Here are a few minor but fundamental suggestions to add!
on Mars, the atmospheric pressure is about 100 x less dense than the earth so when you open a door without depressurizing, there should be a suction effect
when building a room, it is automatically pressurized system without apparent why not add an atmosphere creation system and heat
Energy is important but or does it come? nuclear reactor, solar panel?
the ability to create more diverse buildings like a round greenhouse with the March apparent soil. all heated and pressurized
