Microsoft just announced the Games with Gold for October 2019. As with earlier games included, the Xbox 360 games included for free are playable on Xbox One through Backward Compatibility. Check out the video showcase for the Games with Gold for September 2019 below:
Tembo the Badass Elephant is free from October 1 until October 31 for Xbox One while Ninja Gaiden 3: Razor’s Edge is free from October 16 until October 31 for Xbox One and Xbox 360.
If you have a Game Pass Ultimate subscription, you can download the games showcased above for free as well since Game Pass Ultimate includes Xbox Game Pass, Xbox Game Pass for PC, and Xbox Gold subscriptions.