The rules are — in addition to being an RPG — that you must control only one character, it must have action combat, and it must have an emphasis on dungeon crawling/exploration rather than combat. Many of them have immersive qualities, but I will not put this requirement on it.
Dungeon does not mean it must be underground, but instead dungeon-shaped. Dark Souls is an example of a game that takes place mostly in a mega-dungeon. Daggerfall has an open world with many individual dungeons. Ultima Underworld takes place in a single dungeon.
I recently found out about TOWERS II: PLIGHT OF THE STARGAZER in the magazine Game Players, issue 88:
It looks neatThere has also been talk of Telega considering publishing additional finished titles that Atari has turned down the opportunity to publis! first of these titles will be Towers 2, a real-time RPG iñ the tradition of the Ultima Underworld series
But after digging into it, it seems the game actually received an "Enhanced" edition for the Jaguar:
https://songbird-productions.com/produc ... -enhanced/
That's certainly… interesting.

