Pretty sure we have vastly differing tastes when it comes to games. Some are amusing diversions, if I'm stuck with nothing else to do, but I don't recall anything that makes me actually excited or satisfied - though that's not easy without at least a keyboard.
If you like roguelikes, puzzle/boardgames, tetris-style, etc, you'll probably find something.
Oh, and there's a bunch of emulators, if you can be bothered setting them up, which may well enable some decent old games.