A Simple Guide to Random Number Generators in Online Casinos

To understand what random number generators (RNGs) are and how they came into the casino business, we must first very briefly look the history of gambling. When casinos were first launched in seventeenth century Italy, they were brick-and-mortar buildings and visitors dressed up to get in. The games that were likely to have been played include roulette, blackjack, and dice. Slot machines were invented two centuries later in 1895 and they fast became an irreplaceable part of any casino. These machines depended on physical cogs and reels to determine which symbols would land on the pay-line, creating winning or losing combinations.

In the twentieth century, massive resort casinos were built creating extravagant cityscapes such as Las Vegas, Macau, Monte Carlo, and Atlantic City. They all offered countless slot machine options and winners became legends in the public mind. Today, thanks to online casinos, it’s no longer necessary to get in the car to enjoy a casino experience, nor is it even necessary to leave home. And slot machines have become virtual, too.

RNGs – A New Way to Run Slots

Today’s online slots are a lot more complicated than their predecessors. For example, they can be played over several pay-lines. Their grids can expand and contract and they come with innovative tech-powered features. There offer progressive Jackpots, bonus games, and more.

To handle this kind of complexity, the RNG was born. RNGs allow for more interesting and varied game mechanics, and they are essential to making the games and the casinos fair, honest, and regulation-compliant. RNGs are tested by independent authorities and they’re a crucial element in granting an operating license to an online casino.

RNG – the Whats, Whys, and Hows

The RNG is a complex program code that uses MD5 algorithm. It’s used for all games that are based on random results such as slots, poker, and roulette. In slots, for example, as you load the game, there’s a long string of random numbers being generated behind the scene. This string is always moving and only comes to a halt when you hit spin. A tangible outcome number is thus generated. In table games such as poker, the RNG helps determine the next card to be drawn, the one after that, and the one after that, until the game is over.

Another reason game providers and casinos use RNG is to monitor the performance metrics of online slots and table games. For example, they make sure that RTP (return to player) is stable at, say, 97.2%. RTP is the percentage of all the wagered money a slot machine pays back to players, over a minimum of one million plays. Basically, RTP indicates how often a player will win.





Can you calculate RNG?

In theory, it sounds possible to find out the next RNG. In practice, it’s quite impossible. This is because the complex multi-stage RNG algorithm ensures the absolute randomness of the results.

Can RNG be hacked, you might be asking yourself. Again, in theory, yes. But in practice, it would take a long time, and by then the cybersecurity protection in place would alert the system of suspicious activity.

We hope this post was helpful. Questions? Comments? You know where to find us.

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