How Does an RNG keep Online Casinos Fair?

If you’ve ever played a slot machine at a casino, you have been exposed to a random number generator.  Simply put, a random number generator makes the slot game and many other casino games a game of chance.

But, how does it work, and is it possible to crack the code and unlock a bank account in the form of a slot machine?

To the second question, the short answer is no, your local casino would quickly go out of business if their RNGS were the subject of hackers or cunning gamblers.

In order to learn how a random generator works in online casinos, we have to look behind the mirror of the industry and gain insight into how the business functions.

First, we will take a look at the technology before explaining some of the logic and reasoning behind it.

RNGs are designed to solve a problem about randomness, no human could ever recreate a truly random set of numbers, but some code can solve that sticky situation.  A pseudo-RNG is designed to follow a pattern, often mathematical in nature, and if you know the code behind this you would be able to predict what numbers will come up next.

Unluckily for the tech-savvy gambler, online casinos also use more robust systems called True RNGs, which is hardware rather than the aforementioned software.  If you want to read more about the differences between the software and hardware versions of RNGs, has plenty of resources.

Why do the casinos use a truly random RNG?

Suffice it to say, it is very difficult to hack an online casino’s slot machine despite high-profile cases of physical casinos having their slot machines compromised. But more importantly for the player, how does an RNG casino make online casinos fair?

The most reputable casinos use true RNGs to ensure that their games are fair for the player.  Slot machines will still pay out at low rates because the odds of getting a desirable symbol is connected to a randomly generated number that is less likely to appear.

The number one reason for a casino to use a truly random RNG is to keep their license and remain in good stead with the authorities.  If a casino was found to be manipulating their RNG games to give the casino results at illegal margins, then the casino would run afoul of the law and lose its license.

So, players at licensed online sites can’t play games completely rigged against.  Of course, the odds of hitting the jackpot are not in your favor, but legal online casinos still have to play by the rules.  And, there are still some preparations you can take to try to increase your odds.

If you do choose to gamble online, make sure you are doing so at a legally licensed operator.  Then you can guarantee you are playing slots with a truly random odds and one not rigged by the house to never let you win.