How well does this play with kids? I'm aware BitD has a pretty heavy bent on vices, but I'm trying to find something a bit more than "kill the monsters, take their stuff" for my eight and six year old
As FitD games go, it's pretty low on vices, crime and grimness. I do not have a six or eight year-old but I think it's probably fairly suitable subject matter-wise. I think the base building might be a bit complex though.
I would say Mountain Home is quite low on "kill the monsters, take their stuff." Characters can fight but I didn't design the game around violence as the primary or only mode of problem solving.