Erika would pwn Hawthorne.
LA Agartha is pretty Avernum-ish. Well, not really, but sorta. Lotta differences actually, but the idea of a human nation living underground are similar.
I see intense cave by cave battles, if someone could design the map (I guess is would like like an ant farm. Actually, that's an awesome idea...a VERTICAL map, where the top line of provinces are the surface, and the rest are many levels of interconnected tunnels. Tons of chokepoints. Oh the sheer joy
)