- #1 Feed and Grow: Fish
97% matchMostly Positive78% of 21,631 reviews2016
Dev: Old B1oodPub: Greens s.r.o.
Windows
Median: 5.3 hrsMean: 15.5 hrs≥1hr: 81%
Hunt and eat other fish - simply, grow into larger beasts!
Why similar: Underwater 57% ★, Survival 18%, Multiplayer 10.6%, Simulation 9.5%, Action 2.6%
- #2 Subnautica 2
96% matchVery Positive91% of 126,113 reviews2026
Dev: Unknown Worlds Entertainment
Windows
Median: 10.5 hrsMean: 13.4 hrs≥1hr: 94%
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 57.8% ★, Survival 19.5%, Multiplayer 13%, Co-op 7.9%, Action 1.2%
- #3 Blue Epic
96% matchMixed53% of 15 reviews2023
Dev: Whitewater PacificPub: Whitewater Pacific
Windows
Blue Epic is an ocean survival game where players can play marine creatures to survive; Complete control system included in the game
Why similar: Underwater 53.4% ★, Survival 17.7%, PvP 12.4%, Online Co-Op 8%, Multiplayer 7.2%
- #4 Death in the Water
95% matchMostly Positive72% of 307 reviews2019
Dev: Lighthouse Games Studio
Windows · Mac
Median: 24 minMean: 2.5 hrs≥1hr: 20%
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 65.7% ★, Survival 13.5%, Multiplayer 9%, Simulation 7.7%, Action 3.8%
- #5 Polluted Flesh
94% 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 81.3% ★, Survival 13.1%, Action 4.7%, Singleplayer 1%
- #6 Scylla's Depths
93% 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 69.9% ★, Survival 13%, Simulation 10.2%, Action 5.9%, Singleplayer 1%
- #7 Away From Life
91% matchMixed67% of 229 reviews2026
Dev: Cursor GamesPub: IZilla Games
Windows
You survived a helicopter crash; going home is your top priority. Live as a castaway - survive the dangers of the islands by using your environment to find food, build shelter, craft tools to extend your stay, explore the secrets of the islands and their surrounding waters, and carve your way home.
Why similar: Underwater 44.6% ★, Survival 15.7%, PvP 12.6%, Multiplayer 7.7%, Simulation 5.7%
- #8 The Fish
92% match6 user reviews100% of 6 reviews2022
Dev: Nevsram
Windows
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 82.8% ★, Simulation 16.2%, Singleplayer 1%
- #9 Beyond Blue
91% 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 90.4% ★, Simulation 9%, Singleplayer 0.6%
- #10 Deep Diving Adventures 2
90% matchNo user reviews
Dev: Salient GamesPub: Ultimate Games S.A.
Windows
Dive deeper than ever before! Search for Atlantis across 8 unique global locations. Manage your oxygen, breach the surface to plan your next move, and use dynamite or underwater robots to carve your path. Discover over 50 marine species in this immersive diving adventure.
Why similar: Underwater 81.9% ★, Simulation 9.9%, Survival 7.7%, Singleplayer 0.5%
- #11 CHOMP CHOMP Carnage
89% matchNo user reviews2026
Dev: Llamaplay
Windows
Eat everything. Grow big. The ocean's never looked this cozy and deadly at the same time. A fish-eat-fish arcade chomper where every creature is crafted from wool. Devour your way up the food chain in CHOMP CHOMP Carnage.
Why similar: Underwater 60% ★, Survival 32.6%, Action 6.5%, Singleplayer 0.9%
- #12 AquaNox
89% matchMostly Positive72% of 397 reviews2010
Dev: Massive DevelopmentPub: THQ Nordic
Windows
Median: 24 minMean: 3.1 hrs≥1hr: 32%
The water is no longer calm. The undersea world has undergone a transformation from tranquil environment to a place of unspeakable violence, graphic murder and horrific danger.
Why similar: Underwater 85% ★, Action 9.8%, Simulation 4.1%, Singleplayer 1.1%
- #13 Underwater Life
88% matchMixed58% of 24 reviews2021
Dev: Stas Paty9mkinPub: Piece Of Voxel
Windows
Underwater Life is an indie simulator game made in 2D graphics with pleasant musical accompaniment.
Why similar: Underwater 53.3% ★, Survival 16.2%, PvP 10.7%, Multiplayer 10.5%, Simulation 8.6%
- #14 Deep Blue: Devour and Evolve
86% matchVery Positive84% of 100 reviews2025
Dev: ZHOUZEMING
Windows
Play as different fish, devour opponents in the ruthless underwater world of survival of the fittest, and evolve your abilities.
Why similar: Underwater 63% ★, Survival 19.3%, PvP 6.1%, Roguelite 5.7%, Action 4.5%
- #15 Depth
87% matchVery Positive88% of 32,951 reviews2014
Dev: Ammobox Studios
Windows
Median: 4.5 hrsMean: 36.2 hrs≥1hr: 88%
Play as a shark or a diver in a dark aquatic world and overcome your enemies by employing cunning, teamwork, and stealth. Depth blends tension and visceral action as you team up against AI or be matched with other players in heart pounding combat.
Why similar: Underwater 48.8% ★, Survival 15%, PvP 12.7%, Multiplayer 10.4%, Co-op 7.2%
- #16 Eat Fish, Get Achievements
86% matchPositive94% of 35 reviews2022
Dev: DaSticks
Windows
Eat Fish, Get Achievements is a relaxing arcade-style game where you eat fish and unlock new playable characters. The game involves moving around a 2d environment and eating smaller fish than yourself. Some fish have abilities and some change the rules of the game. Get achievements and high scores!
Why similar: Underwater 78.9% ★, Survival 20.7%, Singleplayer 0.4%
- #17 AquaNox 2: Revelation
85% matchMostly Positive76% of 277 reviews2010
Dev: Massive DevelopmentPub: THQ Nordic
Windows
Median: 30 minMean: 4.8 hrs≥1hr: 38%
AQUANOX 2: REVELATION is a new story of the underwater world Aqua. In 2666 a young freighter pilot called William Drake sets out to search for the heritage of a mythical ancestor. He is looking for adventure - and finds greed, ruthlessness, merciless hatred … and also unexpected help.
Why similar: Underwater 85.1% ★, Action 8.7%, Simulation 5.2%, Singleplayer 1.1%
- #18 Abyss Diver
84% matchNo user reviews
Dev: JMT Games
Windows
Explore the abandoned city deep beneath the ocean. Gather resources before your oxygen runs out, and cooperate with your teammates amidst the threat of monstrous creatures. A cooperative underwater survival action game where a single decision can mean life or death.
Why similar: Underwater 65.8% ★, Online Co-Op 12.3%, Multiplayer 9.3%, Simulation 8.4%, Action 4.3%
- #19 Titanic VR
84% matchVery Positive83% of 302 reviews2018
Dev: Immersive VR Education Ltd
Windows
Median: 48 minMean: 1.3 hrs≥1hr: 46%
Witness the sinking of RMS Titanic. Explore the shipwreck. Titanic VR is a diving simulator and immersive interactive story. With over 6 hours of game-play Titanic VR you will leave with a greater understanding of the historic tragedy that unfolded in 1912.
Why similar: Underwater 63.9% ★, Simulation 25.7%, Action 10.4%
- #20 Anchor
82% matchNo user reviews2027
Dev: Fearem
Windows
Anchor is a large-scale underwater multiplayer survival game. Build your base, craft tools and weapons, explore, loot and prepare for battle. Every player is a potential threat in a persistent world where bases can be raided, alliances broken, and the ocean itself hunts you.
Why similar: Underwater 50.6% ★, Survival 15.9%, PvP 12.7%, Multiplayer 10.4%, Online Co-Op 6.9%
- #21 Ladybugs and Storm
83% matchNo user reviews2022
Dev: TITANIUM ARMOR
Windows
Ladybugs and storm is open world exploration simulation, it is about ladybugs survival through the storm, the mission is explore the towers on tiny islands for some food, so the ladybugs will survive through the storm
Why similar: Underwater 67.9% ★, Survival 22.9%, Simulation 8.2%, Singleplayer 1%
- #22 Tasty Blue
82% matchVery Positive89% of 738 reviews2015
Dev: Dingo Games
Windows · Mac
Median: 4.0 hrsMean: 6.0 hrs≥1hr: 88%
Tasty Blue is an underwater side-scrolling eat 'em up game. You start as a small goldfish with an insatiable appetite. After being overfed by your owner, you'll escape into the ocean and eat everything that you encounter. The more you eat, the bigger you get!
Why similar: Underwater 65.7% ★, Survival 16.6%, Multiplayer 11.9%, Action 4.6%, Singleplayer 1.1%
- #23 Ceto-7
81% matchNo user reviews2026
Dev: M.A.D Lad Games
Windows
Ceto-7 is a single-player underwater survival horror. Play as a salvage diver navigating a flooded alien mining facility, hunted by an apex predator, and hired to destroy sensitive corporate data. The deeper you go, the harder it becomes to ignore what you've been hired to bury.
Why similar: Underwater 80.8% ★, Survival 14.3%, Action 4.5%, Singleplayer 0.4%
- #24 Diving Focus
80% match1 user reviews100% of 1 reviews2025
Dev: SUDT Games
Windows
“Diving Focus” is a scuba diving simulator in which you have to explore the underwater world by diving into the water and looking for objects that will help you in the further progression of the game!
Why similar: Underwater 59.1% ★, Survival 17.7%, Co-op 10.8%, Simulation 7.5%, Multiplayer 4.5%
- #25 Echoes of Eta
79% matchNo user reviews
Dev: Cheshirecrow
Windows
Echoes of Eta is an underwater PVE survival game with RPG elements. Scavenge natural resources to customise your mobile base ship, build portable tools and robotic companions. Explore the abyss and uncover the truth behind humanity's collapse.
Why similar: Underwater 71.8% ★, Survival 28.2%
- #26 Diluvion: Resubmerged
81% matchMixed62% of 1,129 reviews2017
Dev: Arachnid GamesPub: Good Shepherd Entertainment
Windows · Mac · Linux
Median: 5.2 hrsMean: 6.5 hrs≥1hr: 86%
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 93.4% ★, Action 6.2%, Singleplayer 0.4%
- #27 SharkKing
79% match5 user reviews100% of 5 reviews2023
Dev: RoguePixel
Windows
SharkKing is an aquatic eat em up.
Why similar: Underwater 90.6% ★, Action 8.1%, Singleplayer 1.3%
- #28 Gospel of Steel
78% 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 99.3% ★, Singleplayer 0.7%
- #29 Barotrauma
77% matchVery Positive94% of 89,315 reviews2023
Dev: FakeFishPub: Daedalic Entertainment
Windows · Mac · Linux
Median: 9.0 hrsMean: 56.1 hrs≥1hr: 91%
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: Underwater 46.6% ★, Survival 19.9%, Multiplayer 13.9%, Co-op 11.3%, Simulation 6%
- #30 Offcoast
78% 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 99.4% ★, Singleplayer 0.6%
- #31 Sea Warden
76% matchNo user reviews
Dev: Alcedo Games
Windows
Sea Warden is a co-op survival adventure set on the back of Ao, a giant sea turtle journeying across a shattered world. Build, craft, explore, and defend your living base as you travel between forgotten islands in search of lost knowledge and stranded souls.
Why similar: Underwater 44.5% ★, Survival 26.8%, Multiplayer 15.9%, Online Co-Op 11%, Action 1.9%
- #32 Leviathan
75% matchNo user reviews2026
Dev: Novaware Studios
Windows
Leviathan is a multiplayer ocean survival game where you play as a fish, hunt smaller creatures, and evolve unique abilities to dominate a living ecosystem of players and AI!
Why similar: Underwater 57.6% ★, PvP 20%, Action Roguelike 10.4%, Multiplayer 8.5%, Action 3.4%
- #33 DeepBubbles
74% 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 91.1% ★, Simulation 7.1%, Singleplayer 1.8%
- #34 Primal Blue
75% matchNo user reviews
Dev: Mythroot Interactive
Windows
Survive and thrive as a sea creature in a vast online ocean. Hunt, evolve, and adapt in a dynamic underwater world filled with danger, mystery, and other players. Will you rise as an apex predator or vanish beneath the waves?
Why similar: Underwater 57.3% ★, Survival 16.2%, PvP 14.7%, Simulation 7.8%, Action 4%
- #35 Sipho
74% matchVery Positive84% of 361 reviews2023
Dev: All Parts Connected
Windows · Mac · Linux
Sipho is an action survival game with an intricate building system. Grow your own creature and take over the local ecosystem. Fight, grow, survive, dominate. Play in adventure or sandbox mode.
Why similar: Underwater 52.9% ★, Action Roguelike 13.6%, Survival 11.8%, Simulation 9.4%, Roguelite 6.2%
- #36 NEO AQUARIUM - The King of Crustaceans -
76% matchMostly Positive79% of 349 reviews2015
Dev: Calappa GamesPub: PLAYISM
Windows
Median: 3.2 hrsMean: 3.5 hrs≥1hr: 84%
YOU GET TO CONTROL UNIQUE CREATURES LIKE LOBSTERS, CRABS AND BARNACLES, IN A WILD WATER WORLD THAT EXCEEDS ALL HUMAN SENSE.
Why similar: Underwater 73.3% ★, Survival 9.4%, Multiplayer 8.3%, Action 8.3%, Singleplayer 0.7%
- #37 Robo Dolphin Escape
73% match4 user reviews100% of 6 reviews2026
Dev: NIIIIIIIICO
Windows · Mac · Linux
Break out of a top-secret military operation! To enter the portal that leads to your escape, you must thwart an army of fish-like machines and collect their power-ups.
Why similar: Underwater 81% ★, Action Roguelike 12.3%, Action 5.8%, Singleplayer 0.9%
- #38 Thalassophobia
73% matchNo user reviews2026
Dev: Varattu Valo Games
Windows
Thalassophobia is a 4-player co-op horror diving game set in the crushing darkness of the deep ocean. Complete high-risk objectives and uncover long-forgotten secrets. The further you descend, the less safe you are.
Why similar: Underwater 60.9% ★, Survival 15.2%, Multiplayer 12.4%, Online Co-Op 8.6%, Co-op 2.2%
- #39 Seaforge: Shores of Atlantis
73% matchNo user reviews2027
Dev: Glowbug Games
Windows
Beneath the waves, the world of Atlantis awaits. Build your home base on sunlit Mediterranean shores, then dive into sunken ruins to uncover secrets of the deep. Get stronger, dive deeper, and battle dark forces with up to 3 friends in this underwater survival crafting odyssey!
Why similar: Underwater 60.3% ★, Survival 19.9%, Co-op 9.2%, Multiplayer 5.3%, Online Co-Op 5%
- #40 Project Into the Void
72% matchNo user reviews
Dev: Fire Chariot Studios
Windows
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 80% ★, Simulation 19.4%, Singleplayer 0.6%
- #41 Deep Drift Signal Below
71% 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 88% ★, Survival 10.8%, Singleplayer 1.3%
- #42 La terrible vengeance de Pancho la crevette
70% matchPositive92% of 24 reviews2026
Dev: Cèdre
Windows
La terrible vengeance de Pancho la crevette est un jeu d'action en vue du dessus dans un monde subaquatique-western. Aidez Pancho la crevette à se venger de ses ennemis, échappez-leur et éliminez-les en leur tirant des bulles supersoniques grâce aux pouvoirs des crevettes pistolet.
Why similar: Underwater 90.2% ★, Action 8%, Singleplayer 1.8%
- #43 Nomnomia
71% matchNo user reviews2026
Dev: momofuku
Windows
Consume enemies to steal their abilities and survive by managing your HP. Fight for survival on the mysterious planet Nomnomia in this food-chain action shooter.
Why similar: Underwater 69.2% ★, Survival 23.1%, Action 7%, Singleplayer 0.7%
- #44 Wreck Below
71% matchNo user reviews
Dev: Tide Hermit
Windows
A 1-4 player co-op deep-sea horror game where crews dismantle wrecks inside a paranormal oceanic phenomenon. Complete research operations, survive hostile entities, and uncover the source in the depths.
Why similar: Underwater 75% ★, Online Co-Op 11.5%, Multiplayer 5.5%, Co-op 4.3%, Action 3.3%
- #45 Sunkenland
70% matchVery Positive80% of 23,803 reviews2023
Dev: Vector3 Studio
Windows
Median: 8.6 hrsMean: 20.0 hrs≥1hr: 88%
Get ready for a Waterworld-themed survival game with modular base building, sunken city scavenging, crafting, base defense, and invasions of NPC clans for resources and territory. Ready for the water apocalypse?
Why similar: Underwater 55.2% ★, Survival 21%, Multiplayer 11.6%, Co-op 10.3%, Action 1.8%
- #46 Project Castaway
69% matchMixed66% of 1,849 reviews2026
Dev: Mardonpol Inc.
Windows · Linux
Median: 2.2 hrsMean: 7.9 hrs≥1hr: 74%
Project Castaway is a survival crafting title set in the Pacific Ocean. Live the life of a stranded castaway, with only yourself - and the island's inhabitants - for company! Sail the ocean, hunt, explore unique islands and gather resources as you fight for survival.
Why similar: Underwater 47.4% ★, Survival 18.7%, Multiplayer 10.7%, Online Co-Op 9.9%, Co-op 9.5%
- #47 Somnium Tenebris
69% matchPositive100% of 16 reviews2024
Dev: LittleLeaf Games
Windows
Somnium Tenebris is a 5-player, investigative horror game set in a Lovecraftian world. Explore the depths of the ocean with your team as you uncover evidence in your efforts to identify the megalithic creature... and escape before it's too late.
Why similar: Underwater 65.4% ★, Multiplayer 11.6%, Online Co-Op 11.2%, Co-op 8.9%, Simulation 2.2%
- #48 Classroom Aquatic
69% matchNo user reviews
Dev: Sunken Places
Windows · Mac · Linux
The world’s first underwater stealth trivia game! Play as a foreign exchange diver student in a school for dolphins, cheating, sabotaging, and manipulating your way to the top of the class!
Why similar: Underwater 71.1% ★, Simulation 28.9%
- #49 Depth Hunter 2: Deep Dive
70% matchMostly Positive74% of 988 reviews2014
Dev: Biart Company LLC
Windows
Median: 4.8 hrsMean: 8.0 hrs≥1hr: 93%
Depth Hunter 2 is an underwater hunting game, allowing the complete experience of the spearfishing extreme sport!
Why similar: Underwater 77.4% ★, Simulation 13.6%, Action 4.4%, Multiplayer 4%, Singleplayer 0.6%
- #50 tuna hake's underwater
66% matchVery Positive98% of 102 reviews2025
Dev: osuika
Windows · Linux
you are a fish who does tricks
Why similar: Underwater 93.6% ★, Action 5.8%, Singleplayer 0.6%
- #51 Hadalis
67% matchNo user reviews
Dev: Goat Studios
Windows
Hadalis is a co-op deep sea survival game where every mistake can be fatal. Alone or with a crew, descend into the hadal zone while keeping your fragile submersible intact as pressure, creatures, and failing systems push you to the brink. Will you endure the abyss?
Why similar: Underwater 53% ★, Multiplayer 19.4%, Online Co-Op 13.5%, Co-op 11.9%, Action 2.2%
- #52 Pixel Game Maker Series Fish Tornado
68% match1 user reviews100% of 1 reviews2022
Dev: Gotcha Gotcha Games
Windows
A simple action game that all you need is your left stick! Turn your fish into a giant swarm and take down your enemies!
Why similar: Underwater 71.3% ★, Multiplayer 15.8%, PvP 6.8%, Action 6%, Singleplayer 0.2%
- #53 Diving Bear
67% 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 92.2% ★, Action 7.8%
- #54 ENDER OCEAN - Your mission: "Clean the Ocean"
67% matchMostly Positive75% of 15 reviews2022
Dev: Ender Ocean
Windows · Mac · Linux
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 80.5% ★, Simulation 18.8%, Singleplayer 0.7%
- #55 Mermaid Colony
67% matchMixed60% of 35 reviews2019
Dev: M. HankaPub: Liu Lidan
Windows
Mermaid Colony is an atmospheric survival strategy game. You're granted godlike powers to guide the mermaids in a battle between light and darkness.
Why similar: Underwater 69% ★, Survival 16.6%, Simulation 13.5%, Singleplayer 0.9%
- #56 BREATHE
68% matchMixed49% of 366 reviews2018
Dev: dotBunny
Windows · Mac
Median: 24 minMean: 5.7 hrs≥1hr: 34%
Descend beneath the waves and explore treasure-filled waters! Scour a mysterious island for secret treasure, and unearth long-hidden secrets.
Why similar: Survival 49%, Multiplayer 30.5%, Simulation 19.6%, Singleplayer 0.9%