Not everything is fantasy. All it means is fantasy is popular.
Splinter Cell, the Battlefield games, Hitman, are all not fantasy. I'm inclined to include Unreal, but my exposure to that series is limited. Half-Life. Star Wars when it's not focused on Jedi, such as in Republic Commando or Bounty Hunter (never played Bounty Hunter, I'm assuming).
Battlestar Galactica, the supernatural aspects don't play that big a role, in my opinion and I don't include hearing sound in space. Firefly/Serenity, and I'm also tempted to include Farscape. Chronicles of Riddick is fantasy, but not Pitch Black.
Star Wars isn't Science Fantasy. Science Fantasy would imply that science is used for the fantasy. It's Science Fiction & Fantasy. Depending upon what you're looking at, the specific book, game, movie, or whatever, it will lean towards one or the other. Science Fantasy would be the equivalent of technomages, people who fling around otherwise supernatural powers as the result of scientific advancement.