To be fair "space game" is not really a genre, its just a setting. You could make a visual novel or a walking simulator set in space, and they would appeal to completely different people than Star Citizen.
But at the same time, just making "warband in space" is not going to get people to fork out money. Even if you could find some in-universe justification for keeping as much of the warband formula as possible, you would lose most of what people play these games for, i.e. mounted melee combat and large land battles.
But at the same time, just making "warband in space" is not going to get people to fork out money. Even if you could find some in-universe justification for keeping as much of the warband formula as possible, you would lose most of what people play these games for, i.e. mounted melee combat and large land battles.