While some casino games have a skill element in the outcome, some casino games are purely determined by chance. Because all trusted online gambling agency casino games are partly or completely driven by chance, all casino games count on a random number generator, or RNG within the software that powers the game. The RNG is a mathematical application that does just what it says: generates a completely random number. Not all RNGs are identical, and they have to be tested extensively to guarantee that the numbers they generate actually are random.
In some games, the use of an RNG has an obvious role. In European roulette, as an example, the RNG generates a number from 1 to 37 (with 37 corresponding to “0”) on the roulette wheel. The RNG generates a number, the casino stops, and bets are paid or forfeited.
In craps, the RNG has to generate two random numbers simultaneously, and in single deck card games, the RNG has to generate a number from 1 to 52, with each of those numbers corresponding to a certain card. During an individual deck card game, the RNG must “remember” which cards it has already dealt to ensure that they will not be dealt again. With multiple-deck games like online blackjack, the RNG has an much more complicated mathematical algorithm driving it.
Some RNGs require the user to specify an initial “seed” value, which itself varies randomly. Many of them use the time on a clock as a seed, in order that there is absolutely no human intervention at all in the RNG. You’ll find some RNGs that basically involve numerous RNGs running all at the exact same time, with one RNG picking from among the results, creating a sort of super-randomness to the calculation. Of course, these are very oversimplified ways of describing how RNGs work, but it provides you with some concept of the “brain” behind the many online casino games you enjoy.
To be deemed as fair, numbers spit out by any RNG have to be unpredictable and unbiased. To make certain that this really is the situation, internet gaming platforms have to be tested regularly by independent testing entities like eCOGRA. The testing groups have to test the RNG algorithms over millions of hands of card games or millions of throws of dice to make sure that the numbers are unpredictable and unbiased.
In your online research about internet gambling, you could stumble across someone or site telling you that the specific slot machine has a “cycle” that is predictable enough you could learn when it’s “due” for a jackpot, or that could want to sell you some sort of system for predicting hits. These ploys aren’t gambles at all: they’re just good ways to throw away your money. Save those hard-earned dollars for something else!