Make rooms accessible via selectable lift to avoid long run times to get from ship entry to pilot seat to resolve the issue of traversing large ships vs small ships
Other ideas:
Have multiple ship interior layouts with different functions, such as:
Being able to sit/lay down on furniture/bed
Interact with sinks/showers/toilets
Interact with fridge/food replicator
Windows that can see out to present location of ship (Observation Deck, etc)
Include an autopilot or NPC crew that can fly the ship like APEX
Include optional room layouts beyond bare bones (Cockpit/Galley/Lav/Quarters) up to full suite (Captain's Quarters, Observation Deck, Lounge, Habitat, Gym, Medical Bay, Science Lab, Astrometrics, etc.)
Customizable color schemes/skins/decor/lighting
Thoughts?