All the winning numbers are paid accordingly. For instance, if you have placed the bet on 20 numbers and you have got 12 matching numbers, you will win the money according to the proportion of numbers. If you have got all the matching numbers then you will win maximum payout. It is not necessary that all the casinos offer equal amount of payouts. It highly varies from casino to casino. Some casinos might offer huge amount of cash on winning the game whereas others might not offer huge amounts. This is the only reason that you need to check the payout policy of the casino while searching for one.
So it is interesting to play keno online and win huge amounts with this simple game. Always select the casino that offers huge paybacks in order to ensure and grab maximum profit in casino gaming.