not exactly what your asking for, but you can check out which OS's users were using for Steam for the past decade https://web.archive.org/web/20160201000000*/h

not exactly what your asking for, but you can check out which OS's users were using for Steam for the past decade https://web.archive.org/web/20160201000000*/http://store.steampowered.com/hwsurvey/ https://web.archive.org/web/20160201000000*/http://store.ste...