Welcome to Simulation_237. This is a "game" where you set up variable and observe the way "organisms" strive for survival. Their lives are fairly simple, eat food, and reproduce. You on the other hand, are their mighty god, peering over their existence. You also have the ability to dish out food by clicking on the floor, or perhaps smite individuals by clicking on them directly. With each generation a organism would have a slight mutation from it's parent.
Set the variables in the beginning of the game. Then use your mouse to grant food or smite organisms.