
RNG (Random Number Generator) is one of the many terms you'll see associated with the online casino industry. This is, after all, the key system that is responsible for generating random results in games such as slots, roulette, blackjack, and poker, among others.
The main purpose of the RNG or Random Number Generator is to ensure that every spin is unpredictable and fair in every game. On sites like Techopedia, you can find real money poker platforms that implement this system. The RNG is mandatory for the dealing of cards and ensures that each hand is completely random, avoiding any manipulation by the casino or the player.
Simply put, the RNG is an algorithm that generates sequences of random numbers, i.e. without any pattern. Every time a player clicks to spin the reels of a slot machine, to throw the ball in the roulette wheel or to deal the cards, the RNG is activated and produces a random number that defines the outcome of that round.
El RNG process It happens in fractions of a second and previous moves never influence future ones. For this reason, all online casino games are completely random.
Also, and this is something that many players don't know, there are two types of random number generators: truly random number generators (TRNG) and pseudo random number generators (PRNG).
Truly random number generators (TRNGs) rely on unpredictable physical phenomena to create random numbers. They are considered the most accurate, as their results are determined by natural events that also cannot be predicted. Still, their implementation is complex and expensive.
Pseudo-random number generators (PRNGs) are the most common to see in online casinos because they are faster and simpler. They use mathematical algorithms to generate sequences of numbers that are unpredictable enough to ensure fairness in games. In this case, and one of their main advantages, is that they are easy to implement and faster to use in online casino games.
The importance of RNG in casino games
The RNG is a super important system in online casino games. This random number generator is what guarantees fairness in each game and without it the results could be manipulated. Therefore, by using an RNG certificate, casinos can assure players that every spin and every game is completely random and unpredictable.
Who would like to play at a casino that doesn't have this system? Absolutely no one. In this way, the RNG is an essential system to create a fair environment for all players. In addition, regulatory authorities, such as the DGOJ (General Directorate for the Regulation of Gambling) require that the RNGs of the games be tested and certified by independent bodies.
All of this reinforces the transparency of an online casino. Neither the casino nor the game developers can influence the results, which protects players from possible manipulation and fraud.
How do you verify that an RNG is working correctly?
The RNG must work properly to deliver what it promises, so verifying its performance is an equally important process to ensure that casino games are completely fair.
Casinos subject their RNGs to regular audits that are carried out by independent bodies such as eCOGRA, iTech Labs or Gaming Laboratories International (GLI). These bodies must perform extensive testing to ensure that the RNG actually generates truly random number sequences.
While audits are being carried out, specialists must test the RNG by simulating hundreds of plays to detect any patterns or irregularities in the game. The results are then statistically analysed to ensure that the numbers generated are truly random and that the odds of any outcome are fair to players.
Once a casino's RNG has passed the tests, the responsible bodies award it a certification which they usually place on their website. This indicates that they have a properly functioning RNG and that the casino offers a fair and safe gaming environment.



