Elder Scrolls Online, according to an OXM interview. As it stands, players will need the paid Xbox Live subscription to play the game on Xbox One, which Bethesda recently announced is no longer free to play, but will launch with its own $14.99-per-month subscription plan in place.
Bethesda marketing boss Peter Hines told OXM the developer has been "seeing whether or not there's any room to change [Microsoft's] minds about that for folks who are only playing The Elder Scrolls Online and don't want to pay for an Xbox Live Gold subscription just to play The Elder Scrolls Online."
He added, "The answer right now is that's the way it works, but it's something that we're aware of and we keep pushing on to see if there's something that can be done." Elder Scrolls Online will launch in 2014 on PC, Mac, Xbox One and PS4.