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What is RNG (Random Number Generator) in Online Casino Games?

Writer's picture: HunterHunter

Updated: Feb 18




Have you ever wondered how online casinos manage to recreate unpredictability in games? While in physical casinos, professional dealers are in charge of shuffling cards or spinning slot reels, online fairness is ensured by something else: the Random Number Generator (RNG). Keep reading to learn what RNG is in online casino games, how it works, how to identify certified RNG casinos, and the overall importance of RNG for online gaming security.


What Is RNG and Why Is It Important in Online Casino Games?

Think of RNG as the digital equivalent of shuffling cards or rolling dice. In online casino games, these processes are performed by the Random Number Generator, a computational algorithm. 

The algorithm is designed to produce a sequence of numbers lacking any discernible pattern and thus simulates randomness. This is crucial to ensure that every outcome is independent of previous ones, creating a fair gaming environment. Without RNGs, game results could become predictable, undermining the element of chance or "luck" — the very essence of gambling.


How Does the RNG Ensure Fair Play in Online Casino Games?

The magic of RNG lies in its complete randomness. Just as you can't predict where a roulette ball will land in a physical casino, you can't predict the numbers an RNG will generate. This unpredictability creates two essential conditions for fair gaming: transparency and equality.


RNG in Different Games: Slots, Table Games, and Live Casinos

Different casino games use RNG in unique ways. These are some practical examples that will help you understand what RNG is and how it works.


Slots

RNG in online slots is responsible for determining which symbols appear on each reel, creating countless possible combinations. In this way, casinos can ensure each result is random and independent.


Table games

In table games, such as blackjack, roulette, and baccarat, RNGs either shuffle the cards or randomly determine the outcome of a roulette spin. 

Because of this, it’s possible to replicate the randomness of physical casinos, even online.


Live casinos

RNGs are also used in live casino games. Despite relying on human dealers, these games still use a Random Number Generator in some aspects, such as shuffling virtual decks or determining casino bonus features.


How to Identify Certified RNG Casinos

Given the importance of RNG for online gaming security, it’s crucial for your safety that you only play in certified RNG casinos. Here are some tips to identify them:


Verify licensing

First and foremost, always confirm the casino you’re using holds a valid license from a recognized regulatory authority, such as the British Columbia Gaming Policy and Enforcement Branch or the Kahnawake Gaming Commission (Canada).


Search for third-party audits

You should also look for certifications from independent testing agencies, such as eCOGRA or iTech Labs. These entities assess and certify the fairness of RNGs used by the casino.


Investigate the website

The best place to look for licensing, certifications, and transparent information regarding the RNG systems being used is the online casino’s official website. Reputable casinos usually display this information on the Footer or About page.


Look for player reviews

Always check what other players have to say about an online casino before entering it. By researching reviews on forums and blogs, you’ll be able to gather relevant insights regarding RNG integrity and fair play in online casinos.


Myths and Facts About RNG in Online Casinos

Here are some of the most common misconceptions about RNG in online casinos:

  • Myth: Casinos can manipulate RNGs to favour the house.Fact: Licensed online casinos are subject to strict regulations and regular audits to ensure that their RNGs operate fairly and are not tampered with.

  • Myth: RNGs can be predicted or "beaten" with certain strategies.Fact: RNGs are designed to produce entirely random outcomes, making it impossible to predict or influence results through any strategy.

  • Myth: Games become "due" for a win after a series of losses.Fact: Each game outcome is independent. RNG generates new random numbers for each game, so previous results have no bearing on future outcomes.


Now that you know what RNG is in casino games, you’re able to better understand its importance. Random Number Generators ensure that every game outcome is random and unbiased, providing a trustworthy gaming environment. Make sure to choose certified RNG casinos, so that you can enjoy a safe and fair online gaming experience.


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