Currently I am running a one player GURPS Campaign with Dwayne of Gamer's Closet. Dwayne recently listened to the Game of Thrones audio book and liked it a lot. He came to me to see if I could come up with a campaign where he got to play a knight. Luckily I have an area of the Majestic Wilderlands that is perfect for this. Nomar my "Arthur" land. Instead of focusing on the myth of Arthur, I will focus on the politics. That in conjunction with recent events of my setting should produce something that gives the feel of Game of Thrones but has it own unique situation.
During my prep I discovered something interesting. While knowing the geography and locale was useful of far more importance was the roster of NPCs. The campaign was going to be a sandbox but it wasn't going to be about wandering from place to place. But instead it was more likely it was going to be more about going from people to people.
I am still developing my thoughts on this but here is one of the background documents I developed for the campaign. It details the regions of Nomar focusing on the nobles. Currently I am working fleshing Dwayne's family and I will post later on that. Here the link to the maps to make sense of the writeup.
Playing with DnD5 Characters - 6th level Bard
38 minutes ago