A Game of Thrones is a total conversion mod for Crusader Kings II, based on George R. R. Martin’s fantasy novel series, A Song of Ice and Fire.
I recently rated the mod 8 out of 10 because I was in the opinion that the mod gets boring after a time which was definitely not true because I wasn't too familiar with the game mechanics and so on. But now since I played the main game and also the mod I can only say that this mod is a huge improvement towards the base game, + it's in the world of ice and fire. 10/10, great mod if not the best mod.