- #1 Submechanic
97% match3 user reviews100% of 3 reviews2026
Dev: littlezander
Windows
Submechanic is a short horror game where you take an after-hours maintenance job at Captain Frill's Bar and Grill. You're required to climb down into the tanks in order to perform various repairs.
Why similar: Underwater 64.4% ★, Horror 17.8%, Atmospheric 7.8%, First-Person 4.9%, Adventure 3.5%
- #2 Gospel of Steel
96% matchNo user reviews
Dev: Marinex Studio
Windows
Gospel Of Steel is a first-person deep-sea welding horror game set in the shadow of a dying, bio-mechanical god. While employed by a cult, the player explores the depths alone, repairing pipelines and fending off the hostile ecosystem.
Why similar: Underwater 76.6% ★, Horror 14.4%, First-Person 4.1%, Adventure 3.2%, Indie 1.1%
- #3 Narcosis
96% matchMostly Positive76% of 1,469 reviews2017
Dev: Honor Code, Inc.
Windows · Mac
Median: 2.9 hrsMean: 4.0 hrs≥1hr: 83%
Survival, horror at the sunless depths of the Pacific Ocean: Stranded on the seafloor with low light and few tools, an industrial diver takes desperate steps to surface before his oxygen — and sanity — give out.
Why similar: Underwater 56% ★, Horror 16.4%, Mystery 9.2%, Atmospheric 6.9%, Adventure 5.3%
- #4 Barren Depths
95% match7 user reviews57% of 7 reviews2022
Dev: Kyle Obranovic
Windows
Escape a confusing cave system without being eaten in this short, underwater horror game.
Why similar: Underwater 70.9% ★, Horror 14.9%, Atmospheric 7%, First-Person 3.3%, Adventure 2.4%
- #5 Screams of the Abyss
94% matchNo user reviews2027
Dev: Larmiche
Windows
Descend into the abyss, following the trail of a vanished expedition. Piece together their story through the recordings they left behind and uncover why none of them ever returned to the surface.
Why similar: Underwater 52.4% ★, Horror 14.9%, Atmospheric 9.6%, Mystery 8.8%, Adventure 5.4%
- #6 Beyond Blue
94% matchVery Positive88% of 1,521 reviews2020
Dev: E-Line Media
Windows
Median: 3.0 hrsMean: 27.6 hrs≥1hr: 68%
Beyond Blue is a single-player narrative adventure that takes you deep into our planet’s beating blue heart. Explore the awesome wonder and unbounded mystery that exists within the world’s ocean.
Why similar: Underwater 82.2% ★, Adventure 5.5%, Female Protagonist 5%, Story Rich 2.7%, Atmospheric 2.2%
- #7 Polluted Flesh
93% match8 user reviews100% of 8 reviews2026
Dev: essarrgee
Windows
Very short on-rails collector game where you're stuck in the guts of a cosmic sea creature, polluted by waste.
Why similar: Underwater 78.9% ★, Horror 16.5%, First-Person 3.5%, Singleplayer 1.1%
- #8 Down Further
92% matchNo user reviews
Dev: SeaRuby Games
Windows
Explore the deepest parts of the ocean in this open-world, survival horror game. Fend off unknown creatures with only a few damaged devices in your submarine. Collect creature data, upgrade your vessel, and escape the deep ocean trenches in Down Further.
Why similar: Underwater 59.5% ★, Horror 13.9%, Point & Click 8.8%, Atmospheric 8.1%, Mystery 4.9%
- #9 The Void Below
91% matchNo user reviews
Dev: EXP Interactive
Windows
Capture footage in the abyssal depths of the ocean. The sub offers safety. The open water does not.
Why similar: Underwater 59.5% ★, Horror 15.9%, Mystery 10.1%, Atmospheric 8.8%, Adventure 3.1%
- #10 The Sirena Expedition
91% matchVery Positive83% of 139 reviews2023
Dev: Giraffe Cat
Windows
The Sirena Expedition is a short PSX-style horror-platformer in which you explore a mysterious underwater facility.
Why similar: Underwater 47.4% ★, Supernatural 13.6%, Horror 11.8%, Female Protagonist 9.2%, Mystery 7.2%
- #11 A Mermaid's Paradoxical Tale
90% matchNo user reviews
Dev: Stephen SearsPub: Knowledge-Engine LLC
Windows
Dive into Mermaid's Paradoxical Tale, a 3D exploration puzzle game. Traverse sun-kissed islands and eerie underwater caves, solve intriguing puzzles, and uncover the mystery of the dark creatures that lurk in the deep caves menacing the peaceful aquatic realm.
Why similar: Underwater 74.9% ★, Female Protagonist 15.4%, Adventure 5.8%, First-Person 2.4%, Indie 0.9%
- #12 Sharks and Minnows
89% matchVery Positive92% of 370 reviews2025
Dev: CollinPub: Collin's Game Company
Windows
Find supplies to maintain your stamina. Complete ten laps. Escape.
Why similar: Underwater 68.6% ★, Horror 25.4%, Indie 5.9%
- #13 Last Dive: Echo Trench
88% matchMixed67% of 21 reviews2026
Dev: Threshold Echo
Windows
Descend from the fragile safety of your diving bell into a dark shipwreck zone, search for sunken gold, survive escalating anomalies, and uncover what keeps pulling you back.
Why similar: Underwater 64.6% ★, Horror 18.4%, Atmospheric 8.8%, Adventure 6.1%, Indie 1.5%
- #14 Ami's Pearl Dive
87% matchNo user reviews
Dev: Soepkip Studio
Windows · Linux
Ami's Pearl Dive is a quaint underwater adventure game developed for the Game Boy Color! Help Ami dive deeper to find her missing mermaid friend, collect pearls and meet interesting faces along the way!
Why similar: Underwater 69.8% ★, Female Protagonist 15.4%, Mystery 7.3%, Adventure 6.1%, Indie 0.9%
- #15 Hadal Line
86% matchNo user reviews2026
Dev: Ebi OdorePub: Dancing Shrimp Games
Windows
事故で孤立した深海施設。頼れるのは通信室のチャット画面だけ——応答できる生存者は3人。返事を待たずに流れていく。夜ごとに決めるのは、限られた電力をどの区画に回すか。届く言葉は少しずつ記録と食い違う。矛盾を証拠に変えるテキストアドベンチャー。
Why similar: Underwater 48% ★, Horror 16.4%, Mystery 13.5%, Atmospheric 8%, Story Rich 7.2%
- #16 Deep Diving Adventures 2
86% matchNo user reviews
Dev: Salient GamesPub: Ultimate Games S.A.
Windows
Dive deeper than ever before! Search for Atlantis across 8 unique global locations. Manage your oxygen, breach the surface to plan your next move, and use dynamite or underwater robots to carve your path. Discover over 50 marine species in this immersive diving adventure.
Why similar: Underwater 79.1% ★, Atmospheric 10.5%, Adventure 5.8%, First-Person 2.4%, Indie 1.6%
- #17 Mythic Ocean
85% matchVery Positive92% of 171 reviews2020
Dev: Paralune LLCPub: Untold Tales
Windows
Median: 2.2 hrsMean: 21.9 hrs≥1hr: 58%
Teach the gods to create a better universe - or mess it all up in Mythic Ocean, a narrative exploration game where your choices shape the fate of the cosmos.
Why similar: Underwater 74.6% ★, Adventure 12.9%, Atmospheric 7.7%, Indie 4.7%
- #18 Saturation
84% matchNo user reviews
Dev: Pawdventure Games
Windows · Linux
Saturation is a short horror game where you work as a saturation diver and deep sea welder. After six months at the bottom of the ocean, your shift is coming to an end, but so are your nerves...
Why similar: Underwater 73.3% ★, Horror 15.5%, First-Person 5%, Adventure 4.5%, Indie 1.3%
- #19 Abaddon's Veil
84% match1 user reviews100% of 1 reviews2024
Dev: Scott H.F. Dunbar
Windows
A short horror game where you pilot a tiny spaceship through turbulent "waters" surrounding a supermassive blackhole. Retrieve and scan sites of interest while managing your noise footprint.
Why similar: Underwater 73.6% ★, Atmospheric 12%, Adventure 5.8%, Mystery 5.4%, First-Person 3.3%
- #20 A Home Below
82% matchNo user reviews
Dev: Hermit House
Windows
For a hermit crab, it’s difficult to find a place you can call home. Explore a large, underwater house, searching for a real seashell. Meet creatures and discover long buried secrets in this third-person, atmospheric adventure.
Why similar: Underwater 65.7% ★, Atmospheric 10.1%, Mystery 8.9%, Story Rich 7.6%, Adventure 4.8%
- #21 Song of the Deep
83% matchVery Positive85% of 871 reviews2016
Dev: Insomniac GamesPub: GameTrust Games
Windows
Median: 3.5 hrsMean: 4.9 hrs≥1hr: 89%
From the creators of Ratchet & Clank, Song of the Deep is a metroidvania-style action-adventure game following a young girl’s quest into the unknown to find her missing father. It combines underwater discovery, skill, and suspense with a powerful story.
Why similar: Underwater 74.5% ★, Female Protagonist 17%, Adventure 8.5%
- #22 Deep Drift Signal Below
81% match3 user reviews100% of 3 reviews2026
Dev: LU WEI
Windows
Dive into a beautiful yet deadly pixel deep sea and track unknown signals from the abyss. Manage oxygen, pressure, currents, and creatures while exploring. Capture life with a harpoon, find relics and chests, upgrade gear, and face hidden giants. The deeper you go, the greater the risk.
Why similar: Underwater 76.8% ★, Atmospheric 11.7%, Adventure 8.4%, Indie 1.8%, Singleplayer 1.3%
- #23 Guilt Lurks Below
82% matchNo user reviews
Dev: The Ambitious Game Dev
Windows
Explore the deepest depths of an under ground ocean as you survey the environment by recording audio and taking pictures. Collect fuel found in the caves of these depths. Be careful though, Some thing lurks in these waters.
Why similar: Underwater 66.7% ★, Horror 17.2%, Atmospheric 8.8%, Adventure 6.7%, Singleplayer 0.6%
- #24 Silent Wreckage|寂靜沉輪
81% 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 61.9% ★, Horror 13.8%, Atmospheric 10.2%, Adventure 6.3%, Story Rich 4.4%
- #25 Touhou a Mermaid's Reverie
80% matchNo user reviews
Dev: Kayo Mayo
Windows · Linux
A cute 2D underwater puzzle adventure based on Touhou Project.
Why similar: Underwater 76.9% ★, Female Protagonist 14.1%, Atmospheric 4.3%, Adventure 3.8%, Indie 0.9%
- #26 Under The Waves
79% matchMostly Positive77% of 2,178 reviews2023
Dev: Parallel StudioPub: Spotlight by Quantic Dream
Windows
Median: 2.6 hrsMean: 19.2 hrs≥1hr: 70%
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 73.9% ★, Atmospheric 8.6%, Adventure 8%, Story Rich 6.6%, Indie 1.7%
- #27 Mermade
79% matchNo user reviews
Dev: The Mermakers
Windows
You were surgically altered into a mermaid and are now trapped within an abandoned aquarium. Adapt to your new body, survive the horrors lurking within and find a way to escape.
Why similar: Underwater 75.3% ★, Horror 22.4%, Indie 1.3%, Singleplayer 1%
- #28 Unknown Contact
78% matchNo user reviews
Dev: laki
Windows
A short underwater horror game where you pilot a one-person submarine into a lightless trench, tracking a signal that has started answering back.
Why similar: Underwater 62.8% ★, Horror 18.3%, Atmospheric 8.4%, Story Rich 4.7%, First-Person 4.4%
- #29 RebreatheR
77% matchMixed68% of 19 reviews2026
Dev: mc_try
Windows
Underwater, you're alone. Or almost alone. You're a diver doing routine work: cleaning the seabed, collecting waste, fixing pipes. But deep down there's always something wrong. Explore, repair, survive — and try not to lose your mind.
Why similar: Underwater 50.6% ★, Supernatural 12.9%, Horror 12.5%, Mystery 10%, Atmospheric 6.9%
- #30 SAMUDRA
78% matchMixed64% of 151 reviews2021
Dev: Khayalan Arts
Windows
Median: 3.5 hrsMean: 7.2 hrs≥1hr: 58%
SAMUDRA is an award-winning hand-illustrated deep sea journey.
Why similar: Underwater 62.4% ★, Horror 11.4%, Atmospheric 8.3%, Point & Click 7.3%, Adventure 5.2%
- #31 Transcendence in the Poolrooms
77% matchNo user reviews
Dev: nLabs
Windows
Transcendence in the Poolrooms is an adventure game where you will experience infinite relaxation. Fall into another world where you will explore haunting places beyond reality, a liminal space unlike any you have ever been to and may never escape.
Why similar: Underwater 56.2% ★, Horror 16.8%, Adventure 10.4%, Atmospheric 7.6%, Supernatural 5.6%
- #32 Wonders of the Deep
76% match4 user reviews100% of 4 reviews2025
Dev: Salty Water
Windows
Wonders of the Deep is a third-person underwater exploration adventure with puzzles, marine wildlife, and diving mechanics in a mysterious world.
Why similar: Underwater 64.6% ★, Adventure 11%, Mystery 8.8%, Atmospheric 7.2%, Female Protagonist 6.8%
- #33 Diving Bear
76% matchNo user reviews
Dev: VaragtP
Windows
Play as a bear diving underwater to explore the ocean’s depths. Collect shells, plants, treasures, and other valuable items from the underwater world. Use your finds to upgrade your gear, allowing you to dive deeper. The deeper you go, the more secrets and hidden places you can discover.
Why similar: Underwater 80.5% ★, Adventure 8.4%, Mystery 5.5%, Atmospheric 4.7%, Indie 0.9%
- #34 Diluvion: Resubmerged
75% matchMixed62% of 1,133 reviews2017
Dev: Arachnid GamesPub: Good Shepherd Entertainment
Windows · Mac · Linux
Median: 5.2 hrsMean: 6.5 hrs≥1hr: 86%
Diluvion is a 3D deep sea, Jules Verne inspired, exploration game with RPG elements and thrilling submarine combat. As the Captain of your own vessel, you must grow and manage your crew as you search for the secrets of the past in a hauntingly beautiful flooded world.
Why similar: Underwater 90.2% ★, Adventure 7.1%, Indie 2.3%, Singleplayer 0.4%
- #35 Aquavern
74% matchNo user reviews
Dev: Cainedev11
Windows
Aquavern is an underwater survival game where you're forced into the dark web's deadliest game show. Recover loot to sell and buy upgrades that will help you survive deadly creatures and treacherous biomes, pushing deeper in search of the artifact that can set you free.
Why similar: Underwater 59.7% ★, Adventure 15.5%, Horror 14.3%, Indie 5.5%, First-Person 4.9%
- #36 To The Deep
73% matchNo user reviews2026
Dev: kay56
Windows
Dive into a surreal deep sea dream. Survive by devouring and evolving, and encounter a cast of strange, mysterious companions. Explore, upgrade, and uncover the "truth" hidden beneath the beautiful waves. This is more than an adventure—it is a dimension-breaking dive to the deep.
Why similar: Underwater 75.9% ★, Adventure 8.3%, Atmospheric 6.3%, Story Rich 5.2%, First-Person 3.4%
- #37 The Abyss Below
72% matchVery Positive80% of 60 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: Underwater 65.8% ★, Horror 10.8%, Mystery 8.6%, Atmospheric 5.1%, First-Person 4.3%
- #38 Under the Water Depths
73% 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 75.7% ★, Mystery 12.9%, Adventure 8%, First-Person 3%, Singleplayer 0.4%
- #39 Offcoast
72% match2 user reviews100% of 2 reviews2024
Dev: Ice-Cold Shivering Studios
Windows
The rogue-like strategy game Offcoast takes place in a subterranean, underwater landscape.
Why similar: Underwater 96.7% ★, Indie 2.7%, Singleplayer 0.7%
- #40 CRUSH DEPTH
70% matchVery Positive99% of 67 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: Underwater 60% ★, Horror 13.5%, Female Protagonist 11.4%, Story Rich 5%, Atmospheric 4.7%
- #41 Hoarder
71% matchNo user reviews
Dev: byzelPub: Awaken Realms
Windows
Clean. Possess. Control. Hoarder begins as a mundane cleaning simulator that spirals into a distant nightmare. Scavenge the hoarders’ house, recover what should be forgotten, and if you go far enough, you might reach the top of the pyramid or the bottom of the abyss.
Why similar: Underwater 55.1% ★, Mystery 14.6%, Atmospheric 10.1%, Adventure 10%, Story Rich 5.8%
- #42 Ceto-7
71% matchNo user reviews2026
Dev: M.A.D Lad Games
Windows
Ceto-7 is a single-player underwater survival horror. Play as a salvage diver navigating a flooded alien mining facility, hunted by an apex predator, and hired to destroy sensitive corporate data. The deeper you go, the harder it becomes to ignore what you've been hired to bury.
Why similar: Underwater 80.9% ★, Story Rich 7.4%, Adventure 5.2%, First-Person 5.1%, Indie 1%
- #43 Dive
73% matchPositive92% of 12 reviews2018
Dev: Bala Vicknesh
Windows
Dive is a 2d pixel art platformer that takes place underwater. You cannot jump in this game, instead you use the ability to raise and lower pillars of water to gain vertical movement and solve puzzles.
Why similar: Underwater 78.8% ★, Adventure 17.6%, Indie 2.2%, Singleplayer 1.4%
- #44 Subnautica 2
67% matchVery Positive91% of 128,024 reviews2026
Dev: Unknown Worlds Entertainment
Windows
Median: 10.6 hrsMean: 13.6 hrs≥1hr: 94%
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 69.6% ★, Horror 16.7%, Atmospheric 5.7%, First-Person 3.7%, Adventure 3.6%
- #45 TRAWL
70% matchNo user reviews2026
Dev: JosephTheFishPub: Astro Inc.
Windows
A horror point-and-click FNAF-like game where you must bottom-trawl the ocean floor to collect fish to turn into money. Use money to upgrade your ship and its defenses. Ecodyne's experiments hunt you down for disturbing their slumber.
Why similar: Underwater 57.2% ★, Horror 14.8%, Point & Click 12.1%, First-Person 5.5%, Adventure 5%
- #46 Pact of Joy: Prologue
70% matchVery Positive94% of 65 reviews2023
Dev: Just Sauce Studio
Windows
As Jack Argyle, you are tasked with restoring communication at the underwater ex-Aegis facility known as Phorcys Station. Be careful, or risk joining the spirits trapped inside.
Why similar: Underwater 58% ★, Horror 14.6%, Mystery 10.3%, Story Rich 5.6%, First-Person 3.9%
- #47 Pact of Joy
69% matchPositive85% of 41 reviews2023
Dev: Just Sauce Studio
Windows
Experience the tragedy of Pact of Joy as you explore the dark corridors of Phorcys Station in search of your girlfriend, Lila.
Why similar: Underwater 59.7% ★, Horror 13.6%, Mystery 7.9%, Atmospheric 5.8%, Story Rich 5.2%
- #48 Nurek (1982)
69% matchNo user reviews2026
Dev: Raul Meza
Windows
You take on the role of a diver who has been kidnapped by an organization that is using you to find some ancient artifacts. They have tried to obtain these artifacts in the same way but have failed, and they will not rest until they have them and place them on a statue.
Why similar: Underwater 68.4% ★, Horror 15.1%, Adventure 6.6%, First-Person 5.9%, Story Rich 2.1%
- #49 Open Waters
69% 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 67.8% ★, Horror 18.3%, Adventure 7%, Atmospheric 4.9%, First-Person 1.5%
- #50 Lammana: The Looe Island Mystery
68% matchNo user reviews
Dev: Darkling Room
Windows
Journey to Lammana, through the historic 'found footage' of William H Boston. Explore the cursed island off Cornwall's coast. Retrace the steps of a young man who disappeared in 1924. 'Play through' surviving footage to discover a dark mystery involving treasure, exploration and sea monsters.
Why similar: Underwater 33.7% ★, Mystery 14%, Supernatural 10.6%, Point & Click 10.2%, Horror 10.1%
- #51 Solitude Underwater
68% matchMixed60% of 84 reviews2022
Dev: Maximus AktypisPub: Big MA16 Studios
Windows · Linux
Solitude Underwater is a short horror adventure game. Two treasure-hunting brothers are searching for sunken riches off the coast of South Africa, only to find themselves immersed in catastrophe after one of them gets trapped in a cage, deep inside shark-infested waters.
Why similar: Underwater 53.7% ★, Horror 23.3%, Adventure 10.4%, Atmospheric 5.7%, First-Person 4.8%
- #52 Wreck Below
67% matchNo user reviews2026
Dev: Tide Hermit
Windows
Wreck Below is an underwater horror game where you dismantle wrecks and avoid the unseen threat of The Arbiter.
Why similar: Underwater 71.6% ★, Horror 15.2%, Atmospheric 5.7%, Adventure 3.9%, First-Person 2.6%
- #53 Killer Depths
67% 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: Underwater 56.4% ★, Horror 14.6%, Supernatural 10.9%, Atmospheric 7.8%, Adventure 5.5%
- #54 Sunken Seeker
66% 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: Underwater 70.2% ★, Horror 11.4%, Atmospheric 6.1%, Adventure 5.7%, First-Person 5%
- #55 Unending Aqua
66% matchNo user reviews2026
Dev: Britney Pringle Games
Windows
Explore a mysterious tropical island resort. Collect items and solve puzzles to progress. Survive against dangerous enemies. Piece together the story of the hotel and uncover the dark secrets that it holds.
Why similar: Underwater 55.9% ★, Horror 15.5%, Atmospheric 9.8%, Mystery 7.5%, Adventure 6.7%