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

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.

Thalassophobia
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.

Sonorous | Deep Down Below
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.
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 64.2% ★, Underwater 35.4% ★, Singleplayer 0.5%
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 37.2% ★, Underwater 30.4% ★, Base Building 11.4%, Open World 9.5%, Crafting 7.4%
A sinister entity lurks in the depths. Descend into the abyss and extract knowledge about it.
Why similar: Submarine 58.9% ★, Underwater 31.1% ★, Open World 8%, Adventure 1.6%, Singleplayer 0.5%
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 56.8% ★, Underwater 38.4% ★, Adventure 3.7%, Indie 0.6%, Singleplayer 0.5%
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 48.9% ★, Underwater 38.1% ★, Open World 10.2%, Adventure 2.6%, Singleplayer 0.3%
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 63.5% ★, Underwater 24.2% ★, Open World 6.5%, Adventure 2.7%, Action 2.1%
The ocean didn't get dirty on its own. Pilot your submarine through vast underwater worlds, collect the trash humanity left behind, and uncover what's been growing in the dark. Clean, explore, upgrade and try not to look too closely at what's following you.
Why similar: Submarine 59.6% ★, Underwater 33.8% ★, Adventure 3.8%, Crafting 2.6%, Singleplayer 0.2%
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 52.3% ★, Underwater 39.7% ★, Adventure 2.4%, Pixel Graphics 2.3%, Action 1.6%
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 57.1% ★, Underwater 38.9% ★, Adventure 3.1%, Indie 0.6%, Singleplayer 0.2%
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 47.6% ★, Submarine 41.5% ★, Adventure 6.3%, Open World 2.2%, Indie 1.4%
🌊 A physics-based underwater 2D platformer. 🚀 Propel yourself out of the water, chain trajectories, and dive always more deeply. 📸 Photograph strange creatures and follow an expedition whose outcome remains uncertain.
Why similar: Submarine 53.1% ★, Underwater 36.2% ★, Adventure 4.1%, Pixel Graphics 3.1%, 2D 2.7%
7821 Akuji is a first person liminal horror experience. Pilot a tiny, jury-rigged submersible to rescue a lost science crew.
Why similar: Submarine 58.7% ★, Underwater 35.1% ★, Adventure 2.8%, Pixel Graphics 2.5%, Indie 0.6%
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 56.8% ★, Underwater 42.9% ★, Singleplayer 0.3%
Explore the ice-encrusted ocean of Jupiter's moon Europa.
Why similar: Submarine 54.3% ★, Underwater 34.1% ★, Open World 8.6%, Adventure 2.7%, Indie 0.1%
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 56.6% ★, Submarine 29% ★, Adventure 5.4%, Action 3.7%, Open World 3.1%
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: Submarine 35.1% ★, Underwater 33.8% ★, Base Building 12.9%, Open World 7.7%, Crafting 7.2%
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 54.7% ★, Underwater 38.6% ★, Adventure 3.3%, Pixel Graphics 1.7%, Indie 0.9%
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 48.1% ★, Underwater 39.1% ★, Open World 5.5%, Adventure 3.9%, Action 1.8%
An underwater survival horror game where the Earth is covered in water
Why similar: Submarine 57.8% ★, Underwater 39.2% ★, Action 2%, Indie 0.5%, Singleplayer 0.4%
Adventure and submarine exploration game. Control your Bathyscaphe with the help of a logbook. Through the game puzzles, bullet-hell sequences, and skill-based challenges, you will be plunged miles and miles into the depths where the ocean seems to have no end.
Why similar: Submarine 56.3% ★, Underwater 33.6% ★, Adventure 3.5%, 2D 3.4%, Action 1.9%
A short horror game where you pilot a tiny submarine through an ocean of blood on an alien moon.
Why similar: Submarine 56.6% ★, Underwater 35.2% ★, Pixel Graphics 4.2%, Adventure 2.7%, Indie 1.3%
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 49% ★, Submarine 44.5% ★, Adventure 6.2%, Singleplayer 0.4%
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 55.3% ★, Underwater 34.7% ★, Open World 7.9%, Action 1.6%, Singleplayer 0.5%
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 46.8% ★, Underwater 35.3% ★, Open World 9.6%, Crafting 6.5%, Adventure 1.8%
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 57.8% ★, Underwater 35.9% ★, Adventure 4%, Indie 1.6%, Singleplayer 0.7%
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 59% ★, Underwater 36% ★, Adventure 4.2%, Singleplayer 0.9%
Join the expedition! Explore the icy depths of Glacialis - a newly discovered moon of Neptune. Discover, collect, and survive.
Why similar: Submarine 45.5% ★, Underwater 29.3% ★, Open World 8.5%, Crafting 7.3%, Pixel Graphics 3.6%
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 54.9% ★, Underwater 37.1% ★, Adventure 4.9%, Pixel Graphics 2.6%, Singleplayer 0.5%
Explore and navigate an underwater cave in your submarine.
Why similar: Submarine 60.6% ★, Underwater 36.2% ★, Adventure 2.8%, Singleplayer 0.4%
Control a submarine or a diver into the depths of unknown underwater worlds and take photographs of alien animals, plants and artefacts. Continue your journey through this casual, side-scroller, exploration game and collect stars to unlock more secrets before travelling to an alien home planet.
Why similar: Submarine 59.5% ★, Underwater 30% ★, Adventure 4.3%, 2D 4%, Indie 1.3%
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 54.5% ★, Underwater 38.4% ★, Open World 6.8%, Singleplayer 0.2%
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 59.9% ★, Underwater 37.5% ★, Adventure 2.2%, Singleplayer 0.2%, Indie 0.1%
Become the captain of a Los Angeles-class attack submarine. Strike without warning, sink enemy ships with different torpedoes, dominate the global rankings, and explore a living underwater world packed with historical wrecks and forgotten secrets. Fast, tactical, and fun submarine warfare.
Why similar: Submarine 61% ★, Underwater 36.4% ★, Action 2.3%, Singleplayer 0.3%
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 53.4% ★, Underwater 40.5% ★, Pixel Graphics 3%, Action 1.8%, Indie 0.8%
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 55.5% ★, Underwater 38.3% ★, Open World 6%, Singleplayer 0.3%
Explore a little seaside coast of submerged ruins, sunken ships and lonely islands.
Why similar: Submarine 52.2% ★, Underwater 32.2% ★, Adventure 8.1%, 2D 6.1%, Indie 0.8%
At first the alien outbreak spreading throughout the oceans was confined. We delayed our extinction rather than avert it. As part of a salvage crew, you search the hellish containment zones, where a treasure trove of lost tech can help you and your crew eke out a living in a slowly dying world.
Why similar: Submarine 53.8% ★, Underwater 38% ★, Adventure 4.5%, Action 3.1%, Singleplayer 0.7%
Become a fearless underwater explorer and reach the bottom of The Mariana Trench to win 20,000* REAL DOLLARS!
Why similar: Submarine 59.9% ★, Underwater 39.1% ★, Indie 0.7%, Singleplayer 0.4%
Sci-fi combat flight-sim featuring underwater stealth-action, and real-time strategy. Pilot the unique biological fighter Manta through the skies and through the depths as you command a fleet of warships, and mine the ocean floor for resources.
Why similar: Submarine 47.8% ★, Underwater 30% ★, Base Building 13.6%, Crafting 7.3%, Action 1.3%
Welcome to the dangerous micro world hidden inside the human body. Pilot an advanced microship through the bloodstream, brain and kidneys. Mine resources, fight microbes, craft ship modules and weapons, build bases, discover new microorganisms and find a cure for cancer. Don’t get eaten!
Why similar: Submarine 42.1% ★, Underwater 26% ★, Base Building 12.2%, Open World 8.8%, Crafting 7.3%
What would happen if during an expedition the submarine's engines stopped working and you only had your grappling hook to move and do your work?
Why similar: Submarine 55.9% ★, Underwater 34.5% ★, 2D 5.2%, Action 2.1%, Adventure 1.5%
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 58.2% ★, Underwater 36.8% ★, Adventure 3%, Action 1.8%, Singleplayer 0.1%
Chill out in a submarine as you learn Morse code! Submorse is an atmospheric, first-person game that teaches you the international Morse signals.
Why similar: Submarine 61.8% ★, Underwater 33.7% ★, 2D 2.7%, Singleplayer 1%, Indie 0.8%
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 52.5% ★, Underwater 35.7% ★, Pixel Graphics 4.1%, 2D 3.9%, Adventure 3.1%
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 59.6% ★, Underwater 36.1% ★, Adventure 2.3%, Action 1.3%, Singleplayer 0.8%
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 59.1% ★, Underwater 35.3% ★, Adventure 2.6%, Action 2.4%, Indie 0.6%
Take on the role of an underwater reef explorer, find a way to save the corals from extinction. Dive into the colorful waters of Water, explore and admire the local reef, explore the mystery of the island. Gather resources to create your own bases in order your survival.
Why similar: Underwater 41.4% ★, Open World Survival Craft 19.4% ★, Base Building 18.7%, Open World 9.1%, Crafting 7.5%
Stay hydrated, relax, and build your dream aquarium! HydroTick reminds you to drink water at your chosen intervals, rewards you with coins, and lets you collect unique fish, rare decorations, and create a soothing aquatic world.
Why similar: Submarine 47.1% ★, Underwater 29.3% ★, Base Building 13%, Crafting 7.3%, 2D 3.3%
Magnavis is a first-person 3D horror game for 1–4 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 60.5% ★, Underwater 33.6% ★, Pixel Graphics 3.7%, Action 1.5%, Singleplayer 0.7%
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.
Why similar: Submarine 54% ★, Underwater 33.9% ★, Open World 9.4%, Adventure 2.7%
Dive into the ocean's depths, face fearsome sea creatures, and collect their experience crystals. In this roguelite action game, upgrade your submarines with various combinations of weapons and chips. Become the Lord of the Ocean!
Why similar: Submarine 74.1% ★, Underwater 11.7% ★, Crafting 5.5%, 2D 3.6%, Action 3%
The Ender Ocean principle? Locate and collect waste (plastic bags, bottles, lost nets...) thanks to underwater robots connected to a collection boat, in order to valorize them afterwards, all from home.
Why similar: Underwater 50.6% ★, Submarine 48.7% ★, Singleplayer 0.7%
A 3D survival experience set within a cramped one-man submarine exploring a hostile ocean trench.
Why similar: Submarine 67.8% ★, Underwater 26.8% ★, Adventure 4.2%, Indie 0.8%, Singleplayer 0.3%
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 57.2% ★, Underwater 38.4% ★, Adventure 4.4%
It's simple. Operate your submarine through challenging tight cave systems to collect the target, while not scratching the cave walls under suboptimal conditions. Navigate carefully and consider every move in this slow pace, athmospheric, multiplayer, submarine simulation-lite.
Why similar: Submarine 63.7% ★, Underwater 35.6% ★, Singleplayer 0.8%
Embark on a relaxing journey in an underwater realm. Glide through captivating environments, embracing the tranquility of exploration and survival found in these Harmonic Depths.
Why similar: Submarine 54.5% ★, Underwater 38.4% ★, Open World 6.7%, Indie 0.2%, Singleplayer 0.2%
When the mysterious Doctor Hoffmann hires your submarine to explore the east Caribbean sea, you accept, unware of the danger he is leading you into...
Why similar: Submarine 53.8% ★, Underwater 33.3% ★, 2D 5%, Pixel Graphics 4%, Adventure 2.7%
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 63.8% ★, Underwater 34.6% ★, Indie 1%, Singleplayer 0.7%
FULL METAL COFFIN is a 3D co-op submarine simulator. Crew your vessel with up to 8 players. Load the torpedoes, survive depth charges, and eliminate the enemy. Fight for resource deposits below the Antarctic, and dominate the new frontier.
Why similar: Submarine 59.5% ★, Underwater 34.5% ★, Crafting 6%