To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyses reviews to verify trustworthiness.
Pages and pages of statistics about weapons and ships and populations but hardly anything actually happens and when it does, a battle for instance, it's over in a page or two or even just a paragraph. Stick figure characters.