The Invisible Pervert

Invisibility is the whole pitch here: one guy gets the power to go unseen, and the question the game keeps asking is what he does with it. The tone leans horny-comedy rather than moody sci-fi, with the premise mostly an excuse to walk him through households full of women who have no idea he's there.

Play consists of using that invisibility to linger, watch, and gradually push into situations the character couldn't get near otherwise, nudging encounters from accidental peeping toward active participation as the harem around him grows. There's no disguise mechanic or detection meter to manage, just a steady excuse to be somewhere you shouldn't.