December 2017 - last edited December 2017
December 2017
When it comes to backward compatibility it's Microsoft who decide what games are added based on the votes received from the public. If there's a game that you are passionate about and would like to see added then please vote for it here: https://xbox.uservoice.com/forums/298503-backward-compatibility
January 2019
October 2021
And that soon never happened
October 2021