like mixing a fighting Game whit a Game that your characters try to avoid violence
that is actually quite common. a game where your character can chose between violence and non violence to solve a problem. be it sneaking, negotiation or other options.
moral dilemmas are also a thing. remember bioshock. where you could chose how to treat the little sisters.
i agree that it is not wise to try to attract fans of all genres.
but i wonder why there seem to be very little games that have the plot device of a good and a bad ending for the love interests. winning for the mc is getting the girl. losing for the mc is, when the girl choses someone else. i am playing a game after all, and not watching a movie.