Top similar games like Under the blue horizon - Aquarium:

Build a living pond where every fish has a unique genetic code. Breed for rare traits, balance oxygen and hunger, unlock new species, and watch your ecosystem compose its own soundtrack in real time. Part sim, part idle game, part science experiment gone beautifully wrong.

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!

Idle Skilling is the ultimate Idle Game with years of content! Meant to be played for 5-10 minutes a day, you gradually unlock new skills like mining, fishing, pet breeding, crusading, potion-making, lab-research, construction, and more! With new updates coming, you'll never run out of stuff to do!

Cozy Littlequarium is a relaxing aquarium simulator that sits at the bottom of your screen! Take care, breed them, collect and decorate!

A Placement And Development Game That Only Requires Mouse Operation And Is Played At The Bottom Of The Screen. It Has A Soft Color Screen And Is Suitable For Easy Play While Working, Harvesting Resources And Raising Chickens.

Little Aquarium is a relaxing idle game where you grow your own underwater world. Collect rare fish, discover vibrant color variants, and decorate your dream tank!

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!

A cozy desktop idle game where cute slimes bounce around your tiny farm while you work or study.

"My Aquarium" runs at the bottom of the screen while you are doing other things, making it an idle aquarium simulator you can enjoy comfortably.

This is an idle game you can leave in the corner of your desktop. Watch at your leisure as an android girl researches microbes in a post-apocalyptic world.

Idle Fields is an Idle Skilling Game. Grow crops, cut trees, fish, cook, purchase animals, mine, smith, and decorate your homes! Automate tasks with workers. Unlock all the achievements, level up to become richer, and complete it all!

Capybara Achievement Clicker is a simple incremental and idle game. It features over a hundred easy-to-acquire achievements and a Capybara to click on.

A warm, retro pixel art idle game that's terribly satisfying. Click, automate, prestige — and build your empire one pizza at a time.

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.

Time Clickers is what's called an 'incremental game'. There's always a fun upgrade to look forward to, and the numbers keep getting bigger! Hire a team to fight for you, even when you're offline!

Immerse yourself in a beautifully designed world where you can create, decorate, and manage your very own aquarium while enjoying soothing Lofi music. Whether you're looking to unwind after a long day or boost your productivity, CozyAquarium offers something for everyone.

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.

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.

Cashrooms is an interior design simulator where you can regularly receive items, sell and trade them on Steam to create the room of your dreams.

A nostalgia-infused pixel clicker in a comedy wrapper. 

Machorium - Muscle Aquarium Simulator - is a relaxing idle and sandbox game where you can unwind and have fun. Use points generated by cute little decorative muscle men to unlock various items and create your ideal muscle aquarium, Machorium.

Your purr-fect desktop companion is here! Get adorable cats that chill at the bottom of your screen, keeping you company while you work, study, play, or relax. Collect toys & furniture to build them a cozy home. Pet, feed, play, or simply enjoy their presence.

Grow your realm, build alliances, and explore one of the deepest idle RPGs ever!

The Royal Bakery welcomes you to Bread, a fun simple clicker game. Stay a while, have some fun and click a crumb. Careful too much bread makes you fat.

Sit back and relax with Neko Station, a cozy 2D Pixel Art Desktop Idle Game! Manage your very own 'cat train,' decorating it with the perfect furniture to attract a diverse cast of feline customers. Pick them up at various stations and build friendships in this heartwarming adventure.

Creature Evolution is a game about merging little creatures and seeing what they turn into. You start with a few small critters, and by combining them, they slowly change into new and sometimes unexpected forms. The more you merge, the stranger and bigger they grow.

Grim Clicker is an IDLE/RPG clicker where you will find your own strategy to explore the lost worlds. Inspired by games such as Diablo, Grim Dawn, Dark Souls, etc., the game features a complex character development, many unique items, active and passive playstyle.

A short, simple and relaxing idle game where you grow crops, build homes for farmers, and earn money to decorate.

Catio Simulator is a casual clicker game in which you decorate a catio to attract cats. Pet your cats to get them ready for adoption, collect adoption fees, and buy new decorations and petting abilities!

Kraken Cleaning is an incremental game where you clean the ocean as a giant kraken. Collect trash, recycle it into pearls, unlock abyssal powers, and free ocean creatures that help your cleanup operation.

An idle desktop aquarium game where you buy, feed, and breed fish to discover new species with unique rarities and tiers. Decorate cozy tanks and customize your desk with cute items. Earn money just by caring for your fish, even while you work or relax!

Swing your scythe, earn coins, and spend them on a variety of upgrades to cut deeper into the overgrowth. An incremental action game about pushing further than anyone has gone before

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).

Escape the Cradle is an Incremental RPG with cute pixel art about a foxgirl trying to clear out the dungeon she was born in so she can leave with her mother and explore the outside world. She's animated with Live2d and you restore her hp between runs with headpats!