Play mahjong online with thousands of players from around the world for fun and win prizes in our weekly online tournaments. You can choose to play at our express tables, sit and go or multi-player tournaments. We have multiple game rule versions including Riichi, Classic and International. Mahjong is a tile game of Chinese origin, invented there in the mid-1800 century but has its roots in older games. In its most well-known form it is played with 144 tiles named Dragons, Winds, Characters, Bamboo and so on. Briefly put, each of the four players at the table receives a number of these tiles at the start, randomly drawn, and during the game tries to selectively exchange some of them so as to eventually arrange all the tiles in his or her hand into certain combinations. Whoever can accomplish this goal first "goes out" (declares a mahjong), and is rewarded by collecting points from the others.