- #1 Last Dive: Echo Trench
97% matchMixed67% of 21 reviews2026
Dev: Trenchveil Studio
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 53.6% ★, Psychological Horror 17.2%, Horror 7.3%, Adventure 7.1%, Dark 5.6%
- #2 #7-J5Z: The Driftwood Experiment
96% matchPositive87% of 30 reviews2025
Dev: Andrew "VAGRIENT" BrayPub: Andrew VAGRIENT Bray
Windows
A simple and short cozy game where you play as an unusual robot, exploring an underwater cave system.
Why similar: Underwater 46.2% ★, Collectathon 19.7%, Hand-drawn 9.6%, Adventure 6.2%, Mystery 5.7%
- #3 Treasure Dive
96% matchNo user reviews
Dev: Ilikeoreos47
Windows
Grab loot, avoid fish lol
Why similar: Underwater 53.7% ★, Collectathon 17.7%, Casual 12.3%, Arcade 8.1%, 2D 5.5%
- #4 The Dive
95% matchMixed57% of 77 reviews2021
Dev: W0nnaFight
Windows
Linear underwater horror game about a search dive that quickly turns into fight for survival after an encounter with hellish creature.
Why similar: Underwater 48.5% ★, Psychological Horror 13.3%, Psychological 9.3%, Dark 7.8%, Horror 5.2%
- #5 Abaddon's Veil
94% 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 60.3% ★, Psychological Horror 18.7%, Atmospheric 7.2%, Adventure 6.2%, Dark 3.9%
- #6 The Void Below
94% 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 53% ★, Psychological Horror 15.2%, Dark 7.6%, Mystery 7.5%, Horror 6.5%
- #7 Whalefall
93% matchNo user reviews
Dev: Sachi APub: Cryptic Solstice
Windows
Follow a mysterious marine biologist down to the depths to study a whalefall at the bottom of the ocean. Photograph specimen, collect samples and discover more about your closed-off marine biologist as her mind unravels and she believes there is something down there with her.
Why similar: Underwater 67.6% ★, Mystery 8.6%, Adventure 6.5%, Horror 6.5%, Atmospheric 5.8%
- #8 Guilt Lurks Below
92% 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 56.1% ★, Psychological Horror 20.4%, Adventure 7.3%, Horror 6.7%, Atmospheric 5.5%
- #9 Narcosis
91% matchMostly Positive76% of 1,466 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 56.6% ★, Psychological Horror 15.7%, Mystery 7.8%, Horror 7.7%, Adventure 7%
- #10 The Littlest Fry
91% matchPositive92% of 12 reviews2024
Dev: Finnish FriesPub: Ahlman Games
Windows
You are a small goldfish who has to protect a youngling while discovering how unforgiving the ponds in the wilderness are. Your objective is to defend a baby fish from predators while out maneuvering them while evading other obstacles that may be in your way while searching for safer waters.
Why similar: Underwater 65.5% ★, Hand-drawn 13.4%, Adventure 8.6%, Casual 7%, 2D 2.7%
- #11 Hoarder
90% 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 45.4% ★, Psychological Horror 22.3%, Adventure 10.8%, Mystery 10.1%, Atmospheric 6.1%
- #12 Diving Bear
89% 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 68.5% ★, Adventure 9.3%, Casual 8.5%, Mystery 3.9%, 2D 3.5%
- #13 A Home Below
89% 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 58.9% ★, Emotional 7.4%, Mystery 6.7%, Atmospheric 6.7%, Story Rich 6.4%
- #14 Silent Wreckage|寂靜沉輪
88% 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 55% ★, Psychological Horror 21.1%, Adventure 7.3%, Atmospheric 6.7%, Horror 5.6%
- #15 Submechanic
87% matchNo user reviews
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 71.8% ★, Horror 9.1%, Atmospheric 6.4%, Linear 6%, Adventure 5.1%
- #16 Euphausia superba: The Antarctic Krill
86% matchNo user reviews2026
Dev: Ruru Owl Interactive
Windows · Mac
Swim, let yourself carried with ocean currents, and search for phytoplankton alongside krill, a small crustacean. Guide a krill on a fascinating journey to reach the ice floe in this relaxing, interactive wildlife documentary.
Why similar: Underwater 67.5% ★, Casual 8.8%, Adventure 6.7%, Emotional 5.2%, Atmospheric 4.3%
- #17 Traíras
86% matchNo user reviews
Dev: Marcos RiffelPub: Riffel Games
Windows
For those who love exploring the underwater worlds in games, "Traíras" is the perfect adventure!
Why similar: Underwater 69% ★, Arcade 7.2%, Adventure 5.9%, Hand-drawn 5.7%, Colorful 4.5%
- #18 Mermade
84% 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 67.2% ★, Psychological Horror 21.6%, Horror 9.3%, Singleplayer 1.8%
- #19 Protecting seagrass 保护海草
84% match3 user reviews0% of 3 reviews2025
Dev: gamescdk
Windows
Sharks are coming, come and protect the seaweed. By placing seaweed and jellyfish to block the attack of sharks, let's see how many levels can be stopped. Come and try it out.
Why similar: Underwater 73.1% ★, Casual 16.8%, 2D 7.5%, Singleplayer 2.7%
- #20 ScubaVenture: The Search for Pirate's Treasure
85% match3 user reviews100% of 3 reviews2021
Dev: SoftdiskPub: Ziggurat
Windows
Scour the wreckage of a pirate ship in this colorful 2D side scrolling underwater action adventure! Fight off all manner of sea creatures and rival divers with your harpoon gun and bombs as you gather treasure but beware of ghastly pirate ghosts seeking to reclaim what was once theirs!
Why similar: Underwater 67.9% ★, Collectathon 19.1%, Adventure 6.8%, Colorful 2.6%, 2D 2.5%
- #21 Down Further
83% 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% ★, Hand-drawn 11.8%, Horror 6.4%, Dark 6.2%, Atmospheric 5.9%
- #22 Reef Escape
82% match1 user reviews100% of 1 reviews2023
Dev: 8bit Bosses StudiosPub: MAGIC Spell Studios
Windows · Linux
Travel the underwater dangers of the reef in a breathable air bubble. Test your reflexes as you avoid obstacles and carefully explore each stage to grab items essential for clearing each level.
Why similar: Underwater 57.4% ★, Adventure 13.2%, Casual 11.6%, Hand-drawn 9.7%, 2D 3.8%
- #23 Nurek (1982)
80% matchNo user reviews
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 58.8% ★, Psychological Horror 15.6%, Adventure 7.5%, Horror 6%, Casual 5.2%
- #24 Beyond Blue
81% matchVery Positive88% of 1,513 reviews2020
Dev: E-Line Media
Windows
Median: 2.9 hrsMean: 27.7 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 83.8% ★, Adventure 7.4%, Casual 3.3%, Story Rich 2.5%, Atmospheric 1.6%
- #25 DeepBubbles
79% match6 user reviews71% of 6 reviews2025
Dev: BubblesPark
Windows
A dreamy idle aquarium game set in the deep sea, where players collect, feed, and evolve a variety of fish to build their own underwater paradise. Tap bubbles to release food, attract fish, complete tasks, and relax in a soothing aquatic world.
Why similar: Underwater 75% ★, Casual 11.5%, 2D 6%, Colorful 4%, Singleplayer 3.5%
- #26 Deep Drift Signal Below
78% 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 71.8% ★, Adventure 10.2%, Atmospheric 8.1%, 2D 7.4%, Singleplayer 2.5%
- #27 Unknown Contact
79% 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 57.3% ★, Psychological Horror 18.2%, Horror 7.7%, Atmospheric 5.6%, Story Rich 4%
- #28 Bepuzzled Jigsaw Puzzle: Aquatic
82% matchNo user reviews2019
Dev: Team SpikkeeePub: Spikkeee
Windows · Mac · Linux
103 Jigsaw Puzzles of underwater and marine awesome! Three sizes of puzzle: 8 x 8 = 64 pieces 16 x 16 = 128 pieces 32 x 32 = 1024 pieces Timer and hints What great value!
Why similar: Underwater 76.5% ★, Casual 23.5%
- #29 Spectrum Siege
78% match1 user reviews100% of 1 reviews2025
Dev: Fantasy Vortex
Windows
Master the art of strategy in Spectrum Siege, a vibrant turn-based game of grid domination. Jump, capture, and outmaneuver your opponents on a dynamic board.
Why similar: Underwater 62.7% ★, Collectathon 19.4%, Colorful 5.3%, 2D 3.9%, Casual 3.8%
- #30 Under the Water Depths
77% 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 67.5% ★, Mystery 9.6%, Adventure 9.4%, Emotional 5.6%, Dark 4.6%
- #31 Hadal Zone
76% matchNo user reviews2026
Dev: Wolf Blaze
Windows
Survive this puzzle-horror adventure and uncover the truth behind the terrible story hiding in the depths of the aquarium! But beware: once you cross the point of no return, there is no going back...
Why similar: Underwater 44.5% ★, Psychological Horror 14.9%, Lore-Rich 9.2%, Horror 6.5%, Emotional 5.4%
- #32 fishy
76% matchVery Positive95% of 80 reviews2021
Dev: I Choose Paradise
Windows · Mac · Linux
Fishy is a heartfelt visual novel about friends, enemies, acceptance, and monsters. Explore the aquarium, face your fears, and maybe make a friend. here fishy fishy f̵̥͘͠i̷̱͉͋͑s̵͙̈͘h̵͖̅y̶̜͘
Why similar: Underwater 45.7% ★, Psychological Horror 12.5%, Hand-drawn 9.8%, Emotional 8.8%, Atmospheric 4.9%
- #33 Gospel of Steel
75% 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 86.5% ★, Horror 7.3%, Adventure 4.7%, Singleplayer 1.5%
- #34 Transcendence in the Poolrooms
75% 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 51.7% ★, Psychological Horror 12.8%, Adventure 12.6%, Horror 7.2%, Psychological 5.4%
- #35 tuna hake's underwater
73% matchVery Positive98% of 102 reviews2025
Dev: osuika
Windows · Linux
you are a fish who does tricks
Why similar: Underwater 75.2% ★, Collectathon 20.4%, Colorful 3.2%, Singleplayer 1.2%
- #36 Polluted Flesh
73% match7 user reviews100% of 7 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 82.5% ★, Horror 7.9%, Arcade 7%, Singleplayer 2.5%
- #37 To The Deep
74% 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 69% ★, Adventure 9.8%, Psychological Horror 9.7%, Story Rich 4.5%, Atmospheric 4.2%
- #38 Dive
77% 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 70.6% ★, Adventure 20.7%, 2D 6%, Singleplayer 2.7%
- #39 Sammy The Sharky
72% matchPositive100% of 15 reviews2025
Dev: Dan's Games
Windows
Dodge, dive, and survive as you move fish to escape the hungry shark and compete for the highest score on the global leaderboard.
Why similar: Underwater 52.8% ★, Casual 17%, Arcade 11.8%, Atmospheric 8.4%, 2D 8%
- #40 Unending Aqua
72% 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 49.2% ★, Psychological Horror 19.8%, Adventure 7.8%, Atmospheric 6.3%, Horror 6.3%
- #41 TBoF (The Book of Fredley)
73% match6 user reviews83% of 6 reviews2022
Dev: Grapefruit Studios
Windows
Gather the Pages, Mend the Book, and harvest the innocent to defy The Reaper. A retro stealth-adventure. Collect Keys to progress and avoid enemies while you explore the town and search for the missing pages that Fredley needs to fix his book and bring his friend back to life.
Why similar: Collectathon 18%, Psychological Horror 13.7%, Psychological 12.2%, Mystery 10.7%, Dark 9.8%
- #42 These Eyes
71% matchNo user reviews2026
Dev: Project Outsider
Windows
These Eyes is a no-text adventure game with elements of action, platforming, quests, and horror. Explore locations, solve puzzles, and interact with other characters.
Why similar: Psychological Horror 24.9%, Hand-drawn 17.8%, Psychological 9.9%, Dark 9.1%, Adventure 8.7%
- #43 Pact of Joy
71% 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 53.8% ★, Psychological Horror 7.8%, Emotional 7.1%, Lore-Rich 6.5%, Mystery 6%
- #44 White Hook River
71% matchNo user reviews2026
Dev: Frostspektrum Interactive AB
Windows
Experiment Anglerfish: White Hook River invites you to enjoy ice fishing and calming cold snow. But something seems... strange. Anyway, fish, upgrade, chat and explore. But still, what hides beneath the ice and snow?
Why similar: Underwater 41.8% ★, Collectathon 16%, Psychological Horror 12.6%, Psychological 8.5%, Mystery 8.1%
- #45 Hypnotique : Beyond Death
70% matchNo user reviews
Dev: Caduna
Windows
Have you ever wondered of what truly lies Beyond Death? Bora Bard, after surviving a suicide attempt, is introduced to Hypnotic therapy in the Roth Asylum; discovering different realities as she explores the traumatic memories of other patients, uncovering dark truths and unveiled mysteries.
Why similar: Psychological Horror 24.3%, Hand-drawn 15.4%, Mystery 10.5%, Psychological 7.6%, Story Rich 7.6%
- #46 Sonar Scout
69% matchPositive100% of 26 reviews2024
Dev: Dan SchumacherPub: Spelkollektivet
Windows
Pilot your submarine to activate and reestablish a network of beacons while carefully utilizing your sonar to navigate the low-visibility depths of the ocean.
Why similar: Underwater 45.3% ★, Collectathon 14.6%, Psychological Horror 11.8%, Dark 8%, Arcade 5.1%
- #47 Lumara
69% matchNo user reviews
Dev: Fabrizio Spadaro
Windows · Mac
Descend into a corrupted abyss as a light-wielding anglerfish in this haunting deep-sea adventure. Evade deadly predators, solve physics-based puzzles, uncover forgotten knowledge, and use your light to push back shadows and restore what was lost.
Why similar: Underwater 64.3% ★, Dark 9.1%, Atmospheric 7.3%, Psychological Horror 6.8%, Adventure 6.8%
- #48 Mutant Fish
70% match1 user reviews100% of 1 reviews2024
Dev: Rebels
Windows
Bite, shoot, dash, survive
Why similar: Underwater 54% ★, Hand-drawn 22.9%, Arcade 8.1%, Casual 7.4%, 2D 6.6%
- #49 Barren Depths
70% 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 81.1% ★, Horror 7.9%, Atmospheric 5.9%, Adventure 3.6%, Singleplayer 1.5%
- #50 黄泉園(Yomi no Sono)
68% matchNo user reviews2026
Dev: Karam Works
Windows
A first-person horror exploration where Japanese mythology meets thalassophobia. With no power to resist, observe and evade as you wander the otherworld of Yomi. Flee, or bear your karma and seek atonement—your choices shape the ending. Yomi sees all that you are.
Why similar: Underwater 48% ★, Psychological Horror 14.7%, Psychological 9.5%, Lore-Rich 6.7%, Horror 6%
- #51 AquaDream
67% matchPositive100% of 28 reviews2025
Dev: Gossiam Games
Windows
Dive into AquaDream! Guide your anglerfish through intricate underwater mazes. Collect stars, solve puzzles, and avoid perilous obstacles. Experience a captivating deep-sea adventure filled with hidden treasures and mysteries in this immersive aquatic world.
Why similar: Underwater 57.1% ★, Collectathon 22.4%, Dark 5.3%, Casual 5.1%, 2D 4.7%
- #52 Touhou a Mermaid's Reverie
67% matchNo user reviews
Dev: Kayo Mayo
Windows · Linux
A cute 2D underwater puzzle adventure based on Touhou Project.
Why similar: Underwater 75.9% ★, Collectathon 14.3%, Adventure 5%, Atmospheric 3.1%, 2D 1.7%
- #53 Tulip
66% matchVery Positive99% of 71 reviews2024
Dev: ashleyypox
Windows
You are a very sad bunny. You cannot stop crying. You might have to drink something gross. You are Tulip. Wander through a storybook countryside, gather ingredients for a strange brew, and get to know your adorable animal neighbors in an odd quest to alleviate your incurable sadness.
Why similar: Hand-drawn 24.9%, Collectathon 20.1%, Adventure 12.3%, Casual 12%, Story Rich 8.2%
- #54 Offcoast
66% 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 90.6% ★, 2D 8.1%, Singleplayer 1.3%
- #55 Scylla's Depths
66% matchNo user reviews2026
Dev: PigeonPub: Pigeon Studios
Windows
Scylla's Depths Underwater Horror game, This game features detailed health and radiation systems you're managing more than just a health bar with the dynamic damage and Combat systems. Almost everything is procedural and physics based.
Why similar: Underwater 72.4% ★, Psychological Horror 8.6%, 2D 7.6%, Horror 5.3%, Atmospheric 3.4%
- #56 Feeding Frenzy 2 Deluxe
68% matchOverwhelmingly Positive97% of 2,764 reviews2006
Dev: PopCap Games, Inc.
Windows
Median: 54 minMean: 8.7 hrs≥1hr: 48%
The feeding frenzy begins again! Swim and swerve through underwater worlds, chow down on smaller fish, and chomp your way to ocean supremacy. But watch out: boatloads of pesky predators are looking to make lunch out of you.
Why similar: Underwater 59.2% ★, Casual 24.3%, Arcade 9.6%, 2D 3.7%, Singleplayer 3.2%
- #57 Watertight
64% matchVery Positive88% of 199 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: Underwater 44.8% ★, Psychological Horror 18%, Horror 8.1%, Psychological 7.3%, Atmospheric 6.8%