Top similar games like Mammalarium:

Relax and collect over 500 unique dinosaurs in this cozy idle game. Watch hatchlings grow into towering giants in real-time, customize prehistoric habitats across 9 themed packs, and discover rare species from tiny raptors to mighty sauropods.

Relax and collect over 500 unique molluscs in this cozy idle game. Watch larvae grow into stunning adults in real-time, customize vibrant aquatic habitats across 9 themed packs, and discover rare species from garden snails to deep-sea cephalopods.

Relax and collect hundreds of unique frogs and salamanders in this cozy idle game. Watch tadpoles undergo metamorphosis in real-time, customize lush terrariums, and discover rare species. Let your vivarium thrive in the background while you work or study. Start your collection today!

Aviarium is a relaxing sky sanctuary simulation filled with cute birds. Manage your floating aviary with click and idle mechanics, collect resources, and enjoy a pleasant experience in a colorful and peaceful world above the clouds.

Relax and collect hundreds of unique butterflies and moths in this cozy idle game. Watch caterpillars transform from larva to chrysalis to winged beauty, customize lush greenhouses, and discover rare species from monarchs to atlas moths.

Relax and collect hundreds of unique reptiles in this cozy idle game. Watch eggs hatch and babies grow in real-time, customize stunning terrariums, and discover rare species from geckos to chameleons.

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!

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.

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!

A cozy desktop aquarium where you collect tiny fish, hatch new species, decorate their home, and discover little surprises while they quietly live alongside you.

First, put a box on your computer desktop. Then wait, patiently. When the time comes, open it up and collect the cat that's grown inside. It really is that simple! Oh — and if you tuck a cat back into a box, it might just send a blessing your way.

Ribbit Ranch is a cozy idle simulation game for casual play. Collect over 200 million types of frogs, raise them in real time, and sell them for profit. Customize habitats with decorations, rare species, and ultra-rare special frogs.

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.

Aquarium Days is a cozy fish-collecting game with 60 adorable species, 117 appearances, and 18 aquarium scenes. Keep your aquarium in a small window on your desktop, or set it as an animated wallpaper.

Chonkers is a cozy and relaxing idle game. Adopt the cutest fur balls and watch them ramp up the chonk scale as you play with them. Find them a new family. They’ll pay A LOT for your hefty chonker! Complete your collection by finding all the breeds and the rarest space cats!

An idle game about collecting moths.

Tiny pixel monsters live along the bottom of your screen, and climb on top of your windows. Hatch eggs, merge twins to evolve them, and collect over 1,000 looks across 95 forms while you work. Pet them, toss them a treat, and watch them make friends.

Join a family of bears and run the buzziest little honey farm! Collect and discover rare bees, bottle honey jars, expand your farm, and watch your flowery field bloom in this cozy idle management game.

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?

Wing Haven is a relaxing idle game about building cozy bird sanctuaries. Collect rare and exotic feathered friends, give them plant shelter, and watch them grow in real-time! Progress from a basic enclosure to a beautiful nature preserve in old-growth forest, desert oasis, or wetland climates!

Minipia is a cozy desktop idle game. Make a tiny island your own, right in the corner of your screen, while you work or relax. Decorate freely, collect cute animals, discover their stories, and unlock new islands.

🦕 Dino Park is a cozy idle game about collecting dinosaurs! 🦖 Watch your dinosaurs level up in real time, earning more money for your park. Create the perfect environment for your dinosaurs to increase the chance of discovering super rare variants! Can you collect them all?

An incremental dino collection game where prehistoric stickers come to life. Hatch eggs, discover unique variants, build thriving habitats, and uncover powerful combinations to grow your fortune.

Bunny Clicker is a cozy idle game where you can raise your cute bunnies on a small farm. Breed them, feed and play with them to earn more carrots and improve their quality of life.

BuGarden is a cozy flower garden that lives at the bottom of your screen! Plant seeds, water and fertilise them at your own pace, harvest cute fruits and flowers, and swat some pesky bugs. No stress, no mess. A friendly companion moving at a snail’s pace.

Little Ghosties is a cozy 2D idle desktop companion game where adorable ghosts live inside a terrarium on your desktop. Hatch, raise, and collect unique ghosts as they grow from eggs into fully grown adult ghosts.

Cozy Sanctuary is a relaxing pet simulation game where you care for adorable animals living at the bottom of your screen. Grow their food, and keep them happy and fed to attract even more furry friends! They'll stay out of your way while you work or study, but don't forget to give them attention!

This is not Bird Game 3! Build and manage a relaxing bird sanctuary. Collect and raise diverse bird species, and unlock hidden species by gathering feathers. Customize your Birdtopia with themes like forests and islands, and watch your birds thrive in this casual, idle game.

An idle ant colony with real numbers, behind glass on your desktop. Plan 25 kinds of rooms and level each one up two ways, feed your ants four kinds of crumbs, balance foragers, diggers and nurses, and chase milestones that multiply your income — cozy to watch, deep to plan.

Welcome to DeskBird Hunt! A relaxing and fun idle hunting game that lives right on your desktop. Let birds fly across your screen while you work, browse the internet, watch videos, or simply relax. Enjoy a peaceful hunting break in the middle of your routine.

Create your own cozy aquarium, your own COZYQUARIUM! Collect fishes, display your favorites, make them 5 stars!

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

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!

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.

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.

Open packs to collect a variety of shrimp, then breed them to discover even rarer ones. Decorate your own aquarium and watch your shrimp slowly grow in this cozy aquarium game.