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Games Like Full Fathom

60+ similar titles based on shared tags and player behavior. Themes include Underwater, Submarine, Singleplayer, Atmospheric.

Similar Games

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  1. #1 Abyssal Rust
    97% matchNo user reviews
    Dev: Inmersionbit
    Windows

    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 27.5%, Survival Horror 11.1%, Open World 8.2%, Horror 6.1%

  2. #2 The Diving Bell
    96% matchNo user reviews
    Dev: Paul BanksPub: PHB Media LTD
    Windows

    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 28.8%, Underwater 19%, Survival Horror 11.9%, Psychological Horror 7.5%, Horror 6.3%

  3. #3 Why's It Getting DARKER?!
    96% matchNo user reviews2026
    Dev: Kenan'sGames
    Windows

    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: Submarine 25.3%, Underwater 20.3%, Survival Horror 10%, Lovecraftian 8.2%, Psychological Horror 7.1%

  4. #4 13km Deep
    95% matchNo user reviews
    Dev: RatLovers Studio
    Windows

    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 9.7%, Survival Horror 6.6%, Psychological Horror 6.1%

  5. #5 Seal The Breach
    94% matchNo user reviews
    Dev: ACarterGames
    Windows

    A 3D survival experience set within a cramped one-man submarine exploring a hostile ocean trench.

    Why similar: Submarine 39.8%, Underwater 16.6%, Lovecraftian 9%, Survival Horror 8.6%, Horror 7.8%

  6. #6 Scyla
    94% matchPositive80% of 15 reviews2024
    Dev: Belice StudiosPub: Voxel School
    Windows

    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 38.1%, Underwater 25.1%, Lovecraftian 10.4%, Survival Horror 7.7%, Nonlinear 7.5%

  7. #7 Sunken Seeker
    93% match4 user reviews50% of 4 reviews2026
    Dev: Reckonment Studio
    Windows

    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 43.2%, Underwater 30.9%, Exploration 6.4%, Resource Management 5.6%, Horror 5%

  8. #8 The Abyss Below
    92% matchMostly Positive77% of 35 reviews2026
    Dev: Broken RelayPub: PostHuman Interactive
    Windows

    The year is 1997. Pilot a small submersible into the depths of the Pacific to investigate a massive sonar anomaly. Navigate by instruments, scan targets, and uncover something far older than it should be.

    Why similar: Submarine 40.9%, Underwater 30.1%, Exploration 6.3%, Psychological Horror 5.9%, Horror 5%

  9. #9 Burn Depth
    91% matchNo user reviews
    Dev: Luke Van Zandt
    Windows

    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 9%, Post-apocalyptic 7.7%, Psychological Horror 6.4%

  10. #10 Submarine Terror
    91% matchPositive89% of 18 reviews2024
    Dev: Sungame Studio
    Windows

    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 6.6%, Nonlinear 3.7%

  11. #11 Deepophobia
    90% matchNo user reviews
    Dev: Hassan Saeed KarimPub: Said Karim (my dad lol)
    Windows

    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 13.5%, Lovecraftian 10.8%, Nonlinear 7.5%, Open World 7.2%

  12. #12 Titanic Terror
    89% matchNo user reviews
    Windows

    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 7.8%, Psychological Horror 6.9%, Horror 5.5%

  13. #13 The Trench
    89% matchVery Positive86% of 162 reviews2022
    Dev: Omar Chapa Hernandez
    Windows

    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 38.1%, Underwater 25.5%, Survival Horror 11.9%, Lovecraftian 11.4%, Horror 6.4%

  14. #14 ABYSS - 9
    88% matchNo user reviews
    Dev: Iron Cat Forge
    Windows

    In the year 5026, you are a disposable miner sent to the bottom of the ocean on the ABYSS-9 expedition. Pilot your 'iron coffin', manage unstable vital systems, and survive uncharted abyssal creatures. In the abyss, silence is as dangerous as the pressure.

    Why similar: Submarine 37.5%, Underwater 26.9%, Survival Horror 15.1%, Resource Management 4.6%, Atmospheric 4.3%

  15. #15 Ocean Pressure
    87% matchMixed66% of 29 reviews2023
    Dev: Ivan Huliakevich
    Windows

    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 6.9%, Psychological Horror 6.6%, Open World 6.5%

  16. #16 The Oily Depths
    84% matchVery Positive84% of 98 reviews2026
    Dev: Ryan R. Burns
    Windows

    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 40.6%, Underwater 23.3%, Survival Horror 10.6%, Psychological Horror 9.2%, Horror 6.2%

  17. #17 Plasticalypse - Submarine Adventures
    86% match9 user reviews56% of 9 reviews2021
    Dev: FLUXO GAMES
    Windows

    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 6.8%, Exploration 5.8%, Inventory Management 5.6%

  18. #18 Hadal
    85% matchNo user reviews2026
    Dev: CoralHeavens
    Windows

    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 40.1%, Underwater 25.7%, Survival Horror 12.6%, Resource Management 5.9%, Exploration 4.4%

  19. #19 Killer Depths
    84% match5 user reviews60% of 5 reviews2025
    Dev: Stardust Smithy
    Windows

    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 26.9%, Survival Horror 8.1%, Horror 6.9%, Psychological Horror 5.8%

  20. #20 Magnavis
    83% matchNo user reviews2026
    Dev: Vorles Games
    Windows

    Set in the depths of the Red Seas, Magnavis is a 1-4 player co-op submarine horror survival game. Manually operate grotesque ship systems powered by living organs, weld catastrophic leaks, and survive with your crew in an abyss where unknown terrors lurk in the absolute dark.

    Why similar: Submarine 38.6%, Underwater 21.8%, Survival Horror 9.8%, Survival 6.6%, Resource Management 6.3%

  21. #21 Aphotic Depths
    82% matchNo user reviews
    Dev: Deylene BensediraPub: sharkstunes
    Windows

    short horror underwater experience where you explore deeper and deeper a strange location on earth that seems to behave differently

    Why similar: Submarine 43.9%, Survival Horror 16%, Psychological Horror 9.8%, Horror 8.4%, Survival 8.1%

  22. #22 Flash Diving
    81% matchMostly Positive72% of 29 reviews2026
    Dev: Paraxodon
    Windows

    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 41.4%, Underwater 30.9%, Horror 8%, Psychological Horror 7.4%, Atmospheric 4.4%

  23. #23 Sea under the sea under the sea
    82% match6 user reviews17% of 6 reviews2024
    Dev: MA
    Windows

    An underwater survival horror game where the Earth is covered in water

    Why similar: Submarine 43.7%, Underwater 31.4%, Psychological Horror 8.3%, Horror 7.8%, Exploration 6.8%

  24. #24 Iron Lung
    81% matchVery Positive92% of 10,973 reviews2022
    Dev: David Szymanski
    Windows
    Median: 1.5 hrsMean: 2.1 hrs≥1hr: 69%

    A short horror game where you pilot a tiny submarine through an ocean of blood on an alien moon.

    Why similar: Submarine 42.2%, Underwater 27.7%, Psychological Horror 9.2%, Horror 8.7%, Atmospheric 4.6%

  25. #25 Submergent
    80% matchMostly Positive72% of 18 reviews2024
    Dev: 626 Interactive
    Windows

    Explore and navigate an underwater cave in your submarine.

    Why similar: Submarine 44.3%, Underwater 28.1%, Psychological Horror 9.6%, Horror 8.4%, Atmospheric 4.9%

  26. #26 Thalassophobia
    79% matchPositive100% of 12 reviews2024
    Dev: NGreenDev
    Windows

    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 6.1%, Atmospheric 2.8%

  27. #27 Sonorous | Deep Down Below
    78% matchNo user reviews
    Dev: HOONAYA
    Windows

    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 32.6%, Underwater 27.6%, Open World 9.7%, Post-apocalyptic 9.3%, Exploration 5%

  28. #28 Project SEVER
    78% matchNo user reviews2026
    Dev: Siberian MakeshiftPub: IndieArk
    Windows

    Project Sever is an adventure submarine simulator with a touch of horror. Master the controls of an old Project "Sever" submarine and learn to maintain it in working order to escape a deadly underwater trap and solve the mystery of the Anomalous Zone.

    Why similar: Submarine 39.7%, Underwater 24.5%, Psychological Horror 7.3%, 1990's 6.2%, Horror 5.4%

  29. #29 Subnautica 2
    73% matchVery Positive91% of 120,899 reviews2026
    Dev: Unknown Worlds Entertainment
    Windows
    Median: 10.3 hrsMean: 12.7 hrs≥1hr: 93%

    Subnautica 2 is an underwater survival adventure set on an all-new alien world, developed by Unknown Worlds. Play alone or with friends in 4-player co-op. Adapt to survive by building custom bases and crafting tools. Explore the unknown to uncover the mysteries hidden within the depths.

    Why similar: Underwater 36.8%, Survival Horror 12.1%, Survival 11.1%, Open World 10.1%, Horror 8.8%

  30. #30 Watertight
    76% matchVery Positive89% of 194 reviews2025
    Dev: Tiny Studio
    Windows

    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 10.8%, Horror 10.1%, Atmospheric 5.5%

  31. #31 Open Waters
    77% matchNo user reviews
    Dev: FluffyGameDev
    Windows

    Open Waters is a first-person ocean survival horror game. Stranded in a small boat, you must navigate treacherous waters, evade creatures of the deep, and find your way back to safety before the ocean drags you into its depths.

    Why similar: Underwater 35.5%, Lovecraftian 14.9%, Open World 10.8%, Survival Horror 10.4%, Horror 9.6%

  32. #32 Rusted Sea
    76% match2 user reviews0% of 2 reviews2026
    Dev: Meerkatapult Games
    Windows

    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 35.5%, Underwater 28.7%, Post-apocalyptic 10.4%, Alternate History 10.3%, Exploration 5%

  33. #33 Sunken Veins
    75% matchPositive100% of 24 reviews2025
    Dev: Skedaddle Games
    Windows

    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 36.2%, Underwater 24.9%, Survival Horror 10.5%, Resource Management 7.4%, Survival 6.4%

  34. #34 Subterror
    74% matchVery Positive90% of 475 reviews2025
    Dev: Team Monumental
    Windows
    Median: 2.5 hrsMean: 3.9 hrs≥1hr: 74%

    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 9.3%, Horror 8%, Psychological Horror 6.1%

  35. #35 Ice Moon Odyssey
    75% matchNo user reviews
    Dev: Game Quest Studios
    Windows

    Join the expedition! Explore the icy depths of Glacialis - a newly discovered moon of Neptune. Discover, collect, and survive.

    Why similar: Submarine 35.3%, Underwater 24.1%, Lovecraftian 10.8%, Open World 7.8%, Survival 6.6%

  36. #36 Discoveries of the Deep
    77% match1 user reviews100% of 1 reviews2021
    Dev: Capstone SoftwarePub: Ziggurat
    Windows

    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 47%, Underwater 37.5%, 1990's 6.5%, Exploration 6.3%, Atmospheric 2.8%

  37. #37 Depths of Sanity
    74% matchVery Positive88% of 92 reviews2022
    Dev: Bomb Shelter Games
    Windows

    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 39.2%, Underwater 28.2%, Lovecraftian 12.9%, Psychological Horror 6.9%, Exploration 5%

  38. #38 Silent Wreckage|寂靜沉輪
    73% matchNo user reviews
    Dev: DeepEcho
    Windows

    Dive into a sunken ocean liner lost in the deep sea. In this narrative-driven 3D survival horror puzzle game, explore a claustrophobic environment while managing limited air resources, solving puzzles, evading unknown horrors, and uncovering the truth behind a distortion of time and space.

    Why similar: Underwater 35.8%, Survival Horror 18.5%, Psychological Horror 14.4%, Horror 8%, Atmospheric 6.2%

  39. #39 Rust Bucket
    73% match1 user reviews100% of 1 reviews2024
    Dev: Cheese Tart
    Windows

    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 60.7%, Survival Horror 22.8%, Resource Management 12.9%, First-Person 3.6%

  40. #40 Static Dread: The Submarine
    72% matchNo user reviews
    Dev: solarsuit.gamesPub: Polden Publishing
    Windows

    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 30.4%, Underwater 19.7%, Lovecraftian 13.2%, Psychological Horror 10.9%, Horror 8.2%

  41. #41 Barotrauma
    70% matchVery Positive94% of 87,800 reviews2023
    Dev: FakeFishPub: Daedalic Entertainment
    Windows · Mac · Linux
    Median: 8.9 hrsMean: 55.5 hrs≥1hr: 91%

    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 43.7%, Underwater 25.2%, Survival Horror 13.1%, Survival 9.7%, Horror 6.4%

  42. #42 Under the Water Depths
    72% match9 user reviews50% of 9 reviews2023
    Dev: Submerged Squad
    Windows

    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 6.8%, Adventure 3.9%

  43. #43 DIVE or DIE - Children of Rain
    71% matchNo user reviews2026
    Dev: Drop Rate StudioPub: Dear Villagers
    Windows

    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 13.1%, Survival Horror 12.6%, Post-apocalyptic 9%, Psychological Horror 7.7%

  44. #44 Europa One
    71% matchPositive100% of 14 reviews2023
    Dev: Wicked Rooster
    Windows

    Explore the ice-encrusted ocean of Jupiter's moon Europa.

    Why similar: Submarine 45.9%, Underwater 30.5%, Open World 8.6%, Exploration 5.9%, Atmospheric 4.1%

  45. #45 CRUSH DEPTH
    69% matchVery Positive98% of 66 reviews2025
    Dev: Earth Giant
    Windows

    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%

  46. #46 Aquarift
    71% matchNo user reviews
    Dev: FloxStudios
    Windows

    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%, Underwater 33.8%, Open World 9.5%, Adventure 2.7%

  47. #47 Darkwater
    68% matchMostly Positive79% of 1,155 reviews2026
    Dev: Targon StudiosPub: Playstack
    Windows
    Median: 3.6 hrsMean: 6.2 hrs≥1hr: 86%

    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 36.1%, Underwater 22.7%, Survival Horror 10.6%, Resource Management 7.6%, Survival 7.2%

  48. #48 It Sleeps Below the Haar
    70% matchPositive84% of 31 reviews2024
    Dev: Arboreta Games
    Windows

    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 9.6%, Nonlinear 8.5%, Psychological Horror 7.3%

  49. #49 Under The Waves
    69% matchMostly Positive78% of 1,979 reviews2023
    Dev: Parallel StudioPub: Spotlight by Quantic Dream
    Windows
    Median: 2.6 hrsMean: 21.1 hrs≥1hr: 71%

    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 44.2%, Submarine 36.3%, Exploration 7.7%, Atmospheric 5.2%, Adventure 4.3%

  50. #50 Dark of the Depths
    70% matchNo user reviews
    Dev: GhastlyVastlyPub: Games At Dusk
    Windows

    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 7.7%, Horror 6%, Open World 5.6%

  51. #51 Dead Abyss
    69% matchMixed57% of 28 reviews2024
    Dev: Azalea Interactive
    Windows

    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 10.2%, Psychological Horror 8.7%, Horror 7%

  52. #52 Voice of the Ocean
    67% matchPositive83% of 42 reviews2025
    Dev: Pablo Mata GámezPub: Hogeschool West-Vlaanderen
    Windows

    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 46.8%, Underwater 24.1%, Post-apocalyptic 12.2%, Exploration 8.2%, Action-Adventure 6.4%

  53. #53 ARTDINK GAME LOG: Aquanaut's Holiday
    67% match2 user reviews100% of 4 reviews2026
    Dev: ARTDINK
    Windows

    The deep-sea exploration adventure that captivated countless players is back. What you discover in this underwater world brimming with freedom and challenges is entirely up to you. Follow your curiosity and make the most of your day off.

    Why similar: Submarine 44.3%, Underwater 33%, Exploration 7.7%, Open World 6.5%, 1990's 3.3%

  54. #54 Benthos
    68% matchNo user reviews
    Dev: Doodlefish Games
    Windows

    Benthos is a co-op submarine exploration game set in the depths of an alien ocean. Coordinate your crew to pilot the sub, man the guns, hunt monsters, and complete high-risk missions. Build new underwater facilities, upgrade your vessel, and uncover the secrets hidden beneath the ice.

    Why similar: Submarine 37%, Underwater 23.4%, Lovecraftian 9%, Survival 7.1%, Open World 6.7%

  55. #55 Remnants of R'lyeh
    68% matchNo user reviews
    Dev: Darktree Game StudioPub: Ultimate Games S.A.
    Windows

    Inspired by H.P. Lovecraft's Great Work. An ancient dark power is calling you and you need to find an exit. Face your greatest fear, fight, hide... you must escape before the underwater city rises...

    Why similar: Submarine 33.9%, Underwater 23.2%, Lovecraftian 11.3%, Survival Horror 10.6%, Psychological Horror 6.1%

  56. #56 There's Nothing Down There
    64% matchVery Positive87% of 308 reviews2026
    Dev: Tim Trankle
    Windows

    There's Nothing Down There is a short undersea horror exploration game. Descend into a sinkhole at the bottom of the ocean and discover the remains of a lost, yet not dead, civilization.

    Why similar: Submarine 58.5%, Underwater 14.5%, Horror 10.3%, Exploration 6.6%, First-Person 5%

  57. #57 Sinking Eternity
    67% matchNo user reviews2026
    Dev: ZeroByte
    Windows

    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 7.9%, Exploration 5.7%

  58. #58 Abyssalis
    67% matchNo user reviews
    Dev: Veneficus
    Windows

    Descend through the ocean layers, purify marine life, and survive the abyss in this bullet hell roguelite. Face colossal bosses, choose powerful upgrades, and uncover the curse's origin. Can you save the ocean before you become fish bait?

    Why similar: Submarine 48.2%, Underwater 38.7%, Atmospheric 5.2%, Exploration 3.5%, Action-Adventure 2.7%

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