Dominoes Games Online. Enjoy this classic board game, the domino, with its particular tiles with two zones marked with points, representing two different numbers. The objective of the domino game is to join tiles at one end so that they have the same number of points at those ends. The tiles with the same number of points at both ends are called doubles, there are only 7 double tiles in the set of domino tiles, and it is usually more difficult to fit these tiles. When they are placed in the domino, they are usually placed transversely instead of point to point like the other dominoes. An educational board game ideal for children because of its simplicity.