Yaarel
🇮🇱He-Mage
Actually, the Baldurs Gate region has all of that, including an Underdark connecting directly with Fiend planes of the Astral Plane.A setting tells you what you are supposed to do in play, and since in D&D you are supposed to do whatever you want, you need a settingbthat gives all the options. You need dungeons AND dragons, plus perilous swamps and mysterious towers and floating islands and cut throat courts and blasted wastes and magical face forests and on and on.
What I am saying is, zooming in is a terrible idea.