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Flounder
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The top results based on the latest update are Loopquarium [Score: 1.3], Fish 'n Ships [Score: 1.0] and MUTARIUM: Mutant Aquarium Defense [Score: 1.0] The top rated games you can find here are Chillquarium [SteamPeek Rating: 8.0] ranked #11, Joyquarium [SteamPeek Rating: 5.8] ranked #18 and Idle Waters [SteamPeek Rating: 5.5] ranked #6 Also don't forget to check the newest releasesCatCha [Release date: 2026-09-03] ranked #21, A Good Day Fishing [Release date: 2026-08-04] ranked #15 and FISH KISSER [Release date: 2026-07-20] ranked #26 While it is tempting to play with the newest and the best, there might be some other gems in the results, like Joyquarium [SteamPeek Rating: 5.8] ranked #18, Zen Aquarium [SteamPeek Rating: 5.4] ranked #24 and Bugaboo Pocket [SteamPeek Rating: 5.1] ranked #35.
The Ocean Ecosystem Roguelite. Grow a colorful school of fish with unique abilities and unlock powerful items to help them repel boss invasions. Collect rare fish to complete your peaceful Virtual Tank. Hold the line and surface victorious! The depth is deceiving.
Loopquarium is an aquarium roguelite where you assemble a school of fish with unique abilities to repel invading apex predators. Start with a group of guppies, grow your population, and balance predator and prey to discover insane combos every run.
Take to the seas on your little boat and catch some fish in this 2D cozy fishing experience! Explore the drizzly coastline, upgrade your boat, and bring home the big one! How many fish can you catch?
Feed them and they mutate. Overfeed them and they turn on you. Mix MEAT, GLOW and ORE to grow your fish into adorable little horrors, then let them fight the failed experiments breaking into your tank. You never control a unit — what you feed is the whole strategy.
Cast into peaceful waters, guide your lure beneath the surface, and reel in fish of every size in FishyFox! Experiment with different bait and equipment, discover new species, chase trophy catches, and fill your personal aquarium in this cozy fishing adventure.
A relaxing idle fishing game that waits for you at the bottom of your screen. CATCH fish, BUY upgrades, COMPLETE your collection, and DISPLAY them in your aquarium.
Rumbly is a Fast-Paced Roguelike. Outspeed and outplay enemies by hitting directional inputs to dodge attacks. Master enemy patterns, unlock powerful upgrades, and chain combos in battles where every second counts. Precision is power in this speed tactical brawler!
Fishing Tale is a relaxing fishing adventure game where you catch over 40 unique fish across diverse environments like oceans, lakes, and rivers. Customize your character, track your catches in a detailed journal, and enjoy the soothing sounds of nature.
Fishing Mega-Game takes the joy of a fishing mini-game and crafts it into a larger creature collecting experience. Roam the land for new fishing spots and deploy your favorite fish in search for new playable fish!
Chillquarium is a cozy and relaxing idle game. Buy fish and raise them in real time, then sell them to turn a profit! Customize your aquarium as you progress from a simple starter tank to your dream setup by filling your collection with rare exotic fish and ultra-rare color variants!
Buy sharks, raise them, and sell them for profit, or take control of any shark to hunt fish yourself. Collect 150+ real-world species from dwarf lanternsharks to great whites. Spot rare albinos.
Aquarium Days is a cozy fish-collecting game with 60 adorable species, 117 appearances, and 18 aquarium scenes. Keep your aquarium in a small window on your desktop, or set it as an animated wallpaper.
Kalasta is a roguelite deckbuilder fish game with real time strategy mechanics. Play cards to spawn fish, feed them and defend your fish from waves of monsters!
A Good Day Fishing is a gamified focus tool where you catch fish while completing real-life tasks. Reel in and record new species, decorate your favorite cozy fishing spot, and customize your soundscape to create a custom vibe to help you relax and boost concentration.
Fish Companions is a relaxing idle game that brings colorful life to your desktop. Adopt your own digital fish to keep you company. Raise your companions, unlock aquariums, explore new oceans filled with more fish, and collect them all! Hang out with your friends to enjoy even more companionship!
Explore, collect, and build your very own cozy museum! In One Coin Museum, travel across the seas and use your claw to grab hidden treasures. Display your finds to attract visitors, grow your reputation, and upgrade your boat to reach even more distant wonders.
Joyquarium is a relaxing casual fish-raising game. Buy various cute fry and sell them at a high price after they grow up. With the money you earn, you can purchase aquatic plants, driftwood, scenery stone, etc. to decorate your tank (you can freely adjust the color, size, and position).
A cozy idle aquarium that lives on top of your screen. Watch fish swim, grow, and interact while you work or relax. Desktank turns your desktop into a peaceful underwater world — float it in the corner or let it take over the whole screen. Just sit back and enjoy the calm.
A cozy pixel-art aquarium game about collecting tiny critters, caring for them, trading extras, and decorating living glass tanks. Raise hearts, keep water steady, and use View Mode to safely watch your tanks while critters and decorations keep gently moving. *Not an idle coin game.
Discover CatCha a Roguelike and Cozy game. Play the strategic Dice Builder Roguelike, earn currencies to unlock more cats and furniture. Decorate multiple rooms in the Cat-Castle.
Buy fish as eggs, raise them in real time, and sell them for profit. Breed your favorites, build a tank that earns through decorations, and complete a collection of 250 species.
An aquarium sim you can keep anywhere on your screen while you do other things. Buy endless upgrades, apply trait modifiers, and complete your collection of rare, epic and legendary fish! Buy today or give a gift to someone!
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!
A pixel-art roguelike fusing fishing and deck-building. Build a powerful pond and earn gold through a 'buy, catch, sell' cycle. You must balance card strategy and economics to pay rising rent and survive this unique adventure.
FISH KISSER is a roguelike where you explore the bottom of the ocean, fulfilling your greatest fantasy: catching and kissing fish! Buy cards, earn points, and mildly disturb everyone on the island.
A relaxing fishing adventure where the fish have floated into space. Explore Aquaria, rescue floating sea life with your gravity rod, and restore the planet’s lost ecosystem.
In this casual idle simulator, you take care of charming pixel-art fish, collect coins to buy decorations that provide uniques bonusses, and create your dream Pixel Aquarium!
Wildseed is a relaxing game where you grow plants and build your garden into a haven for cute animals. Keep your animals happy and your plants healthy, find rare variants, and discover the ancient secrets your garden holds - one seed at a time.
A relaxing idle swimming game where you catch fish, unlock new locations and characters, customize your swimmer, and enhance your abilities with helpful pets and power-ups.
Drop Loot is a loot-matching, synergy-chaining, monster-exploding… roguelite dungeon crawler. Match tiles to deal damage and heal, stack powers to create chain reactions, descend to the heart of the well and paint it all red.
Fish will come, fish will go. Take photos, collect beans, decorate your seascape, then relax or do other things while your friends swim by in this calming side-idler.
Make some lemonade and set sail in this cozy fishing incremental game. Catch weird fish across colorful locations, upgrade your gear, rebuild Starlight Cove back to its former glory, and defeat the evil shark that stole your grandfather's greatest treasure years ago.
A relaxing, semi-idle pet game starring bugs from land, air and sea! Play as a research scientist living in a cabin with just your bugs and a penpal for company. Spoil them with pets, minigames, food and furniture. Raise and release bugs to help Beetleback Ridge recover from a devastating fire.
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