Random number generators (RNGs) are crucial to the online gaming industry. In fact, RNGs are the heartbeat of the entire business and without them online casinos simply wouldn’t be fair, or fun places to play. At land-based venues, dealers randomise the cards by shuffling them. This can either be done using a single deck after every hand or, for games like blackjack, by loading a casino shoe with up to eight decks of pre-shuffled playing cards. At random number generator casinos, shuffling is replaced by a mathematical formula to ensure every card dealt, dice rolled, or wheel spun is completely random and therefore unpredictable.

Let’s kick things off by talking about if online casinos actually have the power to rig slot machines. Can Slot Machines Be Rigged? The best way to answer this question is to look at exactly how slot machines work. There are two crucial mechanics you need to be aware of: the Random Number Generator (RNG) and the return to player percentage (RTP). IMAGINE KNOWING EXACTLY HOW YOUR FAVORITE ONLINE CASINO ROULETTE RNG WORKS. YOU WILL KNOW THE EXACT PLACE TO BET WHEN A LOOPHOLE COMES UP FROM THE SOFTWARE. NOW I KNOW THAT YOUR PROBABLY WONDERING WHATS IN THE RNG INTEL. IT comes in three files. The first is an overview of the RNG that we made and is the guide for people. RNG casinos use what is known as a pseudorandom number generator (PRNG). The algorithm can create long strings of random numbers automatically, but the entire series is determined by a fixed number, called a seed. By manipulating this seed, developers can control the return to player rates of online casino games. Psuedo RNG vs True RNG. RNG stands for “random number generator”. But there are two main types of random number generators. The most common is Pseudo RNG, which is simply a mathematical algorithm that determines casino game outcomes. It is the technology used in all modern slot machines. All our online casino games use a Random Number Generator (RNG) to guarantee fair play. The RNG is a computer program that ensures the odds of winning are the same as you’d experience playing the game with real cards, dice, or spinning an actual slot machine.

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What Is an RNG and How Does It Work?

Traditionally, if you needed a random number you would use a method similar to what you see in a land-based casino; drawing cards, rolling dice, or even flipping coins. Lotteries and bingo games are essentially rustic RNGs too. As the need for larger quantities of random numbers became more urgent in statistics, computerised RNGs were developed. RNG casinos use what is known as a pseudorandom number generator (PRNG). The algorithm can create long strings of random numbers automatically, but the entire series is determined by a fixed number, called a seed. By manipulating this seed, developers can control the return to player rates of online casino games.

As you can see from the image above, this whole process of creating random numbers to generate fair outcomes is quite complex. Achieving ‘true’ randomness is very difficult, but with modern technology and computer systems, mathematicians and statisticians have gotten close enough for us to enjoy fair casino games without concern.

Why Is RNG Gaming Used at Online Casinos?

RNGs originally came into the casino business as a new way to run slot machines. In the past, slots used psychical reels to determine which symbols would land on (what was usually just a single) payline, to create winning combinations. Today, online slots are complicated and can be played over several paylines. Old-fashioned cogs and reels simply couldn’t handle this kind of complexity, and thus, without the birth of the RNG we would never have reached this point in online slots.

Aside from allowing developers to create more interesting, varied slot games, RNGs are essential for making games fair and honest. Imagine you are sitting in front of a slot game online. From the

minute the game loaded, it has been creating a string of random numbers behind the scenes. The sequence is constantly moving, and won’t stop until you hit the spin button. At this point, the sequence will be halted, and the random number is converted into a tangible outcome – reels coming to a stop, a card being dealt, the winning pocket on a roulette wheel etc. RNGs are tested by independent regulators, and casino sites will not be granted an operating licence if they fail these tests.

Can You Cheat an Online RNG?

The short answer is that, in theory at least, yes. RNGs are computerised algorithms, and therefore can theoretically be hacked. In practice, this is extremely difficult, bordering on impossible for 99% of online casino players. There was an incident in 2008 where a player named Ron Harris developed a program that could predict the result of an RNG, and he won a lot of money playing Keno as result, but he also ended up in prison for his efforts. Today, online casinos are tested regularly for fairness and the authenticity of their RNGs are thoroughly regulated. Unfair or hackable systems almost never slip through the net in the modern day online gambling industry. Let’s have a look at some of the UK’s testing agencies.

TST: Testing for iGaming and Beyond

TST is well-known in the iGaming industry for its technical audits of RNGs and other lottery and sportsbook operations. It also audits poker systems tests for vulnerability to hacking as well as full-scale security tests. The TST company has offices in Italy, London, Macau, Manila, The Netherlands and Vancouver, Canada.

eCOGRA – UK’s Trusted Auditor

As one of the biggest names in the business, it’s likely you have seen the eCOGRA logo peppered around the websites of your favourite online casinos. The London-based company is committed to fair gaming and responsible conduct by operators. Aside from looking into RNGs, its test measure casinos against its own generally accepted practice guidelines to make sure everything is in order before giving it the stamp of approval.

Verisign: A Forbes Favourite

Verisign is a global leader in technical audits for RNGs and the iGaming industry in general. The company, based in North America but with offices in India, China, Switzerland, Australia and the UK, offers a range of security services and is an expert in cyber-attacks. Any casino baring its seal can be assured its RNG is in safe hands.

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Gaming Associates – Gaming Safety since 1990

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Gaming Associates (GA) is a leading consultant to the iGaming industry on issues regarding regulations, security and fairness. Since the 1990s, when gambling regulations really ramped up, the need for expert advice on compliance has risen. GA works with operators to ensure they are legal, and to be legal, they need to have safe, fair RNGs.

Which Online Games Use RNGs?

All modern online casino games use RNGs to provide the luck element of their games. Since we moved into digitally rendered, software-based versions of slots, blackjack, roulette and everything else an RNG casino offers, the games have used numbers to determine their outcomes. The way this works is quite simple. The RNG works in in tandem with casino software to produce fair outcomes. If you are playing blackjack, the second you hit deal the RNG will feed the software a unique value. This value is essentially the result of the hand. In our example of blackjack, that means the order of all the c