>>725270835
>ultima underworld 1 and 2
Then your next stop is Arx Fatalis which is basically Underworld 3 and was almost called like that but suits said No.
If you liked artstyle of Underworld then you may enjoy Lands of Lore (in the oppic). I would recommend to save a lot and in different slots, you may softlock yourself like I did.

And yes, Legend of Grimrock games are aboslute masterpieces and LoG was a true GOTY of 2014.