This game is pretty complex, soooo... Click the cat food can in the top left to gain cat food. Then, summon a cat using the bar down below. They'll attack the enemy castle for you. Upon opening a chest... - Get gems to upgrade your cats, get them to 200% damage to active UBER MODE. - Get a cat capsule and select a cat to get a new one. - Click the worker cat button to upgrade your hammer, which automatically generates more cat food.
restored :)