https://www.theverge.com/2018/3/13/17117130/amazon-twitch-prime-free-games

It’s been more than a year since Amazon first tapped into Twitch’s customer base with perks to improve their experience. Now, the online giant will start offering free games from their archives for Prime customers to keep.

Twitch announced Tuesday that, starting on Thursday, those customers would get a pair of free games, Superhot and Oxenfree. Starting on April 1st, new titles will be released, such as Tales from the Borderlands and SteamWorld Dig 2. This is the first time Amazon and Twitch have used their partnership to hand out games on a regular basis.