Red Dead Redemption is a few hours away from being officially playable on Xbox One via Backwards Compatibility program. If you do not want to wait until it shows up on the marketplace, here’s a little trick to find it and download in preparation for tomorrow.
First: Find a profile that follows the game – You can use mine Wh1plash96
Second: Find the tab “Following & Followers”
Third: Search by Games and find Red Dead Redemption -> Click on it -> Store -> Install.