Holy crap, RotLA was great for it's time. I'm not kidding either, I spent hours trying to figure that sucker out.
LOL, first it's U3 NES version and now RotLA????Man even for it's time it sucked big time. I never owned the atari, I had the intellivision (ten times better games ). I did play this one a few times at a friends house and boy howdy did it suck, even for it's time. I remember next to nothing about it other than trying to find the black market to get something confusing to take it somewhere else just as confusing.
Atari 2600 = 1997, C64 = 1982 that's a fairly large gap Skaven.
I don't know what they cost, but they definitely weren't "pos" for back then.
When I say early machines Skaven I mean Pong and the like not the Speccy and C64 but I can see why you got your wires crossed there.