“Are slot machines rigged?” is a question that can sometimes pop up among gamblers. Especially after a frustrating losing streak. Perhaps it is one of the most controversial conspiracies. It’s a topic with endless heated discussions and many surrounding myths. Which apparently suggests that slot machines are just scams.
Even you may thing that slot machines are just a smart way to drain every last penny from their customer wallet. This is all due to the fact that many claim casinos are in charge of the outcome. But is this just a false accusation or a dark reality? In order to answer this question, we first need to understand what a rigged slot machine means.
First, let’s answer the question how they can rig the slot machine and then we can answer the next question why they will not do it
The meaning of a rigged slot machine is when the casino manipulates in a way to ensure that gamblers lose, beyond the natural house edge. Generally, slot machines function using a Random Number Generator (RNG). This is a an algorithm that guarantees each spin is rand and indepedant from previous spin. In fact, randomness is the part which is all based on pure luck rather than skill.
Are slot machines rigged at casino?
Undoubtedly, to many, this may cause some unsettlement. However, the reality is that rigging slot machines is highly unlikely. Gambling commissions such as the UKGC and NGCB enforce strict rules to ensure fairness. Independent auditing firms like GLI and eCOGRA test slot machines to confirm their randomness.
To paint a clear picture, let’s acknowledge industry statistics. Legal slot machines have an average RTP ranging from 85% to 98%. Which means that, over time, players get back a percentage of their wagers. Meanwhile, the casino profits from the house edge. Since casinos already have a mathematical advantage, they have no reason to resort to cheating.
Online vs Live casinos when it comes to rigged slot machines
In live casinos, they can change the RTP (Return to Player) settings, place low-paying machines in certain areas, and use tricks like “near-miss” programming to keep players playing. This can make it feel like you’re almost winning, which encourages more play. For example, if getting five of the same symbol in a row results in a big win, the casino may frequently show four matching symbols to create the illusion that a win is close—even though this doesn’t actually matter.
These methods are legal but give the casino an advantage.
Online casinos have even more control. They can change RTP remotely, track player behaviour using AI, and limit jackpot payouts to ensure the house wins. This makes it easier for online casinos to adjust the odds and the game experience, which is why some people think they might be rigged.
While online casinos have more control, many licensed ones are still fair. It’s best to stick with trusted and regulated sites to make sure the games are honest.
How casinos can “legally” rig slot machines?
Casinos can theoretically rig machines in two ways – legally and illegally. You heard it right – legally, even though we need to understand how casinos can legally rig the machines.
The illegal way would involve messing with the Random Number Generator (RNG), faking Return-to-Player (RTP) percentages, or even creating payout cycles that would make winning impossible. All of the illegal activities listed would be outright fraud, which is a complete violation of gambling laws.
However, casinos can legally influence slot machines in ways that may seem unfair. They can adjust the RTP (Return to Player) rate, lowering it to give the casino an advantage. They also use psychological tricks, like flashing lights and sounds, to make players feel like they’re close to winning. Near-misses, where the symbols almost line up, can make players believe their luck will change, encouraging them to keep playing. While these methods are legal, they keep the odds in favour of the casino, making it harder for players to win.
Let’s break down and dig deeper into the ways casinos can legally influence slot machines!
Adjusting RTP to Favour the House
Casinos can claim to have 96% RTP rate, but in actual configuration it be a different number, for example, 88%. What does this mean for the player? This means for the player, that every $100 put in a casino, he will get back $88 instead of $96.
Controlling the Random Number Generator (RNG) Legally
Casinos cannot directly control the outcome of each spin on a slot machine, but they can legally adjust certain settings in the Random Number Generator (RNG) to make games more profitable. One way they do this is by using weighted reels, where jackpot symbols appear less often, making big wins much rarer. They can also adjust volatility settings, making it harder for players to hit large payouts.
Some games even use adaptive algorithms, which can legally shorten winning streaks if a player has won too much. While the RNG ensures that results are random, these adjustments allow casinos to influence how often and how much players win, all while staying within legal boundaries.
Using Near-Miss Programming to Keep Players Hooked
Casinos use near-miss programming as a psychological trick to keep players engaged.
While this method doesn’t change the actual odds of winning, it creates the sense that players are constantly “close” to hitting a big jackpot.
The software can be designed so that losing spins appear as near-wins, giving players a false sense of hope. It puts them in a illusion as if they are going to win.
For example, a player might see two jackpot symbols line up, with the third one just barely missing, even though the result was already determined by the RNG. Studies show that near-misses activate the same part of the brain as actual wins, making players more likely to keep gambling in hopes of finally hitting the jackpot.
4. Progressive Jackpot Manipulation

Progressive slot machines offer massive jackpots, but casinos set specific conditions for that. Hence, this greatly reduces a player’s chances of winning. One common tactic is requiring players to bet the maximum amount. This is due to qualify for the jackpot, meaning casual players betting lower amounts contribute to the prize pool but can never win it.
Casinos can also legally restrict jackpots from hitting until a certain amount is reached. And even program machines to pay out only at specific times. In some cases, the casino may even play the machine themselves to claim the jackpot before customers do. While these rules are usually mentioned in the terms and conditions, most players remain unaware. Which leads to unrealistic expectations about their chances of winning big.
Are gas station slot machines rigged?
Gas station slot machines, like other slot machines, are regulated by gaming authorities to ensure fairness. In many places, these machines must meet specific standards and undergo regular inspections to ensure they aren’t rigged. However, the odds are always in favor of the house, meaning the machine is designed to make money for the business operating it over time.
In some cases, the machines might be less regulated or not as tightly controlled as those found in casinos, which can lead to concerns. But overall, they are generally not “rigged” in an unfair way, though the payout rates might be lower compared to those in a casino
Penalties for rigged slot machines
For every action that is against the law there are consequences. In this case, if a licensed casino gets busted rigging slot machines they will face penalties. For example they could face loss of operating licenses, multi-million dollar fines, and damage to their reputation.
It’s crucial to understand that shady online casinos may commit unfair practices. They can alter game algorithms in order to reduce payouts or even denying and delaying withdrawals. To add on, operating without a proper encryption to protect player data can be a possibility too.
From time to time some notable cases occur, involving an unlicensed online platform that refused to payout winnings, and citing fabricated terms and conditions. To avoid such cases, it’s vital for players to verify a casinos licensing, check for third-party certifications from organisations like eCOGRA or GLI, and read player reviews before engaging in online gambling.
Make sure to play in regulated places that are controlled under malta regulations.