Each player gets 7 game pieces, "bones", to start with. The player with the highest double goes first and places it on the board. A double is a bone with the same number of both sides.
A domino game has two "endings" where you can place the next bone. The number on one of the side of the bone being placed must match the number at the end where it is being placed.
If a player can't make a move he/she must draw a new bone, or pass (depending on the Draw mode).
The player who manages to get rid of all his/her bones is the winner! If the game is locked, the player with the least amount of "dots" left is the winner.
Tip: You can change Draw mode using the menus at the bottom of the screen.