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Do Slot Machines Know Who Is Playing?

Do Slot Machines Know Who Is Playing?

Contrary to the belief of some online slots gamers, slot machines don't have any way of identifying who is playing them.

This misconception is rooted in the idea that the machines can somehow favour long-time players or those who may have won big in the past. However, this couldn't be further from the truth.

The mechanisms of regulated UK slot machines are typically based on sophisticated algorithms called Random Number Generators (RNGs). These RNGs work continuously to generate a sequence of random numbers that determine the outcome of every spin. 

This means that every spin is independent, making it impossible for the machine to predict or remember who is playing or what their past performance was.

Random Number Generators: The Heart of Slot Machines

Nearly all regulated slot machines are entirely dependent on RNGs. These complex computer programs generate thousands of number sequences every millisecond. When a player presses the spin button, the RNG uses the most recent number in the sequence to decide the outcome of the game.

This outcome is entirely random and is not influenced by any previous spins or the player's history. Therefore, the machine has no knowledge or memory of who is playing or their past performance.

Do Slot Machines Have Cameras or Use Facial Recognition?

The belief that slot machines use cameras or facial recognition technology to monitor or favour certain players is another common myth. However, the reality is that slot machines do not use any form of surveillance hardware.

Some casinos may employ facial recognition technology as a security measure, but this is generally used to identify potential criminals or banned individuals. It has no influence on the gameplay or outcomes of slot machines.

The Myth of Surveillance Hardware in Slot Machines

Over time, a widespread myth has evolved suggesting that slot machines have cameras inside them or use facial recognition to identify and potentially reward high rollers or loyal players. This is not the case.

While casinos usually have extensive surveillance systems, these are focused on the overall security of the casino rather than individual machines. Slot machines themselves do not have any form of surveillance hardware, and the outcomes of the games they host are determined solely by RNGs.

Do Players Cards Affect Slot Machines?

Another common question among gamblers is whether using a player's card can influence the outcomes of a slot machine. The answer is a resounding no. Player’s cards have no impact on the game results.

The primary function of a player’s card is usually to track the player's gaming activity for the purpose of determining eligibility for various casino perks and possible rewards. They don't interfere with the RNGs that control the slot machines.

The Role of Players Cards in Casinos

Player’s cards can serve a crucial purpose in casinos. For example, they allow casinos to monitor the gaming activity of their patrons, which is useful for a variety of reasons. 

This data can help casinos detect potential fraudulent behaviour, such as money laundering, and may also be used to offer players personalised promotions and rewards.

However, the insertion of a player's card into a slot machine does not alter the RNG's operation or the outcomes of the game.

Does Someone Control Slot Machines?

The idea that someone, whether a casino employee or a remote operator, can control slot machines is another common myth among many casino patrons. However, this notion is fundamentally incorrect.

Regulated slot machines are governed by RNGs, which are impervious to external manipulation. Every spin on a slot machine is a standalone event, and its outcome is determined solely by the RNG, without any human intervention.

The Uncontrollable Nature of Slot Machines

Contrary to some beliefs, casinos do not have the ability to control slot machines remotely. These devices are designed and programmed by manufacturers, and once they are delivered to casinos, their operation is sealed and tamper-proof.

Casinos are responsible for maintaining the machines and ensuring they operate correctly, but they have no control over the outcomes of the games. Any attempt to tamper with the machines would not only be illegal but would also likely result in the malfunctioning of the device.

How Do Slot Machines Decide Who Wins?

The principle of RNGs is again central to this question. As previously explained, RNGs generate a sequence of random numbers that determine the outcome of each spin. This means that the decision of who wins on a slot machine is entirely random.

In essence, there is no decision-making process or favouritism involved. The outcome of each spin is independent of the previous or following spins, and each player has the same chance of potentially winning or losing on each spin.

The Unpredictability of Slot Machine Wins

It is important to remember that slot machines are games of chance. Their outcomes are unpredictable, and there is no way to influence or predict them. Some players may believe that they can identify patterns or use ‘strategies’ to increase their chances of winning, but these beliefs are misguided.

Slot machines are designed to be fun and entertaining. While winning can certainly be an exciting part of the experience, it should not be the primary motivation for playing. Always remember to play responsibly.


In conclusion, slot machines are complex devices governed by RNGs, ensuring fair and random outcomes for all players. They do not have the capacity to recognise players, nor are they influenced by player’s cards. 

There are no cameras or facial recognition technology within the machines, and they are not under the control of casinos or any external entities.

These machines are designed to offer an entertaining gaming experience where each spin is an independent event. The outcomes are unpredictable, and winning is not guaranteed. Therefore, it's important to play responsibly and for enjoyment, rather than trying to predict or influence the outcomes.

*All values (Bet Levels, Maximum Wins etc.) mentioned in relation to these games are subject to change at any time. Game features mentioned may not be available in some jurisdictions.