I've been here the whole time.
In other words; Game Changers.
Every now and then I think I should put down on virtual paper why I feel some games are truly in a different echelon for my personal rankings. Then I think how I don't even have a definitive list of personal rankings. I don't know that today we'll sort out a ranked preference or provide definitive, convincing support on why each item below is a cut-above. Regardless, I thought there should be a one-stop shop for games that I think are absolutely worth playing because they do something unfamiliar within a familiar medium, and in some cases provide an experience that's better off being picked up sight unseen.