How precise are the sort options on the games page? For instance, if you pick top selling, is the 3rd game from the left the game with exactly the 3rd highest number of purchases across the site? Is it over some time range, or lifetime? Trying to get a sense for how my project is selling compared to similar games on the platform. Thanks!

The "top seller" sort is temporal, so you can think of it as "things currently selling to most." It tries to let new stuff come up to the top so the big games don't always sit there.