d30 feature is one of the main reasons I've been slow to update the d30 Sandbox Companion. I cannot believe that something that, at first, seemed like a no-brainer to me, ended up being so difficult. Honestly, it's been three or four months (off-and-on) of looking at it, putting it down, and coming back to it... just to figure out the inhabitants thing. In the end, the answer was so simple, I couldn't believe it took me this long to come to it. Instead of trying to create an overly-detailed inhabitant chart, I've opted for a "generalized" one that allows the DM to "shift" the results as need be, to fit the locale/campaign or, most importantly, the party level!
To download a free PDF of this d30 Ruins Generator from MediaFire, click here.