Keno is a casino game where players have to choose 1 to 10 keno numbers from a table of numbers ranging from 1 to 80; much like bingo. The keno numbers are then drawn and depending on how many of them you got right, you get a payout.
In a traditional keno game, the keno draw is performed using a ball machine similar to those used for lotteries and bingo. Twenty numbered balls are drawn at random, and players win if any of their chosen numbers match the drawn numbers. The more numbers that match, the higher the payout.
Online keno uses a random number generator to draw the numbers. The payouts for online keno games are typically similar to those for traditional keno games, however, the keno draw procedure and unique features often vary at different online casino platforms.
After the players pick their numbers, the casino keno software "calls" 20 random numbers, which determine the winners. The payouts in keno depend on how many numbers marked on the player's card match the ones that have been drawn by the casino.