How does the online slot algorithm work?

Men sitting in front of slot machines
24th Oct, 2024
Simon Colmenares Author Profile Photo Simon Colmenares

I know that slots are one of the most popular casino games, but have you ever wondered how the algorithm actually works? In some cases, the system feels rigged when it starts pumping out bonuses until you are lured in, and after that no win whatsoever.

Such events will definitely force you to think about how slots actually work, whether is there someone behind the machine that programs it, whether is it overseen by a regulatory body, and other questions.

For those that want the short answer: Slots are based on luck! We are talking about an algorithm that works randomly, and NO nobody is tinkering with it to consume your money.

Additionally, there are some differences when it comes to traditional and online slots in terms of how the algorithm works. Visit here to learn more.

But let’s jump into more detail and find out how the algorithm in slots actually works.

The secret is in the random number generators (RNG)

Have you heard about Random Number Generators (RNGs), well neither had I until I started researching how slots work. Some people might think that it’s all about the cosmic force and destiny when it comes to slot winnings, but in reality, it is pure math and probability.

The RNG is an algorithm that sets a random outcome on every spin. The best thing is that each outcome is totally independent and unconnected from the previous one. So, there is no such thing as a “hot or cold streak” – it’s all just luck.

When designing the slot, each symbol on the reel is given a unique number. Then all the possible combinations are added in an RNG (software) which goes through them blisteringly fast and chooses one totally random.

How does it work? Well, when you hit the spin button, the RNG generates thousands of random outcomes per second. As we mentioned earlier, these numbers correspond with the symbols that appear on the reels. Then it picks one and you see the symbols appear on your screen.

Want to know a little secret? When you hit the spin button, the RNG comes up with an outcome in milliseconds. So, the slow spinning of the reels on your screen is just a gimmick that is designed to improve your user experience and add a bit of anticipation. The software already knows what is the outcome instantly when you hit the spin button.

The Random Number Generator or the software that slots use is completely impossible to predict, which means that there is no strategy that can help you increase your winning chances.

Why is this important?

It ensures fairness. Without RNGs, casinos could manipulate outcomes. But with proper regulation and RNG systems, even the casinos don’t know what will happen next. In short, it’s as fair as a game of luck can get.

Return to player (RTP): The long-term odds

Ever seen the term "RTP" while playing a slot game? It stands for Return to Player, and it’s a fancy way of saying, "What’s your best chance of winning back your money?"

If a game has an RTP of 96%, it means that, over the long term, for every $100 wagered, you could expect to win back $96. But don’t go getting too excited! That RTP percentage doesn’t mean you’ll win back that exact amount in one sitting. These odds play out over millions of spins. So, while you might hit a big win, someone else is losing (or vice versa).

Slots with higher RTP percentages generally give you better long-term odds, but they are still games of chance. You might find a slot with an RTP of 98% or one with a lower 92%. Both can pay out big, but statistically, the higher RTP ones are better bets if you're looking for some longevity in your playtime.

How online slots are regulated

With all these random outcomes, who’s keeping an eye on the casinos? Online slot machines are tightly regulated to ensure fairness. Licensing authorities like the UK Gambling Commission and Malta Gaming Authority oversee the testing and certification of RNGs.

They make sure that casinos can’t mess with the algorithms and manipulate payouts. So, when you're playing a slot on a licensed site, you can be confident that the game's outcomes are fair (even if it feels like the slot must be cheating you sometimes).

Tips for better slot play

While you can’t hack the algorithm (legally, anyway), you can play smarter:

  • Set a budget. Don’t chase losses. Decide how much you’re willing to spend before you start.
  • Look for higher RTP. The higher the RTP, the better your chances in the long run.
  • Choose the right volatility. If you’re low on funds, maybe avoid high-volatility slots that might burn through your balance fast.
  • Take advantage of bonuses. Free spins and deposit bonuses give you more chances to play without risking your own cash right away.

Is it all luck?

Yes and no. While slots are ultimately games of chance, understanding how they work can help you play smarter. Knowing about RNGs, RTPs, and volatility allows you to make more informed decisions about where to place your bets.

You can’t predict when the reels will line up in your favor, but hey, that’s the thrill of it all, right?

24th Oct, 2024
Simon Colmenares