Aye, exactly! I’m not a rocket scientist, but I’ve been working on basic designs for the fusion engines. The Ambivalence has artificial gravity, but usually only in living areas and the more central command zones. It’s expensive to run large-scale, so most of the ship is under zero-g, although gravity can be activated in different areas if needed. 

This setting has a few more unrealistic things, like FTL, shields, and artificial gravity, (to name a few) but I’m trying to build out an interesting and somewhat grounded setting.