This is a list of games, not series, that just popped to the top of my head, all out of stuff I've seen or messed with or have, which I find interesting to some degree, regardless of how fun (though I consider many of these to be some kind of fun). I limited it to one per series where applicable, so it's not all just a bunch of favorites from a favorite series. Feel free to question my choices either in taste or to know more about them.
Chart made with this Topsters thing.