60+ similar titles based on shared tags and player behavior. Themes include Underwater, Submarine, Singleplayer, Simulation.
Collect fish, grow your aquarium, earn money, and unlock decorations. Feed your fish, keep the tank clean, and enjoy calm 2D idle progression at your own pace.
Aquarium Designer
Aquarium Designer gives you an opportunity to create the aquarium of your dreams! Become a professional whose job is to design it, build it, and fill it with the various underwater wildlife! All types, all sizes - your creativity is your only limit!
ARTDINK GAME LOG: Aquanaut's Holiday
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.
Aquarium Designer gives you an opportunity to create the aquarium of your dreams! Become a professional whose job is to design it, build it, and fill it with the various underwater wildlife! All types, all sizes - your creativity is your only limit!
Why similar: Submarine 31% ★, Underwater 24.3% ★, Idler 11.5%, Relaxing 6.9%, Management 6.6%
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 35.8% ★, Underwater 28.3% ★, Idler 18.6%, Nature 7%, Relaxing 5.2%
A cozy idle aquarium game: collect, breed, and sell fish, shape your tank with decorations, grow your economy, and relax while your fish earn for you.
Why similar: Idler 20.4%, Submarine 16.6% ★, Underwater 13.6% ★, Simulation 10.9%, Management 7.5%
Create stunning virtual aquariums on your PC! Our advanced 3D engine brings your fish tank to life with breathtaking realism, featuring lifelike fish, plants, decorations, and more. Transform your monitor into a vibrant, living aquarium. Virtual aquascaping has never been easier!
Why similar: Submarine 28.6% ★, Underwater 28.4% ★, Idler 13.1%, Nature 7.8%, Relaxing 7.8%
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 44.3% ★, Underwater 37.5% ★, Simulation 7.6%, Management 7.4%, Colorful 2.7%
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 53.5% ★, Underwater 22.8% ★, Simulation 8.3%, Relaxing 7.8%, Nature 6.2%
Immerse yourself in the ultimate relaxing aquarium experience. Watch fish glide gracefully through a serene, ever-changing tank—no setup, no stress, just pure tranquility. Enjoy soothing visuals and ambient ASMR sounds as your aquarium comes to life effortlessly. Your peaceful escape awaits!
Why similar: Underwater 31.8% ★, Submarine 17.6% ★, Idler 16.1%, Relaxing 8.7%, Nature 8.4%
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 57% ★, Underwater 35.2% ★, Simulation 7%, Singleplayer 0.7%
Discover a myriad of exotic species in this relaxing aquarium manager. Balance your resources and care for your fish to build the ultimate habitat.
Why similar: Underwater 29.4% ★, Idler 19%, Management 9.7%, Nature 8.6%, Relaxing 7.6%
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 50.4% ★, Underwater 38.2% ★, Simulation 6.9%, Resource Management 3%, Singleplayer 0.8%
Explore the island of Maupiroa and discover its deep-sea secrets!
Why similar: Submarine 35.9% ★, Underwater 24.3% ★, Nature 8.7%, Relaxing 8.6%, Simulation 5.6%
Become a fearless underwater explorer and reach the bottom of The Mariana Trench to win 20,000* REAL DOLLARS!
Why similar: Submarine 44.2% ★, Underwater 32.3% ★, Idler 16.5%, Simulation 5.8%, Indie 0.7%
"Fishful Days" is a casual idle game. you can buy fish fry and let them grow in the background; once they reach adulthood, they will continuously produce fish for you! You can also buy multiple fish tanks to achieve snowballing growth. It also offers rich fish tank customization features.
Why similar: Underwater 30% ★, Idler 24.3%, Relaxing 9.8%, Simulation 7.5%, Nature 5.9%
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 45.5% ★, Underwater 30.4% ★, Nature 8.5%, Relaxing 7.3%, Colorful 3.2%
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 53.2% ★, Underwater 33.7% ★, Simulation 8.1%, Colorful 4.6%, Singleplayer 0.3%
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 35.8% ★, Underwater 25% ★, Idler 16.2%, Nature 7.2%, Relaxing 5.8%
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 39.5% ★, Underwater 35.9% ★, Relaxing 8.8%, Nature 7.9%, Inventory Management 4.1%
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 42.9% ★, Submarine 36.8% ★, Simulation 11.9%, Nature 7.3%, Singleplayer 1%
Together for the Planet! Evade and outsmart the many dangers of the oceans, collect the Pearls to save the World. Stay on your toes through 100 handcrafted levels and challenge yourself to climb the leaderboard and prevent the war to begin.
Why similar: Underwater 33.4% ★, Submarine 33.4% ★, Nature 10.1%, Family Friendly 7.6%, Colorful 5.3%
Dive into a sunny beach in this cozy hidden object game! Rotate the endless scene, watch funny elves go about their day, and find over 130 hidden objects to the soothing beats of a lo-fi soundtrack. The perfect way to unwind and relax!
Why similar: Submarine 28.3% ★, Idler 25.1%, Underwater 21.8% ★, Relaxing 6.9%, Cute 4.4%
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.
Why similar: Submarine 56.4% ★, Underwater 37.4% ★, 2D 4.5%, Indie 1%, Singleplayer 0.7%
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 52.1% ★, Underwater 40.7% ★, Simulation 6%, Indie 0.9%, 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 49.3% ★, Underwater 27.9% ★, Relaxing 9.2%, Nature 5.8%, 2D 2.6%
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 45.7% ★, Underwater 35.4% ★, Nature 12.4%, Simulation 6.1%, Singleplayer 0.4%
A cozy incremental game where you play as a Kraken wielding abyssal powers to clean the ocean.
Why similar: Underwater 30.8% ★, Idler 25.1%, Relaxing 10.7%, Management 9.6%, Cute 6.4%
A relaxing idle-aquarium garden simulator that sits at the bottom of your screen while you do other things.
Why similar: Underwater 31.5% ★, Idler 20%, Decorating 15% ★, Nature 10.5%, Relaxing 7.1%
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 47.8% ★, Underwater 36.3% ★, Management 8.1%, Simulation 4.4%, Resource Management 2.7%
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 43.1% ★, Underwater 34% ★, Nature 9.7%, Relaxing 6.9%, Simulation 3.2%
7821 Akuji is a first person liminal horror experience. Pilot a tiny, jury-rigged submersible to rescue a lost science crew.
Why similar: Submarine 55% ★, Underwater 36.8% ★, Simulation 6.8%, Indie 0.9%, Singleplayer 0.4%
A relaxing desktop aquarium that lives with you: grow, breed, and watch a peaceful ecosystem evolve in real time.
Why similar: Submarine 25.5% ★, Idler 22.3%, Underwater 17% ★, Simulation 9.1%, Management 7.2%
"Under the Blue Horizon" is an idle simulation game. Play while performing other tasks on your computer! Place your own aquarium anywhere on your screen, coexisting with your work, games, and more!
Why similar: Idler 35.8%, Underwater 29.4% ★, Relaxing 14.3%, Simulation 8.7%, Casual 4.2%
A mysterious lifeform, ALife, survives by consuming ores. Watch their lives unfold—slow-paced and endearing. You cannot control or upgrade ALife. All you can do is observe and watch over them. Witness generations of ALife as they live their lives. Relax in a laid-back world with soothing BGM.
Why similar: Idler 30.1%, Relaxing 16.3%, Simulation 15.3%, Nature 8%, Cute 7.3%
FULL METAL COFFIN is a 3D co-op submarine simulator. Crew your vessel with up to 4 players. Load the torpedoes, dodge incoming fire, and eliminate the enemy.
Why similar: Submarine 48.8% ★, Underwater 31.7% ★, Management 9.5%, Simulation 7.9%, Stylized 2.1%
"Under the blue horizon - Aquarium" is a game for those who want to enjoy watching fish. Observe fish in the sea and in aquariums. Discover more types of special fish. Enjoy it while working, relax, or clear your mind.
Why similar: Underwater 52.6% ★, Idler 26.1%, Relaxing 11.4%, Cute 3.8%, Casual 3.6%
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 53.1% ★, Underwater 36.3% ★, Management 9.3%, Singleplayer 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 51.9% ★, Underwater 39.6% ★, Relaxing 5.1%, 2D 2%, Indie 1.3%
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 46.9% ★, Underwater 34.5% ★, Simulation 6.6%, Nature 3.5%, Colorful 3.4%
Explore the ice-encrusted ocean of Jupiter's moon Europa.
Why similar: Submarine 51.8% ★, Underwater 36.5% ★, Nature 9.5%, Casual 1.7%, Indie 0.2%
My Joyful Aquarium is a relaxing game where you build your dream fish tank. Take good care of your fish’s comfort, upgrade their environment, and explore thousands of breeding possibilities. With offline progression, your aquatic world thrives even when you’re away! Ready to dive in?
Why similar: Underwater 42% ★, Management 10.4%, Nature 9.7%, Simulation 8.2%, Idler 8.1%
A sinister entity lurks in the depths. Descend into the abyss and extract knowledge about it.
Why similar: Submarine 62.3% ★, Underwater 36.8% ★, Singleplayer 0.9%
Experience the ocean through a child's eyes to confront the legendary Kraken in this amazing hand-drawn adventure.
Why similar: Underwater 37.4% ★, Idler 20.5%, Relaxing 15.3%, Colorful 7%, Family Friendly 6%
Create a vibrant, personal fish pond right on your desktop! Easily raise idle fish, collect cute species, and customize your digital space. Earn continuous rewards even while offline, decorate freely with simple taps and soothing sounds, build your serene desktop oasis effortlessly.
Why similar: Underwater 33.4% ★, Idler 29.4%, Simulation 12%, Relaxing 11.7%, Casual 4.8%
Underwater, a new threat slowly emerges. Playing as a helpless hermit crab, use your shells to defeat countless waves of monsters and giant sea creatures in this action packed 2d game.
Why similar: Submarine 36.4% ★, Underwater 34.2% ★, Nature 8.9%, Family Friendly 7%, Cute 5%
Outfit, crew and command your submarine to save what's left of humanity beneath the seas of a ruined earth. Man your sub's systems and take aim in this real-time strategy epic! Inspired by FTL, this subnautic student project serves as our first 2-semester release.
Why similar: Submarine 44.6% ★, Underwater 33.6% ★, Inventory Management 8.2%, Simulation 6.9%, 2D 3.4%
As an inexperienced oceanographer, you must build your skills, reputation, crew, and resources along your journey to mount an expedition to find the lost Titanic. Experience the challenges, dangers and excitement of scientific underwater exploration!
Why similar: Submarine 45.3% ★, Underwater 34% ★, Management 10.7%, Resource Management 4.1%, Simulation 3.6%
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 55.4% ★, Underwater 37.1% ★, Simulation 6%, Casual 1.1%, Singleplayer 0.5%
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 41.4% ★, Underwater 34.4% ★, Relaxing 9%, Nature 8.1%, Simulation 6.2%
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 53.1% ★, Underwater 45.2% ★, 2D 0.9%, Indie 0.8%
Explore raising your very own Sacabambaspis in the casual fish tank idler. Save coins and feed fish various foods, sparking a various set of reactions. Name your Sacabambaspis and watch them grow before your eyes.
Why similar: Underwater 47.2% ★, Idler 36.9%, Casual 6.9%, 2D 5.6%, Indie 1.8%
Pupple Pop is an incremental game where you pop bubbles to earn money. Buy bigger and better bubbles, unlock upgrades and hire fish helpers to automate the process and take care of all the busy popping work for you. Simple. Satisfying.
Why similar: Underwater 33.3% ★, Idler 27.4%, Management 14%, Relaxing 7.9%, Resource Management 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 55.3% ★, Underwater 38.8% ★, Simulation 5.4%, Singleplayer 0.4%, Indie 0.2%
An underwater running game, where Polly & friends cleanup plastic and debris to make their home a more habitable place. Matchala Games is donating 25% of all proceeds to help clean up our oceans. Powered by compelling graphics, cute characters, accessories and a unique 9 lane running system
Why similar: Submarine 46.2% ★, Underwater 33.1% ★, Cute 6.2%, Nature 3.9%, Family Friendly 3.3%
ULTRAQUARIUM is a casual aquarium sim that lets you create your own fish and decorations. Purchase fish, satisfy their needs and they shall repay you in kind. Want two Gregs? You can't have two Gregs.
Why similar: Underwater 32.1% ★, Idler 31%, Simulation 16.7%, Casual 6.6%, Colorful 6.1%
KAI is a game of Exploration and Adventure between the sidereal space and underwater depths. Skillfully lure and guide groups of fish to solve puzzles, access new areas and uncover the truth behind the mission entrusted to you, Akira, and the other crew members aboard the ship.
Why similar: Submarine 40% ★, Underwater 31.9% ★, Idler 14.3%, Relaxing 9.1%, Colorful 4.7%
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 54% ★, Submarine 42% ★, Indie 2.1%, Singleplayer 1.8%
An underwater survival horror game where the Earth is covered in water
Why similar: Submarine 55.9% ★, Underwater 42.6% ★, Indie 0.8%, Singleplayer 0.7%
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 53.5% ★, Underwater 36.3% ★, Simulation 5.4%, Resource Management 3.6%, Singleplayer 1.2%
Build a small town of seedlets, mysterious seed like creatures in this cozy city builder. Build facilities, put up decorations, and help the seedlets thrive!
Why similar: Idler 25.7%, Decorating 16.6% ★, Management 12.9%, Nature 12%, Relaxing 8.5%
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 49.1% ★, Underwater 34.4% ★, Relaxing 8.5%, Colorful 3.6%, Cute 2.9%
