
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.

Submarine Terror
A sinister entity lurks in the depths. Descend into the abyss and extract knowledge about it.
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 35.3% ★, Singleplayer 0.5%
A sinister entity lurks in the depths. Descend into the abyss and extract knowledge about it.
Why similar: Submarine 59% ★, Underwater 31.1% ★, Open World 7.9%, Adventure 1.5%, 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 49% ★, Underwater 38.1% ★, Open World 10.1%, Adventure 2.5%, 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 63.7% ★, Underwater 24.2% ★, Open World 6.5%, Adventure 2.6%, Action 2.1%
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 39.2% ★, Underwater 31.3% ★, Base Building 13.6%, Crafting 7.5%, Open World 6.8%
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 47.3% ★, Submarine 41.8% ★, Adventure 6.3%, Open World 2.2%, Indie 1.4%
7821 Akuji is a first person liminal horror experience. Pilot a tiny, jury-rigged submersible to rescue a lost science crew.
Why similar: Submarine 58.8% ★, Underwater 35% ★, 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 56.9% ★, Underwater 42.8% ★, Singleplayer 0.3%
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 29.1% ★, Adventure 5.4%, Action 3.7%, Open World 3.1%
Explore the ice-encrusted ocean of Jupiter's moon Europa.
Why similar: Submarine 54.4% ★, Underwater 34.1% ★, Open World 8.5%, Adventure 2.6%, Indie 0.1%
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 7.6%, Crafting 7.2%
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 48.2% ★, Underwater 39% ★, Open World 5.5%, Adventure 3.8%, 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%
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 55.4% ★, Underwater 38% ★, Adventure 3.2%, Pixel Graphics 1.8%, Indie 0.9%
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 48.9% ★, Submarine 44.6% ★, Adventure 6.1%, Singleplayer 0.4%
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 35.1% ★, Pixel Graphics 4.2%, Adventure 2.7%, Indie 1.3%
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 55.4% ★, Underwater 34.7% ★, Open World 7.9%, Action 1.6%, Singleplayer 0.5%
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 3.9%, Indie 1.6%, Singleplayer 0.7%
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 46.9% ★, Underwater 35.3% ★, Open World 9.5%, Crafting 6.5%, Adventure 1.8%
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 4.1%, Singleplayer 0.9%
'Crushing Depths' is a first-person horror game set deep down on the ocean floor, you will take control of an underwater drone tasked with locating points of interest using 3D spatial sound and once found scan them to build a story, but be on careful lookout for anything that may lurk down there!
Why similar: Submarine 55.1% ★, Underwater 41% ★, Adventure 2.8%, Singleplayer 0.5%, Indie 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%
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 38.2% ★, Open World 5.9%, 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 53.5% ★, Underwater 40.5% ★, Pixel Graphics 3%, Action 1.8%, Indie 0.8%
Explore a little seaside coast of submerged ruins, sunken ships and lonely islands.
Why similar: Submarine 52.3% ★, Underwater 32.2% ★, Adventure 8%, 2D 6.2%, Indie 0.8%
Become a fearless underwater explorer and reach the bottom of The Mariana Trench to win 20,000* REAL DOLLARS!
Why similar: Submarine 60% ★, Underwater 39% ★, 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 47.9% ★, Underwater 30% ★, Base Building 13.6%, Crafting 7.3%, Action 1.3%
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 53.9% ★, Underwater 37.9% ★, Adventure 4.4%, Action 3%, Singleplayer 0.7%
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%
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 61.9% ★, Underwater 33.6% ★, 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 52.7% ★, Underwater 35.5% ★, Pixel Graphics 4.1%, 2D 3.9%, Adventure 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 42.2% ★, Underwater 26% ★, Base Building 12.2%, Open World 8.7%, 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 56% ★, Underwater 34.5% ★, 2D 5.2%, Action 2.1%, Adventure 1.5%
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 60.1% ★, Underwater 37.5% ★, Adventure 2.2%, Singleplayer 0.2%
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% ★, 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 59.2% ★, Underwater 35.2% ★, Adventure 2.6%, Action 2.4%, Indie 0.6%
Magnavis is a first-person 3D horror game for 2–4 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% ★, Underwater 35.7% ★, Pixel Graphics 3.8%, Action 0.5%
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 47.2% ★, Underwater 29.3% ★, Base Building 12.9%, Crafting 7.3%, 2D 3.3%
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 41.5% ★, Open World Survival Craft 19.2% ★, Base Building 18.8%, Open World 9.1%, Crafting 7.6%
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 50.5% ★, Submarine 48.7% ★, 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 54.1% ★, Underwater 33.8% ★, 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 11.6% ★, Crafting 5.5%, 2D 3.6%, Action 2.9%
Pilot a remotely operated submarine and explore the oceans! Defy the darkness and crushing pressure of the deeps as you chart unknown regions and study new species of ocean life.
Why similar: Submarine 51.6% ★, Underwater 38.1% ★, Open World 9.8%, Singleplayer 0.5%
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 57.3% ★, Underwater 38.4% ★, Adventure 4.3%
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 58.3% ★, Underwater 36.8% ★, Adventure 3%, Action 1.8%, Singleplayer 0.1%
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 54.6% ★, Underwater 38.3% ★, Open World 6.7%, Indie 0.2%, Singleplayer 0.2%
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 35.5% ★, Singleplayer 0.8%
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 59.6% ★, Underwater 34.4% ★, Crafting 6%
Can you survive the dangerous depths of the blue? Use your lightning-fast reflexes to evade hungry fish, collect points, and reach the top of the leaderboard. Watch out—you could become prey at any moment!
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 34.5% ★, Indie 1%, Singleplayer 0.7%
Under the Sea is a 3D survival mini game based on time attack, race against time to survive, collect the lights and gain time to live in a world full of enemies.
Why similar: Submarine 58% ★, Underwater 38% ★, Adventure 4%
A first-person submarine exploration game, where the you write and sketch your story as you navigates the frozen depths, manages the submarine's systems and come ever closer to uncovering the never-seen secrets beneath the ice.
Why similar: Submarine 52.6% ★, Underwater 33.9% ★, Open World 9.4%, Adventure 3.3%, Singleplayer 0.8%
2.5D adventure game where you are a magical fish who collects polyps (baby corals) to plant pieces of coral reef while exploring the ocean. Powers such as shoot, lunge and electricity are learnt from other fish and obtained to unlock new zones after defeating obstacles on each level.
Why similar: Underwater 46.6% ★, Submarine 45.1% ★, Adventure 5%, Action 3%, Indie 0.2%
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 60.4% ★, Underwater 32.8% ★, 2D 5%, Action 1.4%, Singleplayer 0.4%
Dive into a freezing underwater adventure on an alien planet. Below Zero is set two years after the original Subnautica. Return to Planet 4546B to uncover the truth behind a deadly cover-up. Survive by building habitats, crafting tools, & diving deeper into the world of Subnautica.
Why similar: Underwater 39.9% ★, Open World Survival Craft 20.4% ★, Base Building 15.2%, Open World 11.2%, Crafting 6.5%
2D underwater physics-based action co-op for up to 4 players. Crew a submarine, harpoon loot and drag it back before oxygen runs out. Deeper the dive – higher the stakes and darker the horrors. All wrapped in an absurdly cute deep-sea exploration vibe with unforgettable chaotic dogs.
Why similar: Submarine 37.7% ★, Underwater 37.1% ★, 2D 7.9%, Adventure 7.2%, Action 4.8%
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 51.3% ★, Underwater 39.1% ★, Adventure 3.6%, 2D 2.9%, Action 1.7%
Dive into this magical underwater adventure. Explore a corrupted environment moving with your two transformations to help fix the disaster that almost ended life around your world. Ellisar is a third person contemplative exploration and adventure game.
Why similar: Submarine 59.3% ★, Underwater 36.9% ★, Adventure 3.8%