No More Underground
The underground expansion DLC is out and you still don’t want the underground? This mod is for you.
This mod replaces small underground with no underground.
It is also recommended for those who want to improve performance without changing the map size.
Note
I have not experienced any issues other than the generation of entrances to the underground that are not accessible, but the game is not inherently designed to have no underground, so who knows what could happen.