It&#x27;s not that they&#x27;re porting over games individually, it&#x27;s that they have to get express permission from the publisher of each individual game. Something about the terms of the contract between the publishers and Microsoft being such that a user is only able to play the game on that specific platform (Xbox 360) unless the publisher says otherwise. One could somewhat cynically look at this and say that this is because publishers love to rerelease games for the new platforms; already we&#x27;ve seen a bunch of rereleases and &quot;HD Editions&quot; (even though last generation was also HD) for the PS4 and Xbox One.