https://steamdb.info/faq/#how-are-we-getting-this-information https://steamdb.info/faq/#how-are-we-getting-this-informatio... I found this explanation from ste

https://steamdb.info/faq/#how-are-we-getting-this-information https://steamdb.info/faq/#how-are-we-getting-this-informatio... I found this explanation from steamdb that points to the various projects and libraries they use to gather all the data they have. It's not a how-to, but it has very useful info.