The modders at Tamriel Rebuilt have been building the rest of Morrowind for over two decades now, and the project just put out its ninth and largest expansion in the form of Grasping Fortune, which adds on an enormous chunk of the mainland province that stretches all the way down to its southern border. It's a behemoth, and its crowning jewel is the city of Narsis—capital of the wheelin' and dealin' House Hlaalu.
The city is huge, and stuffed with quests, characters, and the machinations of Hlaalu grandmaster Athires Hlaalu. It is, in fact, so large that it's "bigger than any playable [Elder Scrolls] city in general," says senior TR dev Cicero in a chat with PC Gamer—bigger than Oblivion's Imperial City, Skyrim's Solitude, or Daggerfall's… well, any of the over 15,000 places in Daggerfall. Though I suspect that game's map as a whole still puts every other TES to shame, in terms of size.
