The object of Keno is to guess which numbers will be randomly selected by the Keno machine. The Keno machine contains 80 balls which are numbered from 1 to 80. Before the game begins you must place a wager from $1 to $4 and select from 1 to 10 numbers. Once you have selected your wager and numbers, then press the Play button to begin. The Keno machine will then randomly select 20 numbers. The object is to have as many matches as possible between the numbers you selected and the numbers that were randomly selected by the Keno machine. The payoff is determined by the number of matches made. The pay chart above the Keno board shows the payoffs for each winning combination.