So the main difference seems to be the length and fittedness? The man in the second picture doesn’t look too far off the game design to me, other than the fantail back added to both gender designs.
The real female designs actually look more fitted than the game version.
For reference, some pictures I’d previously uploaded of one of my characters wearing it:
I feel like it’s halfway between the male and female designs you posted? (With the collar shape, looser fit around the shoulders, and the length is more like the male version than the ankle-length female version.)
It’s like for some reason they’ve gone with one design halfway between the two gender-specific originals. And then made them different anyway for some reason.