Produce resources, combine them to produce even more resources, sell them in the store and use money you earn from sale to upgrade or buy new factories. Try yourself at producing apple pie, refrigirator, computer, t-shirt, shoes, car and more! Start small with apple production, then quickly move on to more complex resources. For example, production of apple juice requires apples, sugar (which is in turn produced from sugar canes), paper carton (which is produced from lumber).