This is something I would have liked to have seen in a game that has so many mountainous regions and setting that would fit perfectly. Journey to the center of the earth, learn more about this disappearance of the Dwemer, explore undergound cities of Dunmer and Hobgoblins, find rare metals and alchemical ingredients and spell tomes, etc. I would support a DLC that added this underground adventure. It seems like a perfect fit for this setting.

You could discover the location of the Gold Dragon, a lawful good Dragon that would help uncover the mysteries on the surface. Maybe you could find an ancient dwemer construct to be a follower.

WOOT! ES underworld.

yay more things to get killed by