Online Keno Game: Play Free Keno online against the computer. Keno is a game similar to the lottery or bingo, which is played in most modern casinos. Players usually select from 1 to 20 numbers and mark them in a ticket with a matrix containing 80 numbers (from 1 to 80). Then randomly randle numbers, and the player hit on the basis of the number of coincidences between his bet and the numbers that have appeared in the raffle. Try your luck with this funny version of Keno!