I thought that if when you start a new ship, the game asks you what kind, prodria in the future to have a category called "Space Station".
It would be a way to build stations, which will be very resistant, unmovable and very OP.
They could have their own category of edited parts, for example, that the pieces are 10 times pass resistant, that the laser has penetration, and that many rooms are required special to be able to have a functional station.
They are overwhelmingly superior to the ships, but as a problem, they can not move, only minimally, something that would mark the difference in the game, allowing there to be "safe zones".
This would also allow you to put "leviathans" or "bosses" in the game, huge monsters that represent a great challenge to win.
We need something that is harder than a normal ship, or something weaker perhaps ...
