The game can be made better by adding the interstellar travel feature, where we will be able to visit distant stars (it can be made of Warp Drive or Real-Time Animation that makes the journey almost instant after setting the path), the planets and stars will be manufactured via an algorithm that automatically creates systems, or it can also In every new update, a few systems are put in place, you can also put the systems that players make in the game, I think that it is really possible with existing programming tools, knowing that these algorithms are present in many simulation games!
I am really sorry if my English is not that fluent, but I think the general idea is understandable !