Ace of Aces: or, why you should Do Maths as a game designer

Kit Barry:

There are no dice, no counters, no moving parts. You don’t even need to be in the same place as your opponent, you just need to be able to give each other page numbers. It takes less than a minute to learn how to play—even though you now have full control over a pretty sophisticated flying machine—and creates quick-fire play that makes total sense in the seat-of-your-pants early aviation era.

Error correction is effortlessly built in: if you don’t end up on matching page numbers, one of you goofed.