I designed an Arthurian RPG, based off of Joe Pruitt's Adventurer RPG and once called Arthurian Adventurer RPG, now called Excalibur.
Funnily enough, I haven't done much Arthurian reading. I always found it rather stiff. I took the basic idea of divine right to the throne, and questioned whether it was right using the story of the game. Apparently my players believed in the legends and since Arthur drew the sword then he is the king.
But in Lost Legacy, apparently Arthur did not produce an heir (mixing the legend with the legend of Alexander the Great now) and though he was a magnificent king during his reign, his death caused his kingdom to splinter into minor fiefdoms. So, in truth, was he the right king for the job?
But for Arthurian reading, I read a few obscure stories that I have now forgotten the titles of. The once I can remember is the Merlin series, where apparently he is Merlyn and the sword is Caliburnus. I was young then and was very confused.
xDungeonMasterx