Richard Stevens has done a good job accurately depicting the parallels between Tetris and life in general. That said, I do believe that Columns can easily fit this formula, as well. There’s probably some other puzzle games that do as well (ie. Pong Solitaire), but you also have to make sure that any of the other possible puzzle titles have no antagonists (ie. Wario’s Woods or Dr. Robotnik’s Mean Bean Machine) and no protagonists (ie. Yoshi’s Cookie or Puzzle Bobble), either. But they definitely do exist.