Understanding RNG & Fair Play in mobile roulette

If you like playing online roulette, then you must know about random number generators (RNG). Yes, it may be a bit geeky to dive into every technology and see how it works, but since we are talking about games of luck, it can make a huge difference in how you engage with games like mobile roulette.

In other words, learning how these games work might help you come up with the perfect strategy and help you balance the risk and reward.

Random Number Generators are now available in most of the casino games online. But many people are confused about how it works and some of them even believe that the games are rigged.

Well, RNGs are there to make an even playing field for everyone. They are in charge of the outcome of every game by deploying random occasions based on an algorithm that goes through all the game’s combinations.

So, let’s learn more about random number generators, who knows, maybe learning more about this technology may help you win more money, or at least extend your gambling sessions.

What is RNG and how does it work?

Let’s clear some common misconceptions about random number generators right from the start. No, you cannot impact the outcome of the game no matter which strategy you use and no, the process is not rigged, you just have to be lucky to win.

A Random Number Generator (RNG) is in fact a complex algorithm that is designed to produce a sequence of numbers that have no discernible pattern. In other words, when you place a bet on roulette, the algorithm goes through all the different combinations and chooses a random one.

For example, in mobile roulette, the random number generator determines where the virtual ball will land after every spin. On top of that, each time the algorithm runs it is totally independent from previous or future results.

Therefore, looking at the last 5 times the algorithm dropped “red” thinking that is going to be “black” the next time is a strategy that doesn’t work.

Random Number Generators are designed to be unpredictable, meaning that no player or casino can predict or manipulate the results, and that’s a good thing.

Now, two main types of RNGs are commonly used in online gambling, such as:

First, we have True Random Number Generators (TRNGs) which rely on physical processes, such as atmospheric noise, just to generate the randomness. They are rarely used in mobile roulette games just because of hardware limitations. You can check here the best roulette apps here: youbet.com/casino-news/the-best-real-money-roulette-apps-in-2025/ 

On the other hand, we have Pseudo-Random Number Generators (PRNGs) which use algorithms and a starting seed value to generate random sequences.

How casinos ensure fairness in mobile roulette

So, can online casino apps play with these random number generators and tune in the software in their favor? Well, it is a question that we’ve all asked ourselves, especially after a suspicious pattern where after a couple of wins at the roulette table you cannot get another one for multiple sessions.

Well, the good thing is that casinos cannot play with RNGs, in fact, they have Third-Party Audits from independent organizations like eCOGRA, iTech Labs, and GLI, which test and certify the RNGs for fairness. A casino needs a valid certification in order to offer such games, and passing the test is the only way of getting a license.

The type of RNGs that casinos use is also important. Reputable gambling authorities, such as the UK Gambling Commission or Malta Gaming Authority require operators to only use certified RNGs before issuing a license.

Lastly, most mobile roulette games are required to publish their RTP percentages publicly on the app or website.

Can players be sure that mobile roulette isn’t rigged?

Despite regulatory safeguards, some players remain skeptical about fairness in mobile roulette. Here are ways to verify that a game is legit:

• Play at Licensed Casinos: Stick to well-known, licensed platforms with a solid reputation and positive reviews.
• Check for Certification Seals: Look for seals from auditing organizations like eCOGRA, which confirm that the RNG has been independently tested.
• Avoid Shady Operators: If a site has vague licensing information, negative user reviews, or unrealistic promotions, proceed with caution.
• Test for Consistency: Over thousands of spins, results should align with expected probabilities. If a roulette game consistently defies statistical norms, it could be a red flag.

Live dealer roulette vs. RNG-based roulette

For players who remain unsure about RNG fairness, live dealer roulette offers an alternative. In live roulette, a human dealer spins a physical wheel in real time, streamed directly to players. This eliminates concerns about algorithms controlling the game, as the outcome is based on a real-world physical process.

However, RNG-based roulette offers advantages too:

• Faster Gameplay: No waiting for a dealer or other players.
• 24/7 Availability: Games are available at any time, unlike scheduled live dealer sessions.
• More Variants: RNG-powered roulette games offer unique versions like multi-wheel and lightning roulette, which aren’t always available in live casinos.

Final words

So, the random number generators they use in mobile roulette ensure that the game is fair for everybody. But at the same time, this process makes it harder to deploy a strategy since every spin of the wheel is totally random.