Dominoes BIG is a free iPhone game developed by PLAYTOUCH. It is a digital version of the classic board game of Chinese origin, Dominoes. The game is typically played by two, three, or four people and involves using a set of 28 domino pieces.

In Dominoes BIG, each player starts with either 7 or 6 dominoes, depending on the number of participants. The dominoes are distributed with the points hidden, adding an element of strategy to the game. The player with the highest double (double 6) begins the game, and the next player must place a domino with the same number of points on at least one side of the previously placed domino.

The objective of the game is to be the first player to place all of their dominoes. However, if the game reaches a point where no player can make a move, the player with the fewest points is declared the winner. With its simple rules and challenging gameplay, Dominoes BIG offers an engaging experience for fans of the classic board game.