I'm currently on a sci-fi kick. I'm sick of futurist games that are nothing but space opera or fantasy IN SPACE. Where's my scientific basis, slower than light travel, invisible lasers, and non-human aliens? Instead it's all psychic powers, FTL, fanwank about how the lasers are actually plasma, and sexy aliens. I consider myself lucky when they're not using swords.
I'd settle for modern games, though.