I would love that, too. This game needs a medieval-type mode or something, I know that it's not what the game is about, but it would make for an excellent mod. I've started a new game after getting bored with the Black Forest, and I'd love it if there were some mod like "7 Days to Die", a survival mode where you're just trying to set up a good life for yourself., Building, farming, collecting meat and berries, clearing out forest to expand your fortress, and having to do deal with enemies who want what you have.

Aren't siege engines typically used against fixed, inorganic things like forts and cities?

And doesn't everything we need to kill have the ability to move? I am not certain how practical it would be in the game as it is now, but making and using a trebuchet would be awesome!