Tổ tôm or Tụ tam bài (聚三牌) is a draw-and-discard card game played in Vietnam, usually by men. The game is often played at festivals. It is derived from the Chinese game of Khanhoo.
The game uses a type of Chinese money-suited pack consisting of 120 cards. The head and foot of the card give the rank and suit in chữ Hán. During French colonial rule, the Marseilles firm Camoin redesigned the deck to depict people wearing traditional Japanese costumes from the Edo period.[3] There are three suits: Cash (文, Văn), Strings of Cash (索, Sách), and Myriads of Strings (萬, Vạn). Each suit is divided into ten ranks with the highest cards being the Half Cash, Zero String, and Old Man respectively. There are four copies of each card unlike its four-suited kin, Bài bất.