East Scotland. Explore Kellas Bay and it's surrounding forests, caves and ocean to uncover what lies beneath the fog-covered village.
Why similar: Submarine 32.6% ★, Underwater 20.5% ★, Alternate History 9.4%, Nonlinear 8.5%, Psychological Horror 7.4%
Survive in a harsh underwater environment filled with mysterious and aggressive fauna. Gather resources, build bases, and craft equipment to explore an underwater alien world! Swim through interconnected biomes in a metroidvania style.
Why similar: Submarine 54.1% ★, Underwater 33.8% ★, Open World 9.4%, Adventure 2.7%
Under the Water Depths is a first-person game in which you will dive into a trench in the middle of an unknown ocean. The depths of the sea hide sinister yet mystical secrets.
Why similar: Underwater 41.9% ★, Submarine 36% ★, Thriller 8.5%, Exploration 6.9%, Adventure 3.8%
Every descent is a deadly gamble. DIVE or DIE in the cursed abyss, face Eldritch horrors to uncover the mystery of the black rain. Scavenge and upgrade, recruit and sacrifice. Save your camp... The Flood is coming.
Why similar: Underwater 28.8% ★, Lovecraftian 12.8%, Survival Horror 12.5%, Post-apocalyptic 9%, Psychological Horror 7.8%
Explore the ice-encrusted ocean of Jupiter's moon Europa.
Why similar: Submarine 45.9% ★, Underwater 30.5% ★, Open World 8.5%, Exploration 6%, Atmospheric 4.1%
Voice of the Ocean is a single-player adventure about a lost world, and the echoes of a forgotten past. Use your voice to sing ancient melodies and explore a world lost beneath the waves. Dive into the depths to uncover the power within your song and learn why you may be the last of your kind.
Why similar: Submarine 46.9% ★, Underwater 24.2% ★, Post-apocalyptic 12.2%, Exploration 8.2%, Action-Adventure 6.3%
Join an expedition to the unexplored abyss – a fascinating world of strange creatures, lost vessels, and a wealth of untold secrets. Search for ancient wrecks, underwater trenches, missing airplanes, and even the Titanic. Climb on board your mini-sub and dive as deep as you dare!
Why similar: Submarine 46.9% ★, Underwater 37.5% ★, 1990's 6.5%, Exploration 6.3%, Atmospheric 2.9%
A first-person deep sea exploration game. Use only a torch to navigate through rusted structures, encountering both dangerous and harmless sea creatures. Uncover the mysteries of the trench, and experience the phobia-inducing atmosphere of the ocean floor.
Why similar: Submarine 43.9% ★, Underwater 32% ★, Exploration 7.8%, Horror 6%, Open World 5.6%
A short first-person horror experience that places you in the rusted out hull of a mysteriously abandoned shipwreck. Search for clues, solve puzzles, and uncover the mystery of the wreckage, but beware of the evil that lurks within.
Why similar: Submarine 40.1% ★, Underwater 26.2% ★, Lovecraftian 9.9%, Psychological Horror 8.8%, Horror 7.1%
Stan, a professional diver in the North Sea, is struggling to overcome a life-changing loss during an extended mission underwater. Stuck in his self-imposed solitude, he starts to experience strange events and will have to make the most significant choice of his life...
Why similar: Underwater 44% ★, Submarine 36.7% ★, Exploration 7.6%, Atmospheric 5.2%, Adventure 4.3%
Pilot a remotely operated submarine and explore the oceans! Defy the darkness and crushing pressure of the deeps as you chart unknown regions and study new species of ocean life.
Why similar: Submarine 39.3% ★, Underwater 30.8% ★, Nonlinear 9%, Open World 8.9%, Exploration 5.4%
Sinking Eternity is a single-player underwater exploration RPG. Survive extreme depths, hide from dangerous sea creatures, and uncover the secrets of a civilization lost for millennia.
Why similar: Underwater 31.3% ★, Submarine 30.7% ★, Survival 8.7%, Open World 7.8%, Exploration 5.8%
7821 Akuji is a first person liminal horror experience. Pilot a tiny, jury-rigged submersible to rescue a lost science crew.
Why similar: Submarine 53.3% ★, Underwater 33.7% ★, Horror 5.5%, First-Person 3.6%, Adventure 1.9%
A first-person submarine exploration game, where the you write and sketch your story as you navigates the frozen depths, manages the submarine's systems and come ever closer to uncovering the never-seen secrets beneath the ice.
Why similar: Submarine 39.9% ★, Underwater 27.2% ★, Alternate History 9.6%, Open World 8.5%, Exploration 4.6%
KAI is a game of Exploration and Adventure between the sidereal space and underwater depths. Skillfully lure and guide groups of fish to solve puzzles, access new areas and uncover the truth behind the mission entrusted to you, Akira, and the other crew members aboard the ship.
Why similar: Submarine 36.1% ★, Underwater 27.2% ★, Alternate History 10.5%, Open World 8.4%, Exploration 5%
Immerse yourself in an alien ocean in this open-world survival game. Explore the biomechanical depths, tame alien creatures, pilot submarines, and uncover the mysteries of the alien entity known as Thalassa.
Why similar: Submarine 40% ★, Underwater 31.9% ★, Open World 9.6%, Exploration 5.6%, Survival 4.8%
Explore the deepest depths of the ocean as you survey the environment by recording audio and taking pictures. Collect fuel found in the caves of these depths. Be carful though, Some thing lurks in these waters.
Why similar: Underwater 42.1% ★, Survival Horror 17%, Psychological Horror 16.3%, Horror 10.9%, Atmospheric 6%
Discover a vast and mysterious underwater world hidden beneath a remote cave on the surface. With procedurally generated cave systems and up to 9,999 unique underwater environments to explore, no two dives are ever the same.
Why similar: Submarine 42.7% ★, Underwater 26.2% ★, Exploration 8.3%, Action-Adventure 8%, First-Person 5.1%
You and up to 7 fellow subcontractors have been hired to deliver volatile cargo through dangerous depths. Stay coordinated, keep the payload intact, and try not to panic when everything goes wrong. The company expects delivery.
Why similar: Submarine 48.3% ★, Underwater 30.5% ★, Psychological Horror 6.5%, Horror 5.3%, Action-Adventure 4.3%
SONOROUS – Deep Down Below is an unforgiving underwater first-person survival game set in a dystopian world. Find your sunken research to save humanity from an eternal life on the open sea in a continuous fight for survival.
Why similar: Submarine 36.7% ★, Underwater 31.1% ★, Post-apocalyptic 9.8%, Open World 7.6%, Exploration 5.6%
Submarine VR takes you on a adventure-filled underwater simulation experience! Dive deep and cruise through the endless uncharted nature of the ocean and you will see clownfish, dolphins, penguins and mysterious sea animals. Get close to the sea surface and sail in the open sea with your cruise ship
Why similar: Submarine 60.4% ★, Underwater 24.3% ★, Open World 7.3%, Exploration 6.1%, Adventure 1.9%
Explore a mesmerizing alien world, filled with deep bioluminescent wonders and horrors alike. Old alien artefacts await uncovering, in your search for the lost crew of Lazarus, in the search for your family in the depths of planet Eo-III.
Why similar: Submarine 23.5% ★, Survival Horror 16.3%, Underwater 15% ★, Open World 13.6%, Survival 11.6%
Pilot a submarine through a world swallowed by the ocean and explore what remains of civilization. Catch unique creatures, trade across floating cities, and upgrade your vessel in a narrative adventure with exploration, resource management, and meaningful encounters.
Why similar: Underwater 29.3% ★, Submarine 25% ★, Inventory Management 13.5%, Resource Management 8.5%, Post-apocalyptic 7.3%