Poker is a card game, the most popular of a class of games called vying games, in which players with fully or partially concealed cards make wagers into a central pot, which is awarded to the player or players with the best combination of cards or to the player who makes an uncalled bet. Poker can also refer to video poker, a single-player game seen in casinos much like a slot machine, or to other games that use poker hand rankings.

National Lottery building located on Paseo de la Reforma in Mexico City.

A lottery is a popular form of gambling which involves the drawing of lots for a prize. Some governments forbid it, while others endorse it to the extent of organizing a national lottery. It is common to find some degree of regulation of lottery by governments.

Dice games are games that use or incorporate a die, usually as a random device.