I tried to embark on this a few years ago, thinking particularly for cases where space is at a premium (airports) or I don't want to worry about wrecking/losing game components (camping, the beach).

Overall I didn't find a lot that I liked, particularly in the two-player space. Everything seemed to be either Rummy-family games around set collecting, or trick-taking games that might as well have been Hearts or Euchre.

All that to say, if you've got a few favourites, please recommend!