
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.
60+ similar titles based on shared tags and player behavior. Themes include Creature Collector, Casual, Idler, Relaxing.

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.

Mothiary
An idle game about collecting moths.

Tiny Egg Clicker
An idle pet-collecting clicker game that keeps you company at the bottom of your screen. Click your egg to help it hatch. Grow your collection of pets to unlock upgrades and rarer eggs. Relax to chill Lofi music while you play at your own pace. Will you hatch the shiny variant of each pet?
An idle game about collecting moths.
Why similar: Creature Collector 34.1%, Idler 21.7%, Simulation 12%, Economy 8.1%, Casual 5.6%
An idle pet-collecting clicker game that keeps you company at the bottom of your screen. Click your egg to help it hatch. Grow your collection of pets to unlock upgrades and rarer eggs. Relax to chill Lofi music while you play at your own pace. Will you hatch the shiny variant of each pet?
Why similar: Creature Collector 24.6%, Idler 18.6%, Simulation 11.4%, Economy 9.7%, Casual 6.7%
BirdBalcony is a cozy desktop companion where you feed birds, decorate your balcony, and collect letter fragments to uncover hidden stories. With changing time and weather, each visit feels alive—you never know who will come next.
Why similar: Idler 30.3%, Creature Collector 28.6%, Simulation 22%, Casual 10.6%, Cute 8.2%
Flutterfield is a cozy and relaxing idle game. Buy butterflies and raise them in real time, or catch fully grown ones yourself. Unlock, upgrade, and customize habitats while filling your collection with real-life butterfly species!
Why similar: Creature Collector 33%, Idler 21.4%, Economy 12.9%, Simulation 11.7%, Casual 5%
Decorate your own aquariums and care for a variety of fish in Fishlets, a cozy fish-collecting sim! Feed, breed, sell, and collect fish and aquatic critters in the virtual tanks mode. Drop into Adventure mode and progress through 7 unique levels, unlocking even more fish while fending off threats!
Why similar: Creature Collector 25.3%, Idler 18.7%, Underwater 10.1% ★, Economy 8.4%, Simulation 8.2%
Shanhai Ranch is a desktop idle management game. Collect mythical beasts, assign the five elements, and let them dig treasure, produce resources, and build your ranch on your desktop. Expand storage, upgrade buildings, and grow your own automated beast-running loop.
Why similar: Creature Collector 32.6%, Idler 24.5%, Simulation 15.3%, Casual 8.2%, Cute 6.6%
Little Fish Swims is a relaxing and enjoyable idle game with a casual simulated fish tank located at the top of the screen. There are over a thousand types of fish in the game, and you can customize your own fish tank and background skin style.
Why similar: Creature Collector 36.8%, Idler 27.7%, Simulation 16.9%, Casual 9.4%, Relaxing 5.6%
Turn your focus time into a deep-sea expedition. Set a timer, settle into a quiet research vessel, and collect marine-life records as you work or study. Discover real underwater footage, revisit your creature archive, and take a peaceful crew rest before your next dive.
Why similar: Creature Collector 29.4%, Idler 18.8%, Submarine 15.4% ★, Underwater 13.1% ★, Simulation 11.5%
Slacker Squad is a lightweight desktop idle game that reacts to your keyboard and mouse activity. Work hard and your squad speeds up; slack off and they do too. Mine, cook, unlock characters, and capture defeated monsters as pets while your squad keeps you company.
Why similar: Creature Collector 27.1%, Idler 26.7%, Simulation 18.8%, Casual 10.1%, Cute 6.3%
Build tanks worth livestreaming to a growing fanbase, pull in sponsors for rarer fish and decor, and get to know a cast of fish who each have a personality of their own. Grow from hobbyist to world-renowned aquarist.
Why similar: Creature Collector 36%, Idler 23.1%, Casual 11.8%, Underwater 7.8% ★, Colorful 6.7%
Rat Overflow is an adorable rat breeding simulator about genetics, glory, and having way too many rats. Develop your show winner bloodlines and breed thousands of unique rat coats!
Why similar: Creature Collector 34.6%, Simulation 16.4%, Idler 10.3%, Cute 6.8%, Casual 6.7%
Welcome to Mermeows: Chill Cat Mermaids – where every splash brings a smile! In this enchanting idle clicker creature collection game, traverse hand-drawn lakes, hatch unique Mermeows, and upgrade serene habitats. Collect pearls and let magical currents carry you into a world of calm strategy.
Why similar: Creature Collector 35.3%, Idler 19.2%, Underwater 10.3% ★, Economy 7.6%, Casual 6.6%
A chill, tamagotchi-like idle creature game in the corner of your screen. Raise creatures, unlock 100+ evolutions, and freely customize your room at your own pace!
Why similar: Creature Collector 29.6%, Idler 26.4%, Simulation 19.3%, Pixel Graphics 6.4%, Retro 4.8%
Wing It is a relaxing simulation game where you build and manage a bird sanctuary. Discover, care for, and unlock diverse bird species, customize your haven with unique decor, and explore new locations to expand your sanctuary. Create a paradise for your feathered friends!
Why similar: Creature Collector 29.9%, Idler 19.1%, Simulation 14.9%, Casual 7.9%, Nature 6.6%
Animal Onsen is a cozy and relaxing companion game. It lives at the bottom of your screen while you work, study, or unwind. Decorate your onsen, upgrade amenities, and collect adorable animal visitors as you build the perfect retreat, one peaceful moment at a time.
Why similar: Creature Collector 28.9%, Idler 18.8%, Simulation 10.5%, Economy 9.1%, Nature 6.8%
Let adorable cats make your desktop their home! Adopt different breeds, care for them, play with toys, prepare meals, and send them on adventures. Whether you’re working or relaxing, enjoy their lively company throughout the day.
Why similar: Creature Collector 31%, Simulation 25.1%, Idler 20.1%, Casual 13.9%, Pixel Graphics 4.4%
Watch and play with quirky critters as they generate loads of money for you in a unique idler/creature collector hybrid.
Why similar: Creature Collector 30.8%, Idler 20.5%, Nature 10.2%, Economy 8.9%, Simulation 8.5%
Become the keeper of your own Kumochi sanctuary! Collect a myriad of whimsical creatures, place them across hand-illustrated zones, and watch them grow! Open Kumochi packs, decorate your world, and build the coziest collection — all at your own pace.
Why similar: Creature Collector 30.7%, Simulation 20.6%, Idler 19.5%, Casual 11.5%, Management 4.9%
『Kemono Mix Re』is a exploration, monster-raising simulation game where you nurture local lifeform called 'Kemonos' on a mysterious alien planet. Discover over 60+ Kemono species. Mixing Kemonos together, make your very own Kemono!
Why similar: Creature Collector 51.3%, Simulation 18.7%, Cute 9.6%, Casual 8.6%, Nature 6.8%
A cozy creature-collecting idle game featuring vibrantly handcrafted islands that are freely movable on your screen. Harness elemental aether, grow your creature collection, complete missions, and achieve progression milestones at your own pace for a relaxing and rewarding gameplay experience.
Why similar: Creature Collector 43.5%, Idler 26.3%, Casual 9.8%, Pixel Graphics 6.6%, Relaxing 5.8%
Adopt a free desktop hamster companion that lives right on your screen! Feed it, watch it grow, unlock evolutions, and battle other players in PvP mode. A cozy virtual pet that keeps you company while you work or play.
Why similar: Creature Collector 29.3%, Simulation 21.6%, Idler 17.2%, Casual 10.1%, Nature 6.2%
TINY DINO is an idle nurturing game where little dinosaurs accompany you at the bottom of your screen while you work or study. They produce gems for you to earn profits, and you can plant trees and build structures to create a free and lively world for them, growing together with you.
Why similar: Creature Collector 47.1%, Idler 28.8%, Casual 8.9%, Cute 8.6%, Relaxing 6.1%
A relaxing idle monster collection game (with offline progress). Features 200 monster entries and 29 Lo-fi tracks.
Why similar: Creature Collector 31.3%, Idler 23.5%, Simulation 17%, Casual 13.3%, Cute 8.6%
Collect and breed adorable birds in this pencil-drawn 2D casual idle game! Watch them take leisurely strolls and play on slides in your yard. Purchase furniture, unlock a rich bird encyclopedia, and build a cozy home for you and your feathered friends.
Why similar: Creature Collector 40.1%, Idler 30.8%, Casual 17.3%, Cute 10.7%, Singleplayer 1.2%
Breed, hatch, and level up ducks of all rarities on your incremental duck farm! Make your ducks work for food to level them up to unlock rarer breeds with unique traits. Can you hatch the rarest ducks? Start farming now!
Why similar: Creature Collector 37.6%, Idler 24.7%, Management 7.4%, Casual 7.1%, Colorful 6.6%
AquaFantasia is an engaging and soothing idle game. Begin your aquatic adventure by purchasing a variety of small fry, raise and sell them. You can customize fantasy oceans with rare fishes to create your own aquarium.
Why similar: Creature Collector 28.4%, Idler 17.7%, Economy 11.9%, Underwater 10.9% ★, Simulation 10.8%
Easy Bubbles is a relaxing aquarium simulation filled with cute sea creatures. Manage your aquarium with click and idle mechanics, collect resources and have a pleasant experience in the colorful and peaceful underworld.
Why similar: Creature Collector 26.1%, Idler 17.3%, Underwater 11.1% ★, Simulation 7.5%, Nature 7.3%
"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: Idler 24.6%, Simulation 14.6%, Underwater 13.4% ★, Creature Collector 12.9%, Casual 8.1%
Cast your line, catch fish, and watch the numbers go up! Upgrade your gear, reel in bigger catches, and rebuild Starlight Cove in this cozy fishing incremental. Just one more fish, one more upgrade… and maybe you’ll finally help Grandpa catch the four legendary fish that have eluded him for years.
Why similar: Simulation 19.9%, Idler 14.6%, Economy 12.3%, Casual 12.1%, Management 7.2%
Dive into Slime Farm Simulator, where you'll play with, and care for the Cutest magical slimes ever seen! Watch as they Evolve in whimsical ways, strategically manage their Elements and moods, and expand your enchantingly cute slime farm.
Why similar: Creature Collector 28.3%, Idler 19.1%, Nature 9.9%, Simulation 9.5%, Management 8.7%
Chopikoji Gardens is a relaxing creature collector where you can create art, enter contests, and play mini-games with your Chopikojis to earn money and level up your collection, or just sit back and let them do all the hard work for you!
Why similar: Creature Collector 38.8%, Idler 22.4%, Nature 7.3%, Casual 6.6%, Pixel Graphics 5.7%
An idle creature collector game. From common garden-dwellers to elusive, legendary spirits, every Goober is unique. Can you find them all?
Why similar: Creature Collector 37.9%, Idler 26.2%, Casual 14.8%, Cute 8.2%, Retro 6.7%
Radio Buddy is a relaxing 2D pixel‑art idle simulation. Tune in, unwind, and enjoy a cozy, family‑friendly retro vibe at your own pace.
Why similar: Idler 30.9%, Simulation 29.3%, Casual 16.5%, Pixel Graphics 7.5%, Family Friendly 6.1%
300+ lifelike bugs to collect and grow—breed them to unlock rare species! Customize your terrarium with 300+ landscaping items and 70+ backgrounds. A tiny, soothing nature escape on your screen!🦋🐌🦗🐝🐞🐛🦐
Why similar: Creature Collector 28.8%, Idler 21.7%, Economy 11.7%, Nature 10.3%, Management 8.3%
Reefling is a calm desktop aquarium that sits in the corner of your screen. Feed your fish with a click, earn shells over time, and collect over 150 pixel-art species. Decorate the tank and watch day turn to night. Your fish never starve and you can't lose, so just relax while you work.
Why similar: Creature Collector 33.1%, Idler 20.4%, Underwater 10.9% ★, Simulation 9.3%, Nature 9%
Collect over 100 stylish little pets on your desktop! They can freely move along the bottom of your screen, or live in the little houses you've carefully decorated for them. Hmm... or perhaps send them on adventures to earn treats?
Why similar: Creature Collector 33.4%, Idler 23.6%, Simulation 10.1%, Casual 7.1%, Cute 7%
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.
Why similar: Creature Collector 34.3%, Idler 22.8%, Underwater 6.9% ★, Colorful 6.5%, Casual 6.2%
This is a group of cute little fish swimming leisurely at the bottom of the screen while you work. The fish swim, grow and earn stars for you. Use them to buy other cute little fish until the bottom of the screen becomes a colorful ocean world! Start a leisure desktop fish farming journey!
Why similar: Creature Collector 31.6%, Idler 22.5%, Underwater 15.3% ★, Simulation 8.2%, Cute 5.5%
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: Creature Collector 19.7%, Idler 17%, Underwater 15.2% ★, Simulation 12.5%, Nature 8.6%
Axolotls are nearly extinct. Your lab is their last hope. Build tanks, hatch axolotls, discover endless variations and help introduce them to new habitats across the globe
Why similar: Creature Collector 30.5%, Idler 19.7%, Simulation 13.1%, Nature 7.9%, Management 7%
Idlequarium is a casual simulation game where you raise adorable little fish to earn coins, purchase decorations, and build a fully customized aquarium.The game sits anywhere on your desktop, letting you interact with your live aquarium during work or study breaks.
Why similar: Creature Collector 25.8%, Idler 18.9%, Underwater 13% ★, Economy 10.9%, Management 7.7%
Create a farm at the bottom of the screen and enjoy planting and harvesting with your monster companions! They handle all the work—just plan the layout, decorate, and wait for fun crop mutations. Take a break from busy life and enjoy the calm joy of farming.
Why similar: Creature Collector 25.5%, Idler 20%, Simulation 14.7%, Economy 8.7%, Casual 8.2%
Discover and collect cute Dino Girls, organize their activities, and expand your resort while going about your daily stuff.
Why similar: Creature Collector 25%, Idler 21.1%, Simulation 12.5%, Management 8.3%, Economy 7.5%
Kinguin is a relaxing idle simulator about a penguin streamer. Leave the game in the corner of your screen while you work, upgrade your setup to turn views into valuable followers and subs, and climb the Global Rank. Dominate the algorithm and become the internet's greatest polar legend!
Why similar: Idler 30.5%, Economy 18.2%, Simulation 14.2%, Management 11.7%, Casual 7.6%
Manage a care center for adorable monsters in Monster Care Simulator! Treat clients' creatures, hatch eggs, raise your own companions, and keep them happy with fun activities. Hire staff, expand your facilities, and customize your space to build the ultimate monster sanctuary!
Why similar: Creature Collector 35.6%, Simulation 15.6%, Economy 14.3%, Management 11.5%, Nature 9.3%
Mango’s Fisharium is a short incremental game about catching unique fishes and displaying them in the Fish Aquarium. Designed to be completed in around 4 hours.
Why similar: Creature Collector 24.2%, Idler 23.5%, Simulation 12.1%, Economy 9.9%, Management 8.6%
Moonfishies is relaxing desktop fish simulator. Customize your dream aquarium, catch new fish and breed unique hybrids!
Why similar: Creature Collector 34.6%, Idler 25.7%, Simulation 12.1%, Underwater 8.9% ★, Casual 6.4%
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).
Why similar: Creature Collector 25.2%, Idler 16.8%, Economy 10.7%, Underwater 10.6% ★, Simulation 9.6%
Upgrade your minions as you journey deeper into the mines. Explore different areas. Witness tens of miners at once.
Why similar: Idler 29.8%, Simulation 28.3%, Economy 17.8%, Casual 11.2%, Management 8.9%
A happy aquarium that lives at the bottom of your screen! Tiny Aquarium is a social idle simulator that keeps growing, even when offline. Hatch, sell fish, decorate, go fishin’, and visit your friends’ aquariums with bite-sized daily sessions.
Why similar: Creature Collector 24.4%, Idler 16.7%, Economy 10.6%, Underwater 9.2% ★, Nature 7.6%
A cozy fishing port management game that lives at the bottom of your screen. Grow your fishing port, fish, build, and craft alongside adorable animal companions while enjoying a relaxing harbor life that keeps you company throughout your day.
Why similar: Idler 33.3%, Creature Collector 22%, Simulation 21.3%, Casual 12.2%, Pixel Graphics 7.2%
Watch 150+ abstract, pixel-art insects scurry and fly across your desktop, while customizing your setup freely with a wide variety of decor. Turn your desktop into your very own terrarium, breed rare bugs, and sit back to rake in idle cash!
Why similar: Creature Collector 25.2%, Idler 23.7%, Simulation 20.7%, Casual 11.5%, Pixel Graphics 4.8%
A whisper-quiet aquarium that lives in the corner of your screen. Collect 200+ real-world fish across tropical, coldwater and reef tanks, breed them for rare strains, run a whole fishroom, and let the tank tick over while you work. No pressure, no fail state — just your fish, drifting.
Why similar: Creature Collector 29.3%, Idler 18.3%, Simulation 17.1%, Casual 6.4%, Relaxing 5.6%
Enjoy watching cute hand animated dinosaurs inspired by 90's Tamagotchi live directly on your desktop. Manage your environment, resources to raise and evolve your dinosaurs during their entire life. But don't forget to show them love! Dinosaurs need love!
Why similar: Creature Collector 23.2%, Idler 14.4%, Simulation 11%, Nature 9.9%, Management 7.7%
Raise caterpillars, witness the metamorphosis, and complete your sanctuary in this relaxing butterfly-collecting game.
Why similar: Creature Collector 41.1%, Simulation 27.5%, Casual 15.5%, Nature 9.8%, Relaxing 5.6%
In a corner of your screen sits a Fun-gi Haven just for mushrooms. If you linger long enough, you’ll see all manner of mushroom guests come tumbling in. They may know exactly where they’re headed—but they won’t turn down a little company along the way.
Why similar: Creature Collector 39.6%, Idler 24.1%, Simulation 18.3%, Cute 7%, Nature 4.6%
Relax in a calm idle incremental aquarium. Buy and feed fish that grow in real time. Sell fish to buy more fry and discover rarer species. Build your oasis: unlock and place decorations, and enjoy fish interacting with them. Your world keeps earning even while you're away
Why similar: Creature Collector 27%, Idler 19.4%, Underwater 13.3% ★, Economy 12.5%, Simulation 8.1%
Manage your workforce of mystical work beasts! Increase your team productivity in order to complete the most difficult jobs and earn lots of money, after all, the government won't leave you alone if you don't pay your taxes. Oh, don't forget to give your employers a coffee sometimes.
Why similar: Creature Collector 36.5%, Idler 26.4%, Management 9.1%, Casual 8.2%, Pixel Graphics 7.2%
A cozy, chaotic idle-incremental clicker about growing a civilisation of tiny creatures called Pibbles in a giant tree, set in a post-human world.
Why similar: Idler 28.4%, Simulation 16.9%, Economy 12.8%, Colorful 7.9%, Casual 7.7%