https://www.gamespot.com/articles/available-now-10-games-free-for-twitch-amazon-prim/1100-6460502/

Amazon Prime Day 2018 may have come and gone, but the deals aren't done yet. On the contrary: You can still download free PC games from Twitch through the end of July. Right now 10 games are available for Prime members, but the number will dwindle in the coming days, so grab them as soon as possible. In fact, you can even get the games to keep and play forever using a free Amazon Prime trial.

To get your free games, you'll first have to link your Twitch and Amazon Prime accounts. Then head to Twitch.tv and click the crown icon next to the search bar. All the free games and other goodies are yours to claim in the drop-down menu that appears. Just note you'll need the Twitch desktop app to access the games.