Civ and Shogun are.... not SRPGs. That's all there is to say about it, really.
Uh, if you mean a turn based strategy game, try...
Master of Orion 1/2
Master of Magic
Alpha Centauri
Age of Wonders 1/2/Shadow Magic
Europa Universalis 3 (with all the expansions)
Maybe Gal Civ 2. (no, don't try Elemental, it bites)
I think that's in order of decreasing ancientness as well, sorta.
--
assert(!hotterThan(foo, "Hot Nymphomaniacal Lesbian Mind-Controlling Dominatrix Fairy Doctors with glasses"))