Creating a Sci-fi save

In the Original Star Trek series, they often ended up visiting planets and in some cases they were very much like Earth. One in particular was even visited by previous Starfleet Captains who so badly violated the Prime Directive, that the inhabitants of that planet took a book on the history of mob families to heart. And designed their society after such. Hits often occurred from each side. It was really hysterically funny to see Captain Kirk, Spock and the landing party sort it all out and return things as best they could to the proper timeline for that planet's development.

All this to say, that you can get away with dwellings that aren't all that futuristic in design. Have fun! And I hope when you are ready to read your story updates. I am, after all, GalacticGal. ;)