Basically nothing is sold to cover the cost. That’s the basic of how making a profit works. So let’s start from there. Second, when you make a digital product, you invest X and you have no idea how many copies you will sell. It’s much harder to compute the marginal cost compared to a physical item. Videogames are a luxury item, they are by no means necessary. So there is no harm in letting demand and offer regulate the price. If you feel that paying a certain amount is not worth for a game, you don’t pay it, or you wait until the price drops.