
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.
60+ similar titles based on shared tags and player behavior. Themes include Horror, Underwater, Singleplayer, First-Person.

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.

Last Dive: Echo Trench
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.

Gospel of Steel
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.
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% ★, Horror 21.5%, Psychological Horror 20.3%, 3D 2.6%, Indie 1.6%
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 72% ★, Horror 19.3%, 3D 6.2%, Indie 1.3%, Singleplayer 1.2%
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 53.1% ★, Psychological Horror 23.8%, Horror 19.5%, 3D 2.7%, Singleplayer 0.9%
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 50.7% ★, Psychological Horror 24%, Horror 16.1%, Puzzle 4.6%, 3D 3.2%
This Game is Casual 3D Horror Game.
Why similar: Underwater 37.6% ★, Psychological Horror 28.7%, Horror 23.5%, 3D 7.5%, Indie 1.4%
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 61.6% ★, Horror 18.6%, Psychological Horror 10%, Simulation 4%, 3D 3.8%
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 66.9% ★, Horror 26.3%, 3D 4.1%, Indie 1.4%, Singleplayer 1.3%
Escape a confusing cave system without being eaten in this short, underwater horror game.
Why similar: Underwater 69.6% ★, Horror 20.8%, 3D 7.2%, Indie 1.2%, Singleplayer 1.2%
Capture footage in the abyssal depths of the ocean. The sub offers safety. The open water does not.
Why similar: Underwater 54.5% ★, Horror 20.7%, Psychological Horror 19.2%, 3D 4.4%, Singleplayer 0.6%
Very short on-rails collector game where you're stuck in the guts of a cosmic sea creature, polluted by waste.
Why similar: Underwater 72.9% ★, Horror 21.7%, 3D 3.4%, Singleplayer 2.1%
Find supplies to maintain your stamina. Complete ten laps. Escape.
Why similar: Underwater 60.8% ★, Horror 32.1%, Indie 7%
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 55.5% ★, Horror 23.2%, Psychological Horror 19%, Indie 2.2%
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 53.9% ★, Psychological Horror 17.6%, Horror 17%, 3D 7.4%, Puzzle 1.9%
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 50.3% ★, Psychological Horror 27%, Horror 20.4%, Indie 1.3%, Singleplayer 1%
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 53.1% ★, Horror 22.1%, Psychological Horror 20.8%, Simulation 2.1%, Indie 1%
Step into a haunting journey through Dreary Lake Asylum, where reality blurs with nightmare. Inspired by the classic PSX survival horror era, Suffocate plunges you into a fever dream of a plot that will test your logic, courage, and sanity.
Why similar: Underwater 42.3% ★, Psychological Horror 16.7%, Horror 16.1%, Third Person 12.4%, 3D 6.4%
How long will you survive in this open water diving experience as you go head to head with terrifying Great Whites as they threaten to tear you apart?!
Why similar: Underwater 62.7% ★, Horror 13.5%, Gore 13.1%, Simulation 4%, 3D 3.7%
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 45.9% ★, Psychological Horror 22.7%, Horror 18.1%, Puzzle 6.8%, 3D 5.1%
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 75.3% ★, Horror 22.4%, Indie 1.3%, Singleplayer 1%
Linear underwater horror game about a search dive that quickly turns into fight for survival after an encounter with hellish creature.
Why similar: Underwater 54.5% ★, Psychological Horror 18.4%, Horror 17.9%, Gore 4.7%, 3D 3.6%
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 67.2% ★, Horror 15.3%, Psychological Horror 9.8%, Simulation 5.4%, Singleplayer 2.2%
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 69.5% ★, Psychological Horror 26.6%, 3D 4%
Live and work in complete darkness at the bottom of the ocean, in a simulation of one of the most extreme professions on the planet: saturation diving. But with only about 5% of the deep ocean explored, imagine what could be lurking down there with you in the dark?
Why similar: Underwater 67.1% ★, Psychological Horror 22.8%, Simulation 9%, Singleplayer 1.1%
A psychological horror puzzle about an strange VHS tape that captured a disturbingly realistic ritual. Each viewing changes what happens on screen. Notice these changes, figure out what they mean and see if you can rewrite the ending.
Why similar: Psychological Horror 31.5%, Horror 26.7%, Gore 11.2%, Puzzle 10.9%, 3D 9.2%
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 47.7% ★, Psychological Horror 27.9%, Horror 23.3%, Indie 1.1%
A 3D Psychological Horror game where you navigate through tense levels filled with dread, fear, isolation and suffering as an unknown presence lurks beyond, leaving a trail of haunting sounds that are both oppressive and foreboding. Containing approximately 4-8 hours of disturbing gameplay.
Why similar: Horror 35.3%, Psychological Horror 30.7%, Gore 15.6%, 3D 15.4%, Singleplayer 3%
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: Underwater 55.8% ★, Horror 20.7%, Psychological Horror 15.8%, 3D 4.8%, Singleplayer 1.5%
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: Underwater 43.3% ★, Horror 24.3%, Psychological Horror 21.5%, Puzzle 6.4%, 3D 3%
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 60% ★, Horror 14.1%, Psychological Horror 13.7%, 3D 6.6%, Simulation 4.1%
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 62.5% ★, Horror 21.4%, Psychological Horror 11.9%, 3D 3.2%, Singleplayer 1.1%
Based on real-life haunted tunnels, this is a first-person horror game. Can you escape the tunnel filled with fear and tension and make it back home safely?
Why similar: Horror 38.3%, Psychological Horror 35.4%, 3D 10.4%, Simulation 10.2%, Singleplayer 3.4%
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 53% ★, Horror 22.7%, Psychological Horror 16.2%, Puzzle 4.8%, 3D 3.4%
Wreck Below is an underwater horror game where you dismantle wrecks and avoid the unseen threat of The Arbiter.
Why similar: Underwater 63.9% ★, Horror 19.3%, Psychological Horror 11.5%, 3D 3.8%, Singleplayer 0.8%
Anomaly hunting, ten feet underwater. Swim, don't walk. You're trapped in a flooded pool that loops forever. Watch every corridor for the one detail that's wrong, then turn back before it takes you. Short first-person psychological horror. No combat.
Why similar: Underwater 51.5% ★, Psychological Horror 22.1%, Horror 12.1%, Puzzle 6.5%, 3D 5%
Leta’s life changed in one moment. She and her friend Lina found an old music box in the mountains... and soon Lina disappeared, leaving behind only a photograph and the ominous music box. Uncover the secrets in atmospheric third-person horror game.
Why similar: Horror 29.7%, Gore 24.3%, Psychological Horror 22.3%, Third Person 17.6%, Indie 6%
FPS/Slasher/Horror for people with strong nerves. Tomato Way it`s like your favorite video game, but better.
Why similar: Psychological Horror 33.7%, Horror 31.7%, Gore 27.4%, Indie 3.8%, Singleplayer 3.5%
A video you must never play. What happened to the influencer who vanished?
Why similar: Underwater 54.8% ★, Horror 25.1%, 3D 9%, Psychological Horror 6.4%, Singleplayer 2.6%
Set in a sunless town cursed by the Architect, Mysteries of Black Hollow is a shop management and extraction game. Ride your wagon into blighted lands, gather relics, and trade dark heirlooms to restore the church. But beware: every fortune has its price.
Why similar: Horror 47.4%, Psychological Horror 36%, Simulation 9.9%, Singleplayer 4.3%, Indie 2.4%
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 62.3% ★, Horror 24%, Psychological Horror 10.5%, 3D 2.3%, Singleplayer 0.9%
Dive down and see what lies beneath the surface. Discover a vast underwater world as different fishes. The game does not offer any real "Game Play" but is more of a simulation.
Why similar: Underwater 83.6% ★, Simulation 9%, 3D 5.1%, Singleplayer 2.3%
A short horror game where you pilot a tiny submarine through an ocean of blood on an alien moon.
Why similar: Underwater 51% ★, Horror 22.9%, Psychological Horror 20.1%, 3D 3.9%, Indie 2.1%
Spending the first night in a new apartment can be quite nervewracking. New sounds, and thin walls that seperate you from others in the complex. Do you trust your new surroundings?
Why similar: Horror 41.1%, Psychological Horror 38.5%, Simulation 11.9%, Indie 6.4%, Singleplayer 2.1%
Delivery personnel headed to a condominium building to deliver a package.
Why similar: Horror 38%, Psychological Horror 33.2%, Third Person 21.2%, Simulation 3.9%, Indie 1.9%
A first-person psychological horror experience set in a forgotten Saudi village beneath the mysterious mountain of Harfa. Explore abandoned homes, uncover chilling secrets, solve puzzles, and face the darkness lurking within the mountain.
Why similar: Horror 41.8%, Psychological Horror 38.8%, Puzzle 11.3%, Indie 4.7%, Singleplayer 3.4%
Can you hold your breath when panic sets in? Experience the terror of deep-sea cave diving. Scavenge resources and fight to survive as you navigate procedurally generated underwater caves stalked by an apex predator!
Why similar: Underwater 56.8% ★, Psychological Horror 22.1%, Horror 19%, Singleplayer 1.1%, Indie 1%
As an employee of a mysterious organization your job is to monitor live surveillance camera footage and spot anomalies using your sharp eyes and good memory. Can you survive the entire night shift or will you succumb into paranoia?
Why similar: Horror 41.5%, Psychological Horror 40.3%, Puzzle 9.8%, Indie 5.2%, Singleplayer 3.1%
a p̶e̶r̶f̶e̶c̶t horror game
Why similar: Horror 48.1%, Psychological Horror 44.2%, Indie 4.2%, Singleplayer 3.4%
Experience the arrival of The Last Tape's protagonist in this short horror adventure that reveals what happened before the main events. Explore Lurmont’s abandoned facilities, avoid the mysterious creature, and descend step by step into a hell you might not escape from
Why similar: Horror 45.8%, Psychological Horror 45.2%, Singleplayer 4.5%, Indie 4.5%
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 91% ★, Simulation 5%, Indie 2.6%, Singleplayer 1.5%
Experience true psychological horror as you explore nightmares inspired by the creator's struggles with depression and OCD. The defenseless protagonist must avoid monstrous manifestations of what haunts his subconscious in his quest to wake up into reality.
Why similar: Horror 39.8%, Psychological Horror 36.7%, Gore 18.2%, Indie 3.2%, Singleplayer 2.1%
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 80.7% ★, Third Person 7.2%, Puzzle 5.3%, 3D 4.5%, Indie 1.3%
A free, VHS styled, first-person found footage horror game, which runs exactly for 5 minutes and 30 seconds.
Why similar: Horror 40.7%, Psychological Horror 34.3%, Gore 19%, Indie 4.4%, Singleplayer 1.5%
Bleakmoor House is a psychological horror game where you navigate a shifting maze of dark rooms, solve puzzles, and uncover the mansion’s secrets. Face terrifying encounters and unravel the twisted history to survive the deadly traps within.
Why similar: Horror 30.1%, Psychological Horror 30.1%, Gore 11%, Puzzle 8.2%, Simulation 7%
COLD ABYSS is a relaxing and atmospheric exploration game where you repair internet cables on the bottom of the ocean. There are no enemies or other forms of danger down there. Just you.
Why similar: Underwater 52.2% ★, Psychological Horror 17.5%, Horror 16.7%, 3D 6.6%, Simulation 4%
An underwater survival horror game where the Earth is covered in water
Why similar: Underwater 59.1% ★, Horror 20.8%, Psychological Horror 18.3%, Singleplayer 0.9%, Indie 0.8%
A ritual unearthed, tethered to a world in-between, plunging those around it into despair. With a jade mirror that reveals restless spirits, Professor Nathaniel Cheng travels through distorted reality and romanticized memory to save an innocent soul. What will you lose to save the ones you love?
Why similar: Psychological Horror 36.2%, Horror 30.3%, Gore 11%, Third Person 9.9%, Puzzle 6.7%