, Duo is double the fun! In Duo, players take turns matching two out of three features on the cards: colors, numbers, and symbols. Wild Cards add to the fun. The first player to play all his cards is the winner. In Demon Duo, there's no waiting for turns. Play matches as fast as you can. Duo deck consists of 76 playing cards; 64 cards have various combinations of three elements. In addition there are 12 wild cards.For 2-6 players, ages 6 and up. Duo Card Game is part of the series of Let's Play(TM) Card Games, which provide affordable family fun.