First press the green flag that appears after loading. then you can click on the fields to grow cops, the house to buy cops but you need money for that, so grow more cops. when your money is 50 or more than that you can buy cops. you need $50 to buy tomato, $250 to buy strawberry and $1000 to buy eggplant. the big building is used to buy workers. when you have $250 you can buy 5 workers and earn $1 per 1 second. when you have $1000 you can buy 25 workers and earn $5 per second. when you have $10000 you can buy 100 workers and earn $100 per second. the all workers you can repeat multiple times. you can click on the small plant to buy fertilizers and earn more money.