Players take on the role of a cat owner in Catz , adopting a virtual feline companion and caring for its needs. The game takes place within a single screen, where the cat roams around while the player uses a cursor to interact with it. By using items such as a brush, players can keep their cat healthy and happy, but neglecting its care will result in it escaping.
Gameplay involves feeding, playing with, and caring for the cat, all of which are essential to unlock new items and breeds. As players progress, they must balance the cat's needs and desires, as running out of food or attention will cause the cat to become stressed or even leave the game world.