CatSim is a free online cat simulator game. You play as a cat in a big 3D open-world town together with other players: explore the town of Zarechensk, follow the story quests, transform into 16 forms, drive your own car and team up with friends against giant bosses. Run up walls and over rooftops, ride the trams, cause trouble — and escape the police before they catch you.

This is not a quiet pet game — it's an action cat simulator in a shared online world: meet other players, fight or make friends, and grow from a street cat into a legend of the town.

★ A CAT SIMULATOR WITH A LIVING OPEN WORLD
• Rooftops, a river port, bridges, trams, trains, parks and secret corners to explore — a whole cat life in one town.
• Crowds of passers-by, shops to rob, spots to dig, mice to steal from the guard dogs.

★ 16 TRANSFORMATIONS
• Become a winged chimera raining meteors, a wolf, a web-slinging spider cat, an armoured tank cat, a teleporter, a healing wizard seal and more — every form has its own superpower.

★ POLICE CHASES
• Misbehave and you're wanted — up to five stars. Patrol cars, sniffer hounds and a flying police chimera come after you.
• Hide, fight back or end up in cat jail — and plan your escape.

★ YOUR OWN CAR
• Pick a car, paint it, drift along the riverside and call it from your garage anywhere in town.

★ A MULTIPLAYER CAT GAME — PLAY WITH FRIENDS
• Meet other players online, add friends, join a guild, talk in voice and text chat.
• Team up against giant bosses like the Spider Queen — everyone who helps gets a reward.

★ BEYOND THE TOWN
• Cross into the Ice Wasteland, a frozen land ruled by the Ice Emperor, full of hungry imps and wild chimeras.

★ A MYSTERY TO SOLVE
• Your Master has vanished. Use your Detective Sense to find clues, question witnesses and uncover the town's secret.

★ STYLE AND CARE FOR YOUR CAT
• Fur colours, hats, medallions, boots, dances and emotes — make your cat one of a kind.
• Feed your cat: a hungry cat can only think about food, and tasty meals give it speed and strength.
• Open your own business in town and earn fish for treats.

★ LEVEL UP YOUR CAT
• 100 levels on the Cat's Path, each with a reward: new forms, fish, crystals and emotes.
• Daily rewards, a free spin of the Fortune Wheel every day and new tasks for your business.

Love cat games, pet games and animal simulators where you can go anywhere? CatSim is the cat simulator you play online with friends.

CatSim is free to play. It contains ads and optional in-app purchases.