Go Back

How Do Online Slots Decide Who Wins?

How Do Online Slots Decide Who Wins?

Online slot games owe their popularity to their straightforward rules, captivating themes, exciting bonus features and the potential to win actual money. Yet, many players remain puzzled about the inner workings of these games, especially the methods used to determine winners. 

This article aims to shed light on the complexities of online slot games, discussing the pivotal role of Random Number Generators (RNGs), the importance of Return to Player (RTP) percentages, and the influence of volatility on potential earnings. 

Are Online Slot Machines Rigged or Random?

Online slots use RNGs to determine the outcome of spins. These use complex algorithms to generate random number sequences at an incredibly high speed, which are then translated into specific results on the slot reels. The RNG does not know which combinations result in a win. It merely generates the number sequences, leaving the game software to translate it into an array of symbols and then determine if that results in a spin's outcome being a winning combination or not. 

The RNG generates random and unpredictable outcomes on each spin. The casino cannot tamper with the RNG. Also, they are subject to audits from third-party companies to ensure they meet a standard of fairness and randomness. 

Furthermore, slots have a house edge like all casino games, which guarantees the casino profits in the long run, so they have no need to rig the slot games. 

How Do Online Slots Decide Who Wins?

Online slot games employ an RNG to ascertain the results of each spin. The RNG uses an intricate mathematical algorithm to produce millions of random number sequences per second, guaranteeing unpredictability and fairness. 

Each time a player hits the Spin button, the slot utilises the number sequence generated by the RNG at that precise moment for that spin. This sequence then translates into a random combination of symbols on the reels. 

The RNG guarantees that each spin is independent, meaning past spins do not impact future ones. The victory or loss of a player is determined purely by chance, and the odds of winning on a particular slot game remain the same with every spin. 

Can You Win Real Money On Online Slots?

Indeed, players can win real money playing online slots as they play using their deposited funds. However, due to their random nature, winnings are never promised. Certain factors can give a rough idea of a slot's payout behaviour, and many players consider these when choosing a slot game to play. 

Online Slots Odds of Winning Explained

Since online slots are games of chance, there are no strategies one can use to consistently win. The RNG ensures each outcome is entirely random and independent from previous spins. While players cannot predict or influence the results, understanding the RTP and volatility of a game can guide their game selection. However, ultimately, nothing is guaranteed. 

Return To Player (RTP)

The RTP of a slot game signifies the theoretical percentage of all the wagered money that a slot machine averages out as paying back to players over a prolonged period. Typically, the RTP ranges between 88% and 98%, although some games may have lower or higher percentages. 

For example, a slot game with an RTP of 96% implies that, in theory, it should eventually average out as paying back £96 for every £100 wagered. However, this is a long-term average and does not guarantee that each player will get back 96% of their wagers in a session. Due to the random nature of slots, players may win more than the RTP suggests, they may win less, or they may win nothing at all. 


Volatility is another critical factor when playing online slots. It denotes the theoretical behaviour of a specific slot game and gives players an idea of the size and frequency of potential wins. 

High-volatility slots may land wins less frequently but are more likely to award larger potential wins than lower-volatility slots. Whereas low-volatility slots may land wins more frequently but award smaller potential wins. Again, this is just in theory; the outcomes may differ due to the randomness of slot games. 

Do Online Slots Pay Better At Certain Times?

Contrary to some theories, the time of day does not affect the likelihood of winning at online slots. The RNG operates independently of external factors such as time, ensuring randomness and fairness at all times. Therefore, whether you play in the morning, afternoon, or at night, your chances of winning on a specific slot remain the same. 

It's crucial always to play responsibly, understanding that wins are not guaranteed and losses are part of the game. Remember, the primary purpose of playing should be entertainment, not to make money. 

Is There a Trick To Winning On Online Slots?

There aren't any specific tricks to winning at online slot machines; there's nothing one can do to change the odds of the game. Ultimately, it is the RNG that determines outcomes and, by extension, if and when wins happen. 

However, there are a few things that you can consider when choosing a slot to play. These include: 

  • Return To Player percentage: Slots with a high RTP generally pay out more over time than slots with a low RTP. Many players prefer high RTP slot games. However, others may prefer slots with lower RTP rates as they are the ones that typically offer jackpot prizes, including progressive jackpots.
  • Volatility: Slots with low volatility may provide smaller but more frequent payouts. If you want a chance to win a larger prize, such as a jackpot, high volatility slots are probably the ones you want to play, although the prizes in these slots tend to be rewarded less often.
  • Slots with bonus features: Slots with bonus features such as extra spins, megaways, or sticky wilds can offer a variety of ways to potentially win. If you unlock one of the bonus features that many slots offer, you could potentially receive better payouts than the ones available in the base game. However, nothing is ever guaranteed.

Do Online Slots Remember What You Won?

Due to the RNG's unpredictability, there's no way for a slot machine to recall your previous winnings or losses. The outcomes are entirely random, with no discernible patterns or sequences. Some players might think they notice patterns, but these are mere coincidences, not signals of an upcoming win. 

Play Online Slots at Slots UK

Whether you're a seasoned gambler or a complete beginner, online slot games are a top choice for their simple yet exciting gameplay and the potential for impressive wins that they offer. Bear in mind the primary purpose of playing should be entertainment, not making money. 

If you're looking for an online casino with a great offering of online slots and casino games that offer the chance to win real money, then Slots UK is what you're after. Click 'Join Now' to begin creating an account. 

Remember that all casino games are games of chance, including slot games, so winning is never guaranteed. Therefore, they should always be played responsibly. It's crucial to set a budget and stick to it, and remember to only bet money you are comfortable losing.