The Xbox Live Gold subscription thing is a bit weird. If you're the type of person who is going to pay for this sort of thing you're probably already an avid gamer, partly because its required for online play. And if that's the case, it's a safe bet that you'll already have a bunch of the titles they're offering.
Anyway, here's what's on the way in November 2016!
Xbox One folks get Super Dungeon Bros all month, with Murdered Soul Suspect arriving on the 16th of November.
Xbox 360 chappettes and chaps will be able to play two pretty great games - Monkey Island Special Edition from the 1st of November and [DRUM ROLL!] Far Cry Blood Dragon from the 16th of November to the 30th of the month.
If you haven't played Blood Dragon it's pretty much the business, with a crazy retro future look and most of your great Far Cry style kills and abilities unlocked from the off. The 360 titles will also work on Xbox One via backwards compatability.