Have you guys played Age of Decadence? If you haven't a) buy it when it comes out on the 14th (18th?), technically you can buy and play it now, but since it comes out so soon I'd just wait, or download the demo now and b) play it and revel in the causality of the whole experience. That's a great example of a karma system (i.e. non-existent), but the world reacts how it should react to your deeds. That's the whole point though, making the world react naturally to your actions, whatever they may be. Numerical systems just bring this unnecessary layer of bloat across the whole thing and it's a cop-out in general.