Top similar games like Under the blue horizon - Aquarium:

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.

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.

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!

"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!

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.

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.

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.

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!

A nostalgia-infused pixel clicker in a comedy wrapper. 

Creature Evolution is a simple 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.

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.

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.

Color Idle is a relaxing idle clicker where art paints itself! Click to color pixel art, complete quests, and unlock chapters of unique artwork. Earn gold, ascend for upgrades, recruit drones, and unlock hundreds of achievements as each masterpiece comes to life pixel by pixel.

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.

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.

Animal friends to keep you company while you work on other tasks. Run a cozy market, play with your chat during streams or use productivity tools to help you focus. All from your desktop!

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

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.

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

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.

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!

Stress Relief is an idler game, which comes with a reliable companion, the Slime! Are you bored? Are you stressed because of work? Come and destroy your desktop with the tools included! Play, earn Pixel Points and get drops every 25 minutes!

Bongo cat needs your help. Bongo cat needz more hatz!!! Every time you press a key, Bongo cat will punch your taskbar. Type, click, play, work to collect more points. Which hats will you find?

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).

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!

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!

WobblePop: Pop bubbles, dodge silly fish, and dive into colorful underwater fun!