Things are getting autumnal over at Steam, which means it's time for one of their bi-annual sales. From now (like, now now) through December 3, Steam does its deep-cuts thing and slashes prices across every genre, from new favorites like Rogue Legacy to predestined classics like Skyrim. New Daily Deals rotate in every 24 hours, and new Flash Sales hit the bottom row every eight hours. Black Friday hath begun.