Not a mod that literally makes you dwarves, but a mod that drops you in the middle of a mountain in a small opening and you have to tunnel through the mountains.
To make up for lack of solar, start with Geothermal tech and make it so a lot of vents are generated.
:D Solid mountain map, I like it! Should be something like a MapGenerator mod or such, though I don't know how to do that :P
Edit: And hey, if it's not about dwarves, write "solid mountain map" or such ;-)
i wish lel
There is a Caveworld Flora mod already:
https://ludeon.com/forums/index.php?topic=13172.msg133446#msg133446
Not sure if it makes everything mountain or not, but give it a shot.