This week Major Nelson revealed the games that will be available as part of the Xbox Live Games with Gold service for October 2016.
During this month Xbox 360 owners will be able to download both MX vs ATV Reflex and I am Alive. I am Alive will be available for free from October 1st and MX vs ATV Reflex will be available for free from October 15th.
On the Xbox One, you will get Mega Baseball: Extra Innings for free from October 1st, and The Escapists from October 16th.
As usual, the Xbox One will also be able to download the Xbox 360 games for free alongside the Xbox One ones.
Source: Major Nelson