July is a special month for Amazon Prime customers. Amazon celebrates Prime Day, a day and a half of sales for their loyal customers. This year it will take place on July 16th. Since Amazon also owns Twitch, there had to be something special for Twitch Prime members as well.
From now until July 18th, Twitch will be offering 21 free games including Brutal Legend and Pillars of Eternity. In order to download them for free, you will need to download the Twitch desktop app here.