You've made me a good laugh (I was reading in my freetime while I was attending school stuff).
let me suggest you something about game instead of put trans stuffs do something better like put a girl who is captain and boys who are worker for her in a space ship the rest of all depends on your imagination
I always think I must answer honestly and respectfully otherwise I'm not a good 'indie company' and such.
Multiple answers:
1. I like Girl on Girl stuff (involves Futa x Girl)
2. It already exists multiple times, several iterations
3. That can be only poorly executed even if you are into that nasty stuff. If we would skip adult content, just play Mass Effect 1-2-3-Andromeda O_O
4. It is possible to have only female crew and have intercourses with other females
5. First rule of playing a game / posting in forums / etc. is you see the tags: Ingored/Disliked Tags = Skip and scroll again
6. DAZ has only FEW (in caps-lock) good male assets every guy must be a twin in order to have a good amount of male characters. I've even used the same character thrice in this very game because males are AWFUL. (or few of them are good). Girls are much easier to find, cuter and AFTER ALL almost every game is SUPPOSED TO date GIRLS. Why not take both?
I can also come up with more why this and not thats.
ALSO! Read my custom title. Guess that says it all now.