Top similar games like IDLE PET UFO:

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

Raise and hatch eggs in this idle breeding simulation. Collect various types of SlimeMonster, also known as "Slimeon," and complete your collection!

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!

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!

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).

Merge endless cats on your desktop! Every cat you adopt becomes a unique part in your Collection. Evolve your cats, complete the Collection, and enjoy their company. They’ll embark on adventures, bringing you coins and fish! Get ready to huff cats and let their sweet meows lift your spirits!

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!

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

"Skytopia" is a charming pixel-style fishing simulation idle game. Decorate a beautiful sky island at the base of your desktop, immerse yourself in a relaxing fishing lifestyle, and hatch and nurture a variety of adorable animals on the island.

Plant seeds, pull weeds and sell vegetables - all while doing something else!

Whimsy Koi is a cozy idle game where you manage calming koi ponds. Collect various whimsical koi fish and decorate your ponds however you want. Just relax and enjoy the tranquil experience.

Hatch mystery eggs, watch fish grow to reveal their hidden rarity, and collect the rarest ones in a cozy aquarium you can relax with in the background.

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.

Plantabi is a chill sandbox game where you take care of adorable plants and design the cozy little garden of your dreams!

“Work... or Fish?” is a cozy idle fishing game that runs on your desktop. The cat took a long vacation to enjoy peaceful fishing—will you join? Shrink the window to fish in secret, upgrade gear, and relax in your own little corner.

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?

"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. 

Dive into a simple yet charming world where curious Whomers creatures dig, eat, and survive in a compact 64x64 grid. This minimalistic simulation offers a peaceful experience of watching and interacting with small digital beings as they go about their lives

In Hungrities, you will take care of small and adorable creatures while attracting new visitors who will explore your farm! Play and interact with your cute creatures: drag them, squeeze them, or stop them if they start fighting each other. Have fun while expanding your collection!

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!

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.

Summon and study witches’ familiars in this charming creature collection game. Gather dragons, spirits and more in your quest to complete your magical grimoire. Watch them enchant your screen without intruding while you work, study or relax. With over 100 variations there’s a favourite for everyone!

Animal Workforce: Idle Tycoon Clicker is a simple and laid-back game that’s easy to jump into. Perfect for casual play, it lets you unwind and progress at your own pace, all while collecting rewards and achieving upgrades. There are also plenty of easily obtained Steam Achievements!

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!

Help the cat fairies to arrange resources, produce and harvest crops, and manage the farm. The more efficiently the farm grows, the richer your pockets become. Show some clicking skills to unwelcome visitors who occasionally appear on the farm.

Birdfull is a small relaxing idle game. Attract birds with feed, try to keep them longer, and discover all of them including the unique ones! Watch the birds, generate more eggs in real time, and customize your cozy bird space.

The gaming universe "Pets" is already waiting for you - new active players! Our game is created for all animal lovers and, of course, for those who already have their own favorite pets! Just click and get various pets into your inventory - from cats and dogs to turtles and hamsters!

The future is chaos - frog attacks everywhere! You're a frog farmer in Potato Pioneer Town, build pond setups to attract different ugly frogs, then snatch them up in your bucket - Yoink! Toss your catches into tanks, fatten them up, and sell for big bucks.

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.

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!🦋🐌🦗🐝🐞🐛🦐

This game is about fishing with your cat, surrounded by the sounds of nature. Just hang out with your cat and you will get a new cat at regular intervals. You can earn Paw Points by petting the cat or convert the cat you have into Paw Points to get a new cat.

Adopt a cute pet spider that lives anywhere on your desktop! Team up to discover unique bugs, decorate their web, and unlock adorable spider hats as you work or relax.

《Fluffy Kitchen Saga》A restaurant simulation game located at the bottom of your computer screen, where both staff and customers are fluffy little animals! They’ll keep you company while you work/study. Let’s run a restaurant full of fluffiness!

欢迎来到这片蔚蓝的摸鱼天堂！在这里，你可以购买可爱的海洋萌物——养Q弹发光的水母、逗气鼓鼓的河豚、有趣的寄居蟹，甚至照顾坏笑的鲨鱼！每天喂食、摸摸头、治疗感冒打喷嚏，看着它们茁壮成长~ 还能帮你赚取贝壳币，通过在商店购买的装饰品，来装饰你的海洋牧场，打造属于你一个人的梦幻海底牧场，快来成为最会摸鱼……啊不，最会经营的海洋大亨吧！(๑•̀ㅂ•́)و✧

A cozy idle aquarium overlay that brings your desktop to life with pixel-art fish. You can hatch, breed, and collect fishes in thousands of genetic combinations. Dress them up with accessories, watch them grow from eggs to adults, and unlock playful upgrades through a skill tree.

"Internet Fisherman" is an idle fishing game with Steam Community trading, where you can obtain rare fish every 2 hours and add them to your Steam inventory. Players can feed fish to cats to increase affection, and will appear on the affection leaderboard to compete with other players.