Choosing a system

[kyoryu]

But you would be simulating the DF universe pretty well.

There are numerous books where he and his companions are fighting off waves of zombies, cultists, monsters, etc.

There are fights, and some big ones.

But there's usually only a couple per book (with a few obvious exceptions), and they're never really "just to have a fight". They're there to answer some story question.

This is different, I think, than a lot of RPGs where fighting is kinda the point. In those situations, a GM would reasonably look through a monster manual for interesting fights to make sure the players have fun encounters. In DFRPG, that should start with "what's the story? What's the conflict? Is a fight appropriate?" and only then go to what the fight is, where the context should inform what baddies are there.