Has anyone made plans to make some assyrianesque civilization?

Or at least some civ based on ancient sumerians?

I can't help but imagine this RP setting is perfect for such a brutal and harsh empire to thrive that has a very long and complex judicial code with most of the punishments being some arbitrary and horrible death.

I'd do it, but I don't want to spend too much of my freetime on RPing.  Not to mention I just want to go around on horseback raiding for slaves and disintegrating people with magical staffs, all the while act like i'm running a business.