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Slot Machine RTP Explained: How It Actually Works

By Kendall Jenkins on 2026-03-09 12:56:00

If you’ve never taken the time to really dig into slot machine RTP then you are doing yourself a huge disservice. All this term stands for is return to player percentage on a specific slot game. Some games offer better RTP’s than others which will give you a better chance at winning every 100 spins.

With that said I will cover some of the ins and outs to what makes a slot machine worth playing or not, and what to expect when hunting for the games with a high RTP.

What Is RTP In Slot Machines?

To keep this as simple as possible it’s the percentage you get back on a game over the course of 100 spins. For Example, if your game has a 96% RTP then you could expect to get $96 dollars back on ever $100 spins. The higher this number is the more likely it is to keep most of your money every time you creep up to the one hundred spin mark.

This is all theoretical since some games will also have variance even if the RTP is high. But if you look over the course of millions of spins on a particular game that number will break close to even on whatever the RTP percentage is.

How RTP Is Calculated

This next part is pretty eye opening. Game developers determine RTP during the design process by assigning probabilities to every possible outcome on the reels. Each symbol combination has a specific chance of appearing and a specific payout value. By combining the probability of each outcome with its payout, developers can calculate the game’s expected return over a very large number of spins. The RTP on a game will also change depending on the value you’re using on each spin. For example, if you are betting $5 a spin and switch quickly to $20 the variance and RTP factor will also change for that game.

Games are also simulated millions or even billions of times using computer models. The total amount paid back to players is then divided by the total amount wagered during those simulations. I will give a bigger number for this example, but if let’s say I wagered $1,000,000 during testing and the game returned $960,000 in payouts, the slot would have a 96% RTP.

RTP Doesn’t Guarantee Short-Term Results

So, this is also interesting. A lot of these developers claim that every spin is independent at that these games have no memory whatsoever. This is because of the random number generators that are assigned to each game. However, I find this to be a little misleading at times. If you were able to find a game with a super high RTP it could run extremely hot repeatedly. I’ve seen this in my own results with some games.

But that’s not always the case. Since short term results can either run well or dry it’s important to keep things in perspective. Because we have all had those times where a game is running so well, and then for a few days straight it drains us. I know the feeling, but if you understand the nuisance to all of this it will at least put your mind at ease that the game doesn’t hate you suddenly or something. 

Do Higher RTP Games Pay More?

Absolutely if you are looking over the course of tens or hundreds of thousands of spins. I’ve always found the sweet spot to be anything over 96% on a game. Anything under that is usually a trap to lure players in because the game looks flashy or cool. You can find higher return to player games on Casinostacked.com.

It’s not always common knowledge about the RTP on a game but you can usually look it up online or run a google search to see of the information is public. I prefer to stick to games that are verified with the RTP status otherwise I will typically stay away. Do yourself a favor and always check it before you put any significant of money into that one game. You will thank me later.

Best RTP Strategies

When playing slot machines, choosing games with a higher RTP is one of the simplest ways to improve your long-term chances. All you really need to remember is that RTP represents the percentage of money a slot returns to player’s overtime. While it doesn’t guarantee short-term results, consistently playing games with higher RTP can reduce the casino’s edge. Which can be huge.

One useful strategy is to look for slots with an RTP of 96% or higher. I’ve found many online slots fall into this range, and over thousands of spins they generally return more money to players than lower RTP games. Before playing, check the information or paytable section of the slot, where the RTP is usually listed. If it’s not there just look it up somewhere online. The information is usually public.

Another important factor to consider alongside RTP is volatility. High RTP slots can still have high volatility, meaning wins may come less frequently but could be larger. If you prefer steady gameplay with smaller wins, a medium or low volatility slot may suit you better.

Final Thoughts

The more I’ve played slots over the years I’ve kind of built a habit to check for the return to player percentage. It gives me the best chance to do well on a game over the long term and it’s just a smart way to approach this. Having this information in your pocket will put you ahead of most players who simply impulse play and never give any of this real thought.

With that said, always play games with a 96% or higher RTP and cross check that the number is really online or through the developer’s website. Once verified and you enjoy playing that game I can promise you that some sort of consistency will start to appear the more volume you put into it. Variance is always going to be there but having all this knowledge will only help you in the long run. 

Frequently Asked Questions

Does RTP guarantee I will win money?
No. RTP reflects long-term averages, not short-term results. Because slot machines use random number generators (RNG), each spin is independent. This means you could win or lose regardless of the slot’s RTP during a short playing session.

What is considered a good RTP for slots?
Most online slots fall between 94% and 97% RTP. Many experienced players look for games with 96% RTP or higher, since these slots generally offer a lower house edge compared to lower RTP games.

Where can I find a slot’s RTP?
You can usually find the RTP in the game’s information or help menu. Look for an icon such as “i” or “paytable” inside the slot interface. Some casino websites and slot review sites also list RTP information.

Can casinos change the RTP of a slot?
Some slot games are created with multiple RTP settings. Casinos may choose which version to offer, but once the game is live the RTP cannot be adjusted on the fly.

Is RTP the only thing that matters when choosing a slot?
No. Volatility, bonus features, and jackpot potential also affect the gameplay experience. RTP is important, but it should be considered alongside these other factors when selecting a slot to play.

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