MahJong is a game, entertainment equipment invented by Chinese during the Qing dynasty. It consists of small rectangular blocks made of bamboo, bone or plastic, each of which is engraved with a pattern or inscription. Each pair of MahJong in North China has 136 cards, while that in South China (called sparrow/麻雀 in Guangdong, Hong Kong, Macao and Southern Fujian) has eight more cards, namely: Spring, Summer, Autumn, and Winter; Plum, Orchid, Bamboo, and Chrysanthemum, 144 cards in total. In April 2017, the International Mind Sports Association (IMSA) announced that MahJong had officially become one of the world intellectual sports program.

ZOODomino is an authentic match-elimination style casual puzzle game based on zoo animals. It can be regarded as the quality work in similar domino-link games.