Aside from this being a sex game.
As a writer I expect criticism, otherwise, none of us would ever write better. I'm not saying he can't write period, or that I'm this glorious writer--we all screw up and make basic mistakes--I'm saying there are rules to writing a convincing story, character, and world-building, and because he's so distracted with images and animation that he hasn't even developed the characters properly. Literally, all the characters are so flip-floppy they can give someone whiplash. If you took the dialogue and changed them around to different characters, you'd never know who it belonged to in the first place. (that's my point).
He seems to be doing this backward and on the fly. Again, he simply (by now) should have understood how to apply the basic 3-character-story-arc methods that apply to novels (visual, screenplay, books), it makes no difference.