The 12 Days of Christmas is a card game by James Ernest and Mike Selinker. It's a simple deck of cards with 12 drummers drumming, 11 pipers piping, and so on (plus a couple of Clauses). Players take 12 rounds capturing day cards (worth as many points as the day number) and building a perfect hand of gifts for the final scoring round, where the player with the most of each numbered gift scores that number.
Play is as follows:
1. Pass a card to your left.
2. Play a card face down. Reveal cards simultaneously. Lowest card wins the point card. Tied cards are eliminated.
3. Draw a card.