If you have ever ventured into the world of Las Vegas casinos you will know that there is always a game of Keno running which you can play from anywhere in the casino, even while you are playing other casino games. The same is really true of online keno; it is one of those games that you can play in the background while you are doing something else. Keno online is a simple numbers game similar in a way to Lotteries or casino Bingo but whereas Bingo is played against other players, Keno is purely against the house. The game of Keno is simple enough; there are 80 numbers of which 20 are drawn each round and you win by matching your numbers against those drawn. What differentiates Keno from other numbers games is that you can choose how many numbers to back in any round but obviously the more numbers you back the greater your chance of hitting so the odds will be smaller and it is the odds that make the game of Keno different. When dealing with small numbers it is easy to assess your chances of winning, for example, every round there are 20 numbers drawn out of the 80 possible so if you back one number your chances are one in four of hitting it, if you back two numbers your chances of hitting one number become one in two but your chances of hitting both of them are only one in 16. If you play Keno regularly you will have your own preferred betting pattern but before you play, check the odds that are being paid against the various combinations and also check more than one online casino as not all odds are the same. Also check whether there is a maximum, this is often set at 10,000 which means that if you are looking for the big win realistically it is not worth backing more than 8 numbers per round. If you are happy with smaller wins more frequently then by all means back more numbers. Free Keno is another way of checking the odds payable and determining your pattern of play, it’s an easy game, give it a go.