Eve-online springs to mind. I've never been much of a gamer, but Eve is a good game, highly complex, challenging, and is reflective of whatever morality you bring to the game.
/johnny
In contrast, those "great games of the past" (care to name some? does anyone play them now?) were accompanied by such non-masterpieces as Liesure Suit Larry (moral corruption with a grin), Zero Wing ("All your base..."), and lots of really really truly forgettable (please, please forget) stuff.