One heroine, provided you count the shipboard AI as the heroine. The protagonist tends to operate behind the scenes, and most of the plot is original, though some parts may draw on Stellaris, Star Citizen, RimWorld, and perhaps other works. No System. Note: Not every player is well-behaved. There may be cyberpsychos.
“What? A game that’s actually 80% realistic!”
“What? The pre-order bonus is a catgirl!”
“What? There’s XX content too, but why can’t I log in with my account from the Chinese region? pmp”
“For more of the story, please read the main text.”