After the fake Games With Gold leaked list that appeared everywhere on the internet a few days ago, the official October 2017 game list has been already released, as usual, confirmed by Major Nelson himself.
A lot of people probably prefer the fake list but the official list is pretty good in my opinion, especially for the Xbox 360 games.
Oct 1-31 Gone Home
Oct 16-Nov 15 The turing test
Xbox 360 (backward compatible)
Oct 1-15 Rayman 3 HD
Oct 16-31 Medal Of Honor Airborne