https://www.polygon.com/2017/8/24/16197314/xbox-games-with-gold-free-games-september-2017

Xbox Live Gold subscribers will be able to download a healthy mix of games from September’s Games With Gold lineup, including the beloved indie game Oxenfree, Microsoft announced today.

The Racing Game of the Year Edition of Forza Motorsport 5, which was originally released in November 2013 as an Xbox One launch title, will be free all month long. Forza 5 introduced concepts such as the “Drivatar,” an AI based on your actual driving behavior in the game.