Most domino games are blocking games, i.e. the objective is to empty one's hand whilst blocking the opponents. In the end, a score may be determined by counting the pips in the losing players' hands. In scoring games the scoring is different and happens mostly during gameplay, making it the principal objective.

Block Dominoes

Block game The most basic domino variant is for two players and requires a double six set. The 28 tiles are shuffled face down and form the stock or boneyard. Each player draws seven tiles; the remainder is not used. One player begins by downing (playing the first tile) one of their tiles. This tile starts the line of play, a series of tiles in which adjacent tiles touch with matching, i.e. equal, values. The players alternately extend the line of play with one tile at one of its two ends. A player who cannot do this passes. The game ends when one player wins by playing their last tile, or when the game is blocked because neither player can play.

Draw Dominoes
Draw game In the more interesting Draw game, players are additionally allowed to draw as many tiles as desired from the stock before playing a tile, and they are not allowed to pass before the stock is (nearly) empty. The score of a game is the number of pips in the losing player's hand plus the number of pips in the stock. Most rules prescribe that two tiles need to remain in the stock. The Draw game is often referred to as simply "dominoes". Adaptations of both games can accommodate more than two players, who may play individually or in teams.