I also play Columns, Collapse, Tetris, Lemmings, Supaplex, and Pipe Dream to relax. I like the simple puzzle games that I can start and stop. Sure, there are nights for chess and maybe Scrabble, but for the most part I like quick, five-minute breaks from the routine. Puzzle games clear my head so I can get back to work. The breaks help.
The appeal of realistic first-person games escapes me. I would rather play Pac-Man any day.
Anyone else enjoy the classic games as a way to relax? I'd like to imagine Tetris is being played somewhere, by someone, every minute of the day.