Ultima - Most.Important.Game.Series.Ever. @ Joystiq
Joystiq has a piece titled Ultima: Most.Important.Gamer.Series.Ever which sounds reasonable to me:
Hey there. Whatcha playing? No, actually, don't tell me. You're playing Ultima. You don't know you're playing Ultima, but you are. If you're playing an open-world game, you're dealing with Ultima. If you're playing a massively-multiplayer game, you're dealing with Ultima. If you're playing a game with a morality system, Ultima. Even something as simple as three-dimensional graphics – either in perspective or overall representation – have ties to Ultima. How?