Top similar games like Zen Aquarium:

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.

Turn your computer into a relaxing and cozy safe place. Activate global weather effects such as rain, snow and falling leaves that play no matter what you are doing. Customize them to fit your preferences and your current mood! Light a comforting camp fire, collect friendly companions and more!

"Lofi Aquarium" is a gamified focus tool designed to enhance concentration and relieve stress. As you work, a group of adorable baby fish will keep you company, all set to soothing lofi music. Over time, the fish grow and can be sold for profit. 

A Twitch powered interactive cozy fishing idle game. Add as an overlay for your stream and let your viewers fish with commands, points, bits or subs. Reel in the lurkers and boost viewer engagement passively with a fun interactive game that runs itself while you focus on your content.

Spirit City: Lofi Sessions is a gamified focus tool, set to a soothing lofi soundtrack. Discover and collect Spirits, customize your cozy virtual space, and facilitate your real-life tasks with a collection of handy features designed to improve concentration and ease stress.

Cozy Island Idle is a chill fishing idle game where you catch all sort of fantasy fishes to showcase them in an Aquarium to sell them to turn a profit and customize your aquarium and island.

This is a simple idle game with productivity tools, relaxing minigames, and decor options, all centered around the serene theme of an onsen (Japanese hot spring).

Idle aquarium sim you can keep anywhere on your screen while you do other things, or play in a full screen window you can dock or resize if you wish! Buy endless upgrades, apply trait modifiers, and complete your collection of rare, epic and legendary fish! Don't forget to wishlist!

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!

Photo-Toy Ocean is a PS1-Styled, desktop-background toy where you take pictures of underwater sea life. Running at a 320x320 windowed resolution, this simple relaxing sim will have the player drop in every now & then to photograph the aquatic world & complete a photo album.

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.

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).

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.

Cast n Chill is a cozy idle fishing game where you explore serene lakes, rivers, and oceans. Catch rare fish, upgrade your gear and reel in legendary catches - with your loyal pup by your side.

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

Cozy Room is an idle game for chilling. Enjoy your time with a feline companion.

Ithya: Magic Study is a cozy background app combined with productivity tools. Customize your room and relax with lofi or fantasy playlists in beautiful, hand-drawn environments. Perfect for a focused or creative session in a magical world.

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!

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.

A relaxing idle fishing game that waits for you at the bottom of the screen while you do other things. CATCH, COLLECT and DISPLAY fishes!

With Me: Aquatic Time! is a gamified focus tool where you raise fish and design your aquarium. With soothing music, flowing water, and gently swimming fish, it creates a relaxing space to boost focus. Discover, breed, and nurture fish while personalizing your tranquil aquatic world.

Existential Nature Simulation

Nanomon are tiny, virtual pets who hang out in the corner of your screen. Train, explore, discover, and play with your Nanomon so they can evolve into the perfect companion! Only the best, most attentive trainers will help their Nanomon achieve their life goal!

Desktop Fishing is a cozy idle game that sits in the corner of your screen. Go about your usual desk work (or don't) while your frog buddy catches fish, discovers new outfits, and unlocks fishing spots.

Want to build a bunny paradise? Embark on a bunny-filled journey in Usagi Shima, where you transform an abandoned island into a cozy haven for adorable bunnies! Entice fluffy tourists, deck your island with cuteness, and befriend lovable bunnies.

Relax and catch fish in a beautiful environment. Hire skilled crewmates, invest in lucrative buildings, unlock many boats & upgrades. Dive into the challenge of the fishing mini-game for an interactive experience unlike any other!

Misty's Idle Fishing is a relaxing idle fishing game that sits snuggly in any corner of your desktop! Help Misty upgrade her tools, customise her boat, and discover new islands, so she can catch all sorts of fish while you are busy with other things!

Weyrdlets is an idle virtual pet game that harmonizes relaxation with productivity. Collect adorable items, customize your pet and its home, and bring your loving companion to your desktop to boost real-life tasks, enriching your daily routine with a touch of joy and motivation!

A cozy, retro-inspired hearth to warm your screen and your spirit.

Choose your difficulty: relaxed or challenging. Furnish a whimsical inn for fantasy guests. Upgrade furniture and rooms to boost beauty and profit. Strategize furniture harmony. Embrace chance events and influence fate. Repeat.

Let's face it, we all were once kids. There was a time when we wanted pets, and there was a moment when we wanted to keep a pet fish. Some of us got what they wanted; some didn't. Some cried, some forgot. Aquario is the game where you can live through this traumatic experience again, or anew.

Beautiful 3D Live Wallpaper featuring a sparkling animated Christmas tree, and exciting Christmas countdown where you can count down the days to Christmas, New Year's day, or any date you set. Rotate between 9 themes, including clock, 3D snow and fireworks. Extensive customisation options.

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.

Topac Battle is a cozy and relaxing idle game. Buy Topac Ball, Reveal Cozy Monsters and Level them up, Sell for a higher rarity, and become the master of the chill battle scene. From a simple park to your dream setup with rare exotic monster and ultra-rare color variants!

Cats are Money is a cozy idle game in the "Tamagotchi" genre where you manage a farm and collect unique cats into your inventory. Take care of your pets, feed them, and play with them. Upgrade your farm, unlock new breeds and businesses.

Croakoloco is a relaxing frog collecting idle game. Watch them jump, croak, and eat delicious flies. Grow frogs, feed frogs, or take control of one in “Froggy Mode” for a more active play style!