For many years one of the most popular forms of gambling in Ireland was Bingo, and an evening playing Bingo at the local Bingo club was an important part of their social life for many people. Then came the smoking ban and the Bingo clubs suffered a severe fall in regular visitors and many closed. Recently however the Bingo clubs have seen a bit of a revival primarily because we have never lost our love of gambling with numbers. The online casinos also recognised that casino games involving gambling on numbers would always be popular and every major online casino offers one or more versions of Bingo in their casino games range. As if to prove the point many online casinos have also added new numbers games to their range of casino games, one of the most popular of which is the game of Keno. Playing Keno at an online casino involves choosing up to twenty numbers from 1 to 80 hoping to match as many as possible with twenty numbers then selected by the online casino Random Number Generator. The more numbers you match the more you win, but the casino game of Keno has an added element for those who want to increase their winnings. If a player decides to choose less than twenty numbers, the pay-out per number matched increases because there is a reduced chance of matching a particular set of numbers. As an example, if a player decides to select just ten numbers the chances of matching say five of them is considerably less than the chances of matching five from twenty. If that sounds a little complicated it is easier than it appears because the online casino graphics clearly show how the winning odds per number changes as the player makes more selections. Keno is a fun casino games and well worth a try if you are a Bingo fan.