Before Skyrim, Oblivion, and Morrowind there was Daggerfall, the second entry in what has become a household name for fantasy RPGs. The original is available on Steam and GOG, though 23 years later we have a modern remake in the form of Daggerfall Unity which brings in modern graphics, controls, QoL improvements and mod support (as well as Linux and Mac support).
I’ve been messing around with it for a minute. It’s dull and repetitive, honestly. And kind of obnoxious without a magic regen mod. All quests have timers, you see, and it takes about 8 hours of resting after each fight to heal to full and recover MP. The dungeons are way bigger than they need to be, and each and every one is a randomly generated labyrinth filled to bursting with monsters. You’re playing find-the-needle-in-the-haystack and can probably afford to get into 10 fights before you fail the quest you’re on.
All of the stuff i like best in daggerfall is iterated upon in later titles to be better - especially spell creation. I hear the story is interesting later on, though.
There’s an option (or maybe it’s a mod?) in Daggerfall Unity to reduce the size of the procedural dungeons. The plot dungeons will still be stupidly large, as their layout is fixed, but it helps with everything else.