Certified RNG: What It Is, How It Works, and Why You Can Trust the Random Number Generator

Have you ever wondered how Online Casino games can guarantee fair and unpredictable results? Behind every symbol, card, or multiplier lies the Certified RNG, a fundamental technology for the operation of every game.

And it’s not enough just to use a Random Number Generator — it must be audited by a certification body recognized by regulatory authorities. These independent entities rigorously verify that the algorithm complies with all regulatory requirements.

So, can you really trust the RNG? To answer this question, we’ve updated our article to help you better understand how this technology is essential to ensuring safety and fairness in your casino experience. Spin the reels and read on!

What Is Certified RNG?

The Random Number Generator (or RNG for short) is an algorithm responsible for generating all the random events within a game. In other words, it directly influences your session by using unbiased numbers to determine every outcome of the round.

Without RNG technology, results could become predictable—or even manipulated to favor one side — compromising the game’s integrity. Since betting games rely on luck rather than skill, this system must be robust and secure to ensure no one is unfairly affected.

But why do we say Certified RNG? It’s not enough to simply have the algorithm—it must be audited by a certification body authorized by the appropriate regulatory agency. This third-party entity confirms that everything is operating within the parameters established by law.

For example, our iconic Blaze Crash game is certified by GLI (Gaming Labs International) and authorized for use in Brazil. This means the game is approved for distribution in the country’s regulated market — thanks to Blaze’s official licensing.

It’s important to note that each jurisdiction may have different criteria for assessing RNG integrity. As a result, certain casino games may be allowed only in specific regions—which is why some titles in the Blaze catalog are unavailable in Brazil and only offered in other countries.

How Does RNG Work in Online Casinos?

The Random Number Generator is the engine that ensures betting games are fair, unpredictable, and trustworthy. It works in a simple, dynamic, and efficient way — generating random outcomes based on each game’s rules, including Slots, Roulette, Table Games, and Game Shows.

Online casinos typically use a PRNG (Pseudo-Random Number Generator). This is software that uses its programming to generate a sequence of numbers randomly. To do this, it uses a “Seed” — a key that defines the range of possible results — without needing any external input to operate.

The algorithm then processes the Seed and converts it into a Hash, which determines the round’s result. In this way, the PRNG sets the course of the round and the outcome for the player. Yes, this technology turns numbers into a spectacular visual experience on the screen.

Since each game has its own rules, the RNG is configured to meet those specific needs. For example, an online slot with multiple reels and symbols uses the algorithm to determine which symbols appear during a spin and whether other features are activated—ensuring each spin is unique and unbiased.

In table games like Blackjack or Poker, the RNG shuffles the deck and deals the cards to players. And in the case of Roulette, the technology determines how the ball is launched with random force, ultimately deciding where it lands to end the round.

What’s the Difference Between RNG and Provably Fair?

This is a great question — after all, the Provably Fair system is also designed to bring fairness and randomness to Online Betting Games. But yes, there is a key difference: Provably Fair allows the player to verify the integrity of each round, being able to check exactly how the result was generated.

What about TRNG (True Random Number Generator)?

This variation of the algorithm is also known as HRNG (Hardware Random Number Generator) and is used in physical casinos and even in the popular claw machines you see at shopping malls.

Instead of relying on software, TRNG is a physical device that determines random events in the game based on environmental factors — such as the number of times a button is pressed or the ambient temperature.

Why Is Certified RNG Important in Casinos?

Let’s start with gameplay: having predetermined outcomes would make the experience less exciting and challenging — taking away the thrill. Since skill isn’t required, removing the randomness would take away the element of luck that makes the game fun.

Each Online Casino Provider develops its games using its own parameters, which includes the RNG. Regulated markets have rules that everyone must follow, so all games need to meet specific quality standards — ensuring a fair and enjoyable experience for all players.

It’s also worth emphasizing that a Certified RNG has been tested by an entity authorized by the regulatory body. This is the seal of approval that ensures the algorithm is reliable, using strict parameters to protect the player — especially since real money is at stake.

How Can You Tell If a Game Has Certified RNG?

If a game is available on a licensed platform, it means the Certified RNG is embedded in the casino game’s code. Regardless of the Online Casino License, the platform is only authorized to offer certified titles.

If an Online Casino offers games without certification, it may face fines or even lose its license to operate. That’s why any regulated and legally compliant platform only offers certified games — like Blaze, which updated its Brazilian catalog to include only titles that passed certification.

Remember: playing on an unregulated platform is no guarantee that the Random Number Generator follows regulatory standards. This could lead to security issues and financial loss since it’s a casino operating without approval.

Play responsibly at Blaze!

Now you understand why Certified RNG is so important for a fun and truly fair experience. The Random Number Generator is there to ensure that every round is entertaining and unbiased — so yes, you can trust it.

Still, don’t forget to bring responsibility into your gameplay. Plan your sessions, only use money you can afford to lose, and understand all the risks involved — they’re real and can seriously affect your financial and mental well-being.

Ready to enjoy some peace of mind while playing? Then get your heart ready and explore Blaze’s catalog of Certified Casino Games!

Frequently Asked Questions About RNG in Casinos

What does RNG mean?

RNG (or Random Number Generator) is an algorithm used to ensure that all events in a Betting Game are determined in a random, fair, and secure way.

Why does RNG need to be certified?

RNG Certification is conducted by a company authorized by a regulatory body to test, audit, and ensure the Random Number Generator works with integrity and fairness. This allows the game to be legally offered in the market by meeting all legal requirements.

Which games use RNG to function?

RNG is used in Online Casino games like Slots, Table Games, Game Shows, Crash Games, and Scratch Cards. Even traditional video games often use this technology based on software.