>>98421348Space operas, to me, have always had one serious limitation; space itself. Outer space just doesn't have anything interesting in it. Oceans meanwhile have various sea creatures, multiple types of terrain, some unique physics to play around with... And since space operas only ever seem to use space as a medium of travel, you could just use islands instead of planets.
Plus, again, the technology is much more reasonable. Like, submarines and undersea jetpacks are real things, as well as floatation platforms in place of space stations. There are even aquatic firearms(thanks, Russia!) for personnel combat.
It's probably just me, but space is kinda dull. I get that traditionally, space is considered cooler, but it just seems like anything you could do with space, the ocean could do in a more interesting way.
Also, yeah, why doesn't Atlantis have a submarine fleet? Just because they have magic doesn't mean they can't have some stronger infrastructure.