A Dawn of the Civilization period setting (early Sumerian Culture Style,The 'Creator' still could be contacted, mix with some Cthulhu elements maybe...)
and Also a Dune like setting (Sand-covered planet, several space noble houses , Galaxy Empire/emperor, and of course not forget the sandworm )
last I would say is the Planet of Apes setting (Yep, the protagonists must be those apes)