https://www.devpowered.com
Part of the reason developers and publishers rely on that one metric is because it's the easiest one to be collected (it's automatic once you release a Steam page) and is the closest to real sales data that can be collected without serious resources and investment.
Part of the reason developers and publishers rely on that one metric is because it's the easiest one to be collected (it's automatic once you release a Steam page) and is the closest to real sales data that can be collected without serious resources and investment.