Slot machines are some of the most popular games in both physical and online casinos. But one of the most common questions players ask is: “Are slot machines rigged?”
Here we break down how slot machines work, the systems that keep them fair, and how to spot a safe place to play. Whether you’re new to slots or just curious about how online casinos operate, this guide will give you a clear understanding of what’s happening behind the reels.
How Do Slot Machines Work?
Modern slot machines – whether in physical casinos or online – don’t rely on mechanical gears and levers. Instead, they use digital software and Random Number Generators (RNGs) to decide outcomes.
What Is an RNG?
A Random Number Generator is a computer program that produces thousands of number sequences every second. Each number corresponds to a specific reel position and symbol.
Here’s how it works:
- When you press “Spin,” the RNG picks a number sequence at that exact moment.
- That sequence determines where the reels stop.
- Each spin is completely independent of the one before or after it.
This system means no one, not even the casino, can predict or influence your outcome.
Are Online Slots Regulated?
In the UK, online slots must follow strict regulations set by the UK Gambling Commission. These rules are designed to protect players and ensure fair play.
Licensed sites like ours here at 7bet only offer games that have been independently tested and certified by third-party organisations such as eCOGRA or iTech Labs. These agencies audit the RNGs to make sure they’re working properly and delivering random outcomes.
Why Do Some Players Think Slots Are Rigged?
It’s natural to wonder about fairness, especially after a losing streak or when you’re one symbol away from a big win.
Common Misconceptions
- “The game knows when I’m about to win.” False – each spin is random.
- “I always lose right after a big win.” False – This is due to variance, the natural ups and downs in slot outcomes.
- “Online casinos can change the odds anytime.” False – Regulated sites cannot adjust RTPs or RNGs without approval and retesting.
Return to Player (RTP) and Variance
What Is RTP?
RTP is the percentage of total bets a slot is designed to return to players over time. For example, a slot with 96% RTP will theoretically return £96 for every £100 wagered – but only across millions of spins.
What Is Variance?
Variance (or volatility) describes how often and how much a slot pays out.
- Low variance slots offer smaller, frequent wins.
- High variance slots have bigger jackpots but longer dry spells.
Understanding RTP and variance can help set realistic expectations about how online slots behave.
Independent Testing and Audits
Before being released, every online slot goes through certification. Agencies like eCOGRA:
- Test the RNG software for randomness.
- Check that the advertised RTP matches the actual results.
- Audit the game regularly after launch.
This ensures that when you play on regulated sites, the outcomes are fair and not influenced by external factors.
Slot Machines in Live Casino Games
Many live casino games now include slot-style reels and mechanics. These games blend physical elements with RNG software to create a hybrid experience.
At 7bet, you can explore interactive games where real hosts spin wheels or activate bonus rounds, all in real time.
How to Tell If a Slot Machine Is Fair
To make sure you’re playing on a fair slot:
Check for Licensing
Play on regulated platforms like 7bet, licensed by the UK Gambling Commission.
Look for Certification Badges
eCOGRA, iTech Labs, and similar organisations confirm fairness.
Avoid Unlicensed Sites
They may not follow proper standards and could offer unsafe or unfair games.
Understand How Slots Work
Knowing that each spin is independent and random helps manage expectations and avoid misconceptions.
You can check out all the latest slot machine offers in our special offer & bonus promotion page.
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