Skip to main content
Games

What does RNG mean?

Updated 15.9.2026 · Games

The abbreviation RNG often appears on online casino websites, but what does it actually mean and why is it important for players?

RNG is a system that ensures casino game outcomes are random and fair.

It does not guarantee wins or prevent losses, but it does ensure that game results cannot be predicted or manipulated. This is why players can trust that outcomes at licensed online casinos are determined by chance.

RNG Explained

RNG stands for Random Number Generator.

It is a system based entirely on probability and can be compared to a roll of the dice. As a result, neither the casino nor the player can predict the outcome of the next game round based on previous results, since every round is completely independent of the one before it.

In a slot game, RNG can determine more than just the final payout:

  • which symbols land on the reels
  • whether a bonus feature is triggered
  • whether free spins are awarded
  • whether a winning combination is formed

RNG is not a predictive tool, which means that:

  • Five consecutive losses do not increase the chances of winning on the next game round.
  • A long winning streak does not mean that a loss is inevitably coming.
  • Playing for a longer period does not affect the game's randomness.

How Does RNG Relate to RTP?

RNG determines the random outcome of each individual game round.

Return to Player (RTP), on the other hand, indicates the percentage of bets that is returned to players over the long run.

For example: An RTP of 96% does not mean that an individual player will receive 96% of their bets back. Instead, it represents the statistical average across all game rounds, meaning that the game returns an average of €96 for every €100 bet.

RNG ensures that these outcomes are distributed randomly among players.

Need more help?

Our customer service is happy to help every day.

Send an email
Back to Help Center