Tainted Grail: Fall of Avalon is like Skyrim but with better combat and dar King Arthur themed.
Potion Craft is a game where you run an alchemist shop, entirely stylized to look like medieval paintings.
Buddy Simulator 1984 is a game about a digital companion that likes you too much.
I could give more, but I never see anyone recommend those, and you have a lot of recommendations in this thread already.
That’s because human perception exists on a logarithmic scale! It’s called the Weber-Fechner law, and it was one of the first studied psychological phenomena, before psychology as a field was even defined.
Interestingly, our sense of the “bigness” of numbers is also logarithmic. This is why there have to be explicit explanations of the massive difference between a million and a billion - our brains instinctively and erroneously think “eh, it’s like double.”
~edit I can’t type~
Neon White, Cyberhook, and Crumble are all excellent, though you might be looking for a more traditional platformer.
Blue Fire is decent and definitely worth checking out while it’s $4 right now.
The Outer Wilds
All due respect to the other recommendations in this thread (The Witcher 3 is in my top 3 favorite games ever), but I get the sense you’re looking for a similar vibe - that self-paced, quiet, almost lonely exploration where, though you do have a goal, the point of the game is to wander the world and discover things. While most of these recs (and most open world games in general, so it’s understandable) have a strong story focus, The Outer Wilds will give you that quiet, unguided exploration BoTW does so well.
(And I know explicitly turned down souls-likes, but Elden Ring also hits that vibe super well. If you’re really stuck for something to play, it might be worth a try with one of the magic-focused builds that significantly reduce the skill needed)