https://www.gamespot.com/articles/10-free-pc-games-available-now-for-amazon-twitch-p/1100-6460424/

All month, Amazon has been giving free PC games to Amazon/Twitch Prime members to build anticipation for Prime Day. Guess what? Prime Day has arrived. And right now Amazon and Twitch are giving away 10 PC games for free to Prime members. These are among the 21 free games for Prime members in July.

The availability windows vary depending on the game, but one game goes away each day, so grab these games while you can. For instance, this is your last chance to grab the humorous point-and-click adventure game Deponia: Doomsday, so make sure to claim that one today.