» About The Game Of Keno

A lottery-like or bingo-like gambling game played at modern casinos is called keno. A circular glass enclosure called a "bubble" containing 80 ping pong-like balls which determine the balldraw result is used in the game of keno. Each ball has a number (from 1 to 80) imprinted on it. A blower pushes air into the bubble and mixes the balls during the balldraw. A "caller" is used to press a lever opening a tube, where the balls lift one at a time into a "V" shaped tube called the "rabbit ears". The caller and a "verifier" record each of 20 balls drawn, and the computerized keno system calculates all wagers based on the numbers drawn.
One can choose any numbers on a a blank keno ticket form and mark them with an "X". After all players successfully place their wagers, the casino draws 20 balls (numbers) at random.
Each casino sets its own series of pay scale choices called "paytables". The player is paid based on how many numbers drawn match the numbers selected on the ticket and according to the paytable selected with regard to the wager amount. Players will find a wide variation of keno paytables from casino to casino and a large deviation in the house edge set for each of those paytables. No two casinos' keno paytables are identical.
Usually the house edge is from less than 4% to 66%.