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.

★ A LIVING OPEN WORLD
• Rooftops, a river port, bridges, trams, trains, parks and secret corners to explore.
• 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, 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.

★ PLAY WITH FRIENDS
• A multiplayer cat game: meet other players, 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.

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

★ STYLE YOUR CAT
• Fur colours, hats, medallions, boots, dances and emotes — make your cat one of a kind.

Don't forget to feed your cat — a hungry cat can only think about food!

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