I played 4 perverted games so far
2 of them were hentai (the others were dos adventures from USA)
I would play more if there were more good hentai games.
I am kind of a hardcore videogamer and don´t want to waste time on games without good story + mechanics.
I also don´t like hardcore hentai (hate is more like it), for me ecchi would be a better choise.
But as soon as I get (find) the english version of Utawarerumono I will try it out, as I like stratagy games, RPG´s and hybrid´s of them the most.