The thing about Morrowind for me was that it was so completely alien. It wasn’t just more sword and sorcery in the British countryside but instead unleashed ridiculous magic where people lived in giant shells/mushrooms and the fauna was like nothing I had ever seen. To say nothing of the mechanics which I found more engrossing than the follow on games.
And then you get to Oblivion and Skyrim and they’re Britain and Norway. Cool.