It doesn't need to necessarily be more fantastical but it should how ever look like an evolution of modern technology considering the time gap and the fact they are capable of traversing multiple solar systems. Trains are like 200 years old and look at the aesthetic evolution of them.
If this game was set 50 years in a future where we find a plot device that lets us go to another solar system so the rest of the technology was more grounded I would be fine with it but its not it's set in a far future where we can run around over 100 different systems.