It's more of a strategy game than a Sims ripoff. The only games I know which are close to it is the old Alternate Life C64 game, or the Jap game Princess Maker.
I pwned Princess Maker 2, too. Predictably, I went about it all wrong, sending her off into the woods with a big stick and shouting, "NOW GO! AND KILL GRUESOMELY IN MY NAME!" Not unpredictably, this is how I'd raise real spawn, too.