From the folks that brought you Rapelay comes this erotic game: Yuusha kara wa nigerarenai (You Can't Escape From The Hero). Characters look familiar? They should.
Japanese developer Illusion seems to be "inspired" by the Dragon Quest III female character designs. The PC game does not yet have a release date, and there is no info on the official website about gameplay so we don't know how much of You Can't Escape From The Hero can escape from ripping off Dragon Quest. .
So rape? Certainly not acceptable. Knocking off other companies? Well.