Adult PC Game: The Dark Prince - Version 1.5 by Lurking Hedgehog Archive

About this game: In this game you play as a young man, whose family inherited a mansion from a distant relative. There you are going to reveal some mysteries and to gain some dark powers. You will have to face demon attacks, to meet some strange persons, to protect your family (mom and sister), and to use their gratefulness to gain control over them and to make them your sex slaves.​

The Dark Prince - Version 1.5 by Lurking Hedgehog Gameplay Preview