Best Underwater Games on Steam
Games set beneath water, with diving, oceans, submarines, or aquatic life.
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1Raft - Raft™ throws you and your friends into an epic oceanic adventure! Alone or together, players battle to survive a perilous voyage across a vast sea! Gather debris, scavenge reefs and build your own floating home, but be wary of the man-eating sharks!
Jun 20, 2022
In this game, you can…
- drop anchor at an island, jump off to loot it, and realize your raft can drift away if you didn't secure it first.
- use antennas and a receiver to follow radio coordinates to story locations packed with puzzles and notes explaining why the world flooded.
- play co-op where one person builds, another cooks, and you can carry unconscious teammates back to bed like it's normal.
- start on a 2x2 raft with a plastic hook.
- yank floating trash with a hook, then turn it into a purifier, grill, sail, bed, and research table as your raft becomes a real ship.
- reinforce your raft so a shark stops tearing off platforms, turning it from a threat into background noise.
- dive underwater to scavenge reefs for ore and rare materials, then surface to unlock higher-tier crafting.
- build nets that automatically catch drifting debris, so the ocean feeds you a constant stream of materials.
2Subnautica - Descend into the depths of an alien underwater world filled with wonder and peril. Craft equipment, pilot submarines and out-smart wildlife to explore lush coral reefs, volcanoes, cave systems, and more - all while trying to survive.
Jan 23, 2018
In this game, you can…
- throw a fish to distract a predator, then have it come back carrying scrap metal for you.
- pilot a giant submarine you can live in, including growing food onboard for long expeditions.
- take a mech suit into extreme depths and outfit it with a drill and grappling hook to mine and swing around.
- crash onto an alien ocean world and start with only a lifepod.
- keep pushing deeper until the surface stops feeling reachable.
- get trapped in twisting underwater caves where there's no straight swim back up.
- scan wrecks and fragments to unlock new tools and vehicles, turning scavenging into a tech tree you build yourself.
- leave a crashed spaceship because you lack the tools, then return later with new gear to open more of it up.
- build modular underwater bases that store vehicles, generate power, and start leaking if the pressure gets too high.
3DAVE THE DIVER - DAVE THE DIVER is a casual, singleplayer adventure RPG featuring deep-sea exploration and fishing during the day and sushi restaurant management at night. Join Dave and his quirky friends as they seek to uncover the secrets of the mysterious Blue Hole.
Jun 28, 2023
In this game, you can…
- harpoon fish all day, then run a sushi restaurant at night by setting the menu, managing staff, and serving customers for upgrade money.
- hunt Godzilla in a crossover event during your dives.
- care for a Tamagotchi-like fish on your in-game phone by feeding it, cleaning up poop, training it, and putting it to sleep.
- dive into a shifting underwater sinkhole where each trip turns up new fish, loot, and surprises.
- go from peaceful exploration to fighting sharks and a megalodon when something huge shows up in the dark.
- watch customers taste your special dishes and launch into over-the-top Food Wars-style reaction cutscenes.
- unlock a whole farm loop where you grow crops, raise and name chickens for eggs, and feed it all back into your restaurant recipes.
- keep unlocking side activities like seahorse racing, card collecting, photography, gambling, rhythm sequences, and brawling missions as the story escalates.
4Subnautica 2 - 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.
May 14, 2026
In this game, you can…
- scan creatures to inherit their abilities and passives.
- fly by using an air bladder once you're deeper than 100 meters.
- head out into the void right away and scan a void leviathan as your first reckless expedition.
- dash to reposition fast, then chain it into exploration routes.
- build a base with rooms and walls that scale dynamically, including custom window strips that cost as little as 0.25 glass.
- use your fabricator to pull items straight from any lockers across the base, so crafting never needs manual hauling.
- track blackbox distress signals, follow terminals, and turn the log hunt into a cross-map exploration loop.
- descend to roughly 400–600 meters and hit darker deep-sea set pieces tied to story beats about death and loss.
5Subnautica: Below Zero - 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.
May 13, 2021
In this game, you can…
- swim straight through a gigantic fish creature that's basically a living tunnel.
- pick up and carry penguin babies around.
- use a spy penguin robot to slip into tight spaces and bring back resources.
- crash-land on an alien planet again and rebuild your entire survival setup from almost nothing.
- treat body heat like oxygen, warming up with hot drinks, gear, and heat plants to cross frozen regions.
- ride a modular truck-sub you can extend with extra rooms and haul a jukebox inside.
- play your own music in your base or while driving around in your vehicle.
- push deeper through crystal caves and layered underwater shafts to uncover alien tech and hidden artifacts.
- trigger bubbling purple vents that can explode if you get too close while you're exploring.
6Barotrauma - 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!
Mar 13, 2023
In this game, you can…
- detach a burning section of your submarine, then put the fire out and re-dock the module.
- befriend a diver in voice chat, steal his headset, cuff him, and leave him in the abyss while the sub can't hear him scream.
- load an explosive railgun shot that tears your own hull open and forces emergency rerouting to drain flooded compartments.
- get blasted across a two-story outpost when three monsters burst from a vent.
- go outside to repair hull damage, get ambushed in the airlock, and fight the intruder off with only a wrench and screwdriver.
- weld an airlock shut to contain an infection while people on the other side scream, then limp the ship back with two survivors.
- keep a dog-sized pet mantis shrimp in a ballast tank, and have it follow you out into the abyss when the sub breaks apart.
7SOMA - From the creators of Amnesia: The Dark Descent comes SOMA, a sci-fi horror game set below the waves of the Atlantic ocean. Struggle to survive a hostile world that will make you question your very existence.
Sep 21, 2015
In this game, you can…
- wake up after a brain scan in Toronto and realize you're now in a corroded underwater facility, with your old life possibly copied over.
- face an enemy you can't look at directly without dying, turning your own sight into a hazard.
- reach an ending that forces you to live with the consequences of what it means to copy a mind and leave another self behind.
- descend deeper and deeper through ocean-floor stations, each new area pushing you farther below the surface.
- meet talking robots and mechanized humans who insist they're people, even as everything around them falls apart.
- solve puzzles by physically grabbing objects, throwing them, pulling levers, twisting wheels, and opening heavy doors by hand.
- sneak past monsters with no weapons at all, using hiding, timing, and thrown objects as distractions.
- cycle through airlocks and watch the sea level rise around you as the station pressurizes, sealing you in.
- walk near deep-sea sites where huge angler fish lurk close by, adding a sudden, specific underwater threat.
8BioShock™ - BioShock is a shooter unlike any you've ever played, loaded with weapons and tactics never seen. You'll have a complete arsenal at your disposal from simple revolvers to grenade launchers and chemical throwers, but you'll also be forced to genetically modify your DNA to create an even more deadly weapon: you.
Aug 21, 2007
In this game, you can…
- survive a plane crash, find a lighthouse, pull a lever, and descend into a glowing art-deco city built under the ocean.
- hypnotize one Big Daddy to fight another, then wade in while they tear each other apart.
- kill a Big Daddy, then choose whether to harvest or rescue the Little Sister it was protecting.
- shoot electricity into a puddle and fry everyone standing in it.
- freeze an attacker solid, then smash them to pieces with a wrench.
- hack a turret or security camera, then let it turn on enemies instead of you.
- hack vending machines and first-aid stations to cut prices and change what they do.
- piece together a whole city's collapse by finding scattered audio diaries and following the clues they leave behind.
9ABZU - From the art director of Journey®, ABZÛ is a beautiful underwater adventure that evokes the dream of diving. Immerse yourself in a vibrant hidden world bursting with color and life as you descend into the heart of the ocean. But beware as you swim deeper as dangers lurk in the depths.
Aug 2, 2016
In this game, you can…
- ride a blue whale, steer it, and breach the surface on its back.
- sit on meditation statues to jump into a fish's view and watch the reef as that species.
- swim through schools of thousands of fish that split, swirl, and react to predators around you.
- find hidden pink pools and release trapped fish that spill out and repopulate the area.
- get grabbed by strong currents that rocket you through canyons and funnel you into enormous underwater ruins.
- hold onto fast fish and weave through ocean canyons with them like a moving, guided procession.
- explore deep trenches and ominous ruins where the vibe shifts darker, but you still can't die.
- hit the finale and suddenly gain extra speed and a stronger burst that lets you rocket through the water.
10Another Crab's Treasure - In a vibrant undersea kingdom on the verge of collapse, a hermit crab embarks on a treasure hunt to buy back his repossessed shell. The second game from AGGRO CRAB.
Apr 25, 2024
In this game, you can…
- swap between dozens of trash shells mid-fight, using stuff like bottle caps or rubber ducks as your armor and abilities.
- start as a hermit crab whose shell gets repossessed for unpaid taxes, then hunt treasure to buy your home back.
- fight bosses that wield junk as weapons, like a lobster that snaps a bike lock on you like a guillotine.
- pull enemies to you or slingshot yourself into them with a grappling hook that also opens up early platforming routes.
- learn sea-creature powers, then chain mantis-shrimp punches into bobbit-worm grabs to keep fights escalating.
- tune accessibility sliders to slow time, change damage, boost shell durability, disable fall damage, and keep your money on death.
- give your crab a gun.
- find fully missable secret areas with their own bosses and rewards, then return later with new abilities to open more paths.
