Alex you irreverant thing....
My view is that it's not easy to explain such things- just as not all D/s relationships are alike, the same seems to be true with Gor.
Obviously Gor is related to some sci-fi series of books, but few Goreans seem to agree on the 'one true way'
Just as few in the D/s lifestyle seem to agree on the 'one true way'
Just put 'Gor' into a search engine- you'll be innundated by sites.
D/s to me is where one gives their power to another, for guidance, bondage games, kinky sex or a combination of all.