https://www.gamespot.com/articles/septembers-free-xbox-one-and-xbox-360-games-with-g/1100-6453053/

It's the beginning of September, which means Xbox Live Gold members can now pick up more free Xbox One and Xbox 360 games as part of the Games With Gold program. Two new games are now free, with another two coming soon.

On Xbox One, Forza Motorsport 5: Game of the Year Edition is now free, while Hydro Thunder Hurricane is free on Xbox 360. Also of note is that one of August 2017's Games With Gold titles, Trials Fusion, will continue to be free until September 15.