Understanding Random Number Generators at Online Casinos

This page examines Random Number Generators (RNGs) and their role in online casino games. Learn everything you need to know and what to look out for before playing for real money.

  • Understand Random Number Generators and how they work.
  • Learn how they guarantee fair gambling at Australian casinos.
  • Explore how RNGs are tested and if it’s possible to predict their outcome.

Table Of Content

What Are Random Number Generators?

Random number generators (RNG) are computer algorithms that produce completely unpredictable outcomes. Every second, RNGs are responsible for providing either a single number or a set of numbers from the sequence it generates.

RNGs guarantee the fairness of almost all online casino games except live dealer games. That’s because these games recreate a true land-based experience using real human dealers, real decks of cards and other casino equipment.

Beyond online casinos, RNGs have a wide range of uses in many fields where random outcomes are essential to ensure fairness.

For example:

  • Video Gaming: Used for generating maps, determining outcomes, and creating unpredictable events.
  • Simulations: Crucial for modelling complex systems in physics, engineering, economics, etc.
  • Cryptography: Essential for generating secure encryption keys.
  • Statistical Sampling: Helps select unbiased samples for analysis.
  • Testing: Simulates user behaviour and generates test cases.

How RNGs Work

Random Number Generators have been used in casino pokies for a long time, even in the days of old-fashioned pokie reels at land-based casinos. Nowadays, all sorts of online casino games use RNGs.

Here’s a simplified breakdown of how they work:

  1. Seed Selection: When you start playing a game, like spinning a pokie reel or shuffling cards, you choose a starting number, referred to as a seed.
  2. Algorithmic Generation: The Random Number Generator calculates the following sequence of numbers using an algorithm.
  3. Number Assignment: Each symbol in a pokie or card in a table game corresponds to a numeric value that doesn’t follow any pattern.
  4. RNG Transmission: The RNG transmits these numbers to the casino software, determining the game’s outcome. For example, whether it’s the reels stopping, cards being dealt or dice rolling.

We use RNGs in many areas of our lives, from computer games to security software and statistical sampling. There are two main types of RNGs – True Random or Pseudo-Random.

True Random Number Generators

True random number generators (TRNGs) are used in situations where high-quality randomness is essential and where predictability or bias is unacceptable.

Here are some common scenarios where TRNGs are used:

  • Cryptography: TRNGs are crucial for generating cryptographic keys and initialisation vectors in cryptographic protocols where security relies on unpredictability.
  • Financial Transactions: In banking and financial sectors, TRNGs are used for generating random numbers in cryptographic protocols to secure online transactions and protect sensitive financial data.
  • Lotteries and Gambling: TRNGs are employed to ensure fairness and unpredictability in lottery drawings, casino games, and other forms of gambling where randomness is critical for integrity and fairness.
  • Scientific Research: TRNGs are used in scientific experiments, simulations, and statistical analysis where true randomness is required to eliminate bias and ensure accurate results.
  • Quality Testing: TRNGs are utilised in quality testing and certification processes, particularly in industries where randomness is necessary for ensuring product quality and compliance with standards.
  • Gaming and Entertainment: In gaming applications where randomness is key to gameplay mechanics, such as in online casinos or multiplayer games, TRNGs are used to generate unpredictable outcomes to enhance user experience and prevent cheating.
  • Simulation and Modeling: TRNGs are employed in simulations and modeling tasks in various fields such as physics, biology, and engineering, where true randomness is needed to accurately represent real-world phenomena and to obtain reliable results.
  • Cryptocurrency Mining: TRNGs are used in the process of cryptocurrency mining to generate random values used in cryptographic hashing functions, which are essential for securing the blockchain network and validating transactions.

Pseudo-Random Number Generators

Pseudo-random number generators (PRNGs) are used in a variety of applications where true randomness isn’t strictly required but where random-like behaviour is desirable for practical purposes.

Here are some common scenarios where PRNGs are used:

  • Simulation and Modeling: PRNGs are extensively used in simulations and modelling tasks across scientific and engineering disciplines. While the generated sequences are deterministic, they exhibit statistical properties similar to true random sequences, making them suitable for many applications.
  • Computer Graphics: PRNGs are employed in computer graphics for tasks such as generating random textures, distributing particles, and adding randomness to animations, providing realistic and visually appealing effects.
  • Games and Entertainment: PRNGs are crucial in gaming applications for generating random events, such as dice rolls, card shuffling, enemy behaviour, and procedural content generation, enhancing gameplay and creating dynamic experiences.
  • Numerical Analysis: In numerical methods and algorithms, PRNGs are employed for tasks such as randomised optimisation, random walks, and randomised algorithms, providing efficient and probabilistic solutions to various problems.
  • Statistical Analysis: PRNGs are utilised in statistical sampling techniques for generating random samples from probability distributions, facilitating statistical analysis, hypothesis testing, and estimation procedures.
  • Cryptographic Protocols: In some cases, PRNGs are used in cryptographic protocols where the requirements for randomness are less stringent, such as for generating nonces or ephemeral keys in certain communication protocols.
  • Quality Testing and Simulation: PRNGs are used in quality testing processes and simulation applications across industries to introduce randomness and variability, ensuring comprehensive testing and accurate representation of real-world scenarios.
  • Randomised Algorithms: PRNGs play a key role in randomised algorithms for tasks such as sorting, graph algorithms, and combinatorial optimisation, providing efficient and probabilistic solutions to algorithmic problems.

Why RNGs Ensure Fair Gambling For Players

Online casinos use RNGs to make sure that games like virtual poker, pokies, scratch cards – and any other non-live game – have random outcomes. The RNG is always active, which means it consistently produces numbers during your gameplay.

Software developers use RNGs to introduce fresh mechanics and features, making games fun while also guaranteeing genuinely random results. This gives you equal chances to win, no matter which casino game you play.

For example, RNGs are essential in pokies to decide where symbols land on the reels and which combination result you get. This randomness is what generates the element of chance with online pokies.

Similarly, RNGs play a role in table games, like card games where hands are dealt or dice games where numbers are rolled. Even in virtual bingo, the number picker uses an RNG to produce fair results.

Top Tip
Courtney Profile Picture

Good To Know

Software providers and independent regulators conduct tests to verify the integrity of each game, ensuring your winning chances aren’t rigged. You can access these reports via the online casino regulator, or by contacting the casino’s customer support.  

How RNGs Are Tested

Independent auditors rigorously test and verify RNGs. This includes checking the game’s fairness, auditing poker systems, security testing, verifying game payouts, and many other tests.

Commonly recognised auditors entrusted with this task include:

  • eCogra: This independent auditor inspects online gambling software, ensuring fair games. Technical experts analyse game compliance with RNG requirements, giving out an eCogra certification upon a successful audit.
  • iTech Labs: iTech Labs, a top global leader, certifies online gaming systems to ensure compliance with jurisdictional regulations. Their RNG certification process includes code analysis, rigorous testing, and system validation.
  • Gaming Labs International (GLI): GLI is another well-known test lab that certifies RNG-based games. Online casinos highly seek GLI certificates, which are globally recognised and approved in regulated markets.
  • Technical Systems Testing (TST): TST verifies all requirements for both single-player and multi-player online and mobile casino games. They test systems to ensure they meet the regulatory standards in the casino’s region.

All of these independent auditors are widely trusted within the industry. If you spot a seal of approval from any of these auditors at the casino you decide to join, you can rest assured that the games meet fair standards.

Licensing bodies like the Malta Gaming Authority or the UK Gambling Commission also play a crucial role in RNG testing. They make sure that online casinos follow strict regulations and standards, which include verifying RNGs.

Software providers must undergo RNG testing before implementing any changes to the game. This includes checking the design, artwork, algorithms, and Return to Player (RTP) percentage. This guarantees that any software changes are carefully looked over to maintain fairness.

Benefits For Obtaining An RNG Certification

All reputable online casinos submit their RNGs to be tested by a third party. New online casinos find obtaining an RNG certification valuable since it offers many advantages.

Some of these benefits include:

  1. Regulatory Compliance: Regulatory bodies require online casinos to obtain RNG certification to comply with gambling legislation. This also increases a casino’s reputation, making them more reliable and trustworthy.
  2. Player Trust: You are more likely to sign up at a casino that is open about its gaming practices. When a casino displays its RNG certification, you can trust that the games have not been tampered with, giving you a fair chance of winning real money.
  3. Partnerships: RNG certification makes it easier for online casinos to partner with software providers and payment services. Partners prefer to work with casinos that prioritise fairness and transparency.

Can You Predict The Outcome of RNGs?

You really can’t predict the RNGs used in casino games. This fact is what makes games like pokies 100% luck-based and totally random. There are no strategies for beating RNGs. For example, there’s no way to know what symbol combinations a spin will produce.

No algorithm or method can guarantee a win. It doesn’t matter how many times the game has been played – the chances of winning the next time still remain the same.

Randomness is a big part of gambling. Casino games like pokies are also called games of chance since you can only win or lose based on your luck – you can never be sure how a game will turn out.

That being said, some games like blackjack contain a skill element. While you can’t guarantee a game’s outcome, but you can calculate winning probabilities. Knowing strategies like when to make certain moves can improve your odds of winning.

Can Online Casinos Rig RNGs?

While theoretically possible, it is improbable for online casinos to rig a game’s RNG. This would involve the operator tampering with the game code to manipulate the outcome. There are a few historical records of this happening, but they are scarce.

This is why established casinos are regularly audited by independent third parties like eCOGRA and licensing bodies like the Malta Gaming Authority or the UK Gambling Commission to ensure fairness and transparency.

Reliable casinos are vested in maintaining their reputation and avoiding legal consequences. Providers and auditors test games during development and continue testing them while they are live at these casinos.

A reputable casino would always avoid facing closure or substantial fines by manipulating RNGs. This is unnecessary since every game includes a house edge, guaranteeing the casino’s profitability.

If you avoid dodgy online casinos and play games from well-established and respectable software developers, you can rest assured that all game results will remain fair and genuinely random.

Key Takeaways

  • Manipulating RNGs is theoretically possible but highly unlikely.
  • Rigging would involve tampering with game code, which is rare due to audits by independent third parties and licensing bodies.
  • Reliable online casinos have a vested interest in maintaining their reputation and avoiding legal consequences.
  • Online casino games undergo testing during development and ongoing testing while live.
  • The built-in house edge of each game ensures the casino’s profitability, eliminating the need for rigging.
  • Play games from established software providers like Pragmatic Play, Microgaming, and NetEnt to guarantee fair gameplay.
  • Reputable casinos are regularly audited to ensure fairness and transparency.

Frequently Asked Questions About Online Casinos RNGs

Random Number Generators (RNG) are an algorithm that creates a sequence of numbers (seeds) without any pattern. In online casinos, RNGs are crucial for ensuring game fairness and randomness.

Random Number Generators produce unpredictable game outcomes for both players and the casino. This unpredictability ensures that every game outcome is completely independent of any previous results.

No, live dealer games do not rely on RNGs. Instead, these casino games involve real human dealers conducting the game in real time, providing more interactive and immersive gameplay.

Though theoretically possible, manipulating or predicting RNG outcomes is highly improbable in practice due to the complexity of the algorithms implemented in online casino games.

Trustworthy casinos have their RNGs tested and certified by independent auditors such as eCOGRA, iTechLabs, TST, and so on. You should always look for these certifications when choosing an online casino.

Published on: 2024/04/16

About the Author

Hi, I'm Courtney, the Webmaster at No Deposit Kings - We provide visitors with free and easy access to real money casino gaming thanks to no deposit casino bonuses offered by our hand-picked selection of online casinos.