Originally Posted by
Ielenia
No, that's just your headcanon. There is no lore that states the goblins are an underground race. If goblins were supposed to be an underground race, then their culture, architecture, etc, would reflect that, but none of that do. Dwarves are an actual representation of an underground race as even their buildings on the surface are built down into the ground, or into the sides of mountains. They tend to build down, not up. Y'know, like races used to being underground tend to do?
Goblins do not display this behavior. In fact, not only none of their settlements are underground, but they're all put in big, wide clearings.