An illustrated slot machine with colorful buttons, surrounded by falling golden coins, representing a vibrant casino atmosphere.

We’ll explain how RTP works in slots and other casino games, and how it differs from volatility. You’ll learn how to spot high RTP games, what influences RTP behind the scenes, and how to use that info to make better choices at the casino.

Key Beats

  • The RTP of any given slot is determined by predictive analytics software based on millions of actions. Over time, the suggested return may be accurate, but it is unlikely to show up during real-time slot play.
  • A return of around 96% is the sweet spot for most online slot games. Less than 95% is considered low, and greater than 97% while rare, is excellent.
  • It’s good for you to understand RTP and volatility, but more important is just to enjoy the game.

What Is RTP?

RTP is an acronym for Return To Player, and is usually represented as a percentage. The figure tells you how much money a casino game is projected to pay back to players over time.

However, it’s not an indication of what you will personally win or lose in a single session. Instead, it’s calculated mathematically based on millions of plays. 

What Is the Difference Between RTP and House Edge?

Essentially, there is no difference. It’s semantics – a different way to say the same thing.

  • If a game has an RTP of 96%, then the house edge is 4%.
  • If a game has a house edge of 5%, then the RTP is 95%.

They’re just two ways of presenting the exact figures from opposite perspectives. RTP is a more player-focused way of expressing how much you might get back over time. 

House edge, on the other hand, is how the casino determines how much of your money it will retain over time. Neither of these percentages is absolute. 

Casinos usually advertise RTP for slots because it is more player-friendly. It is easier for a player to understand that they keep 97% of their bets than it is to comprehend that the casino retains 3% of everything they gamble. 

Does RTP Only Apply to Slots?

The term is generally only applied to slot games as they are the only casino games where the player receives consistent returns. It is also essential to mention that RTP is a theoretical return. It is not a guaranteed outcome every time you play slots online.

Example: Let’s say a slot has an RTP of 96%. That means, in theory, for every $100 wagered on that game, it will return $96 to players and keep $4 as profit for the casino.

The RTP of a slot machine is fundamental. It’s hard-wired into the game’s DNA. From classic three-reel fruit machines to bonus-packed, feature-rich video slots, every game has a predetermined Return to Player percentage.

So What Is the Return to Player in Other Casino Games?

Casinos express RTP for table games in terms of their house edge. There are two reasons for this. The first is that it is possible to assess the results of table games on an hourly basis. The pit boss or manager can simply look into the starting float and calculate a win/loss figure based on how much money has been taken and how many chips remain. 

With slot games, it is different because without opening the machine, the house cannot determine a win/loss figure. If a player is playing that machine, it cannot be opened. Also, casinos try to avoid opening machines unless there is a good reason to do so, so it usually happens at the end of the night. 

The second reason is that the slots’ win and the table games’ win are worked out separately. Machines are, well, machines – they just work – unless they don’t, of course! There is less of a human aspect to slots as there is no dealer, inspector, pit boss, or floor walker involved. For this reason, it is more important to know how much the casino is winning, as human elements will directly influence the outcome. 

So, now you understand that RTP isn’t just for slot players. It applies to every single game on the casino floor. From blackjack and roulette to craps and baccarat, the RTP is baked in.

Difference Between RTP and Volatility

If the RTP of a slot machine is the journey, then volatility is how fast you get there. RTP is only part of the picture. To get to grips with how a game behaves, you also need to understand volatility.

What Is Volatility?

Volatility (also called variance) describes how a slot game pays out, not just how much. It’s about the frequency and size of the wins – one big hit or lots of tiny returns.

There are essentially three volatility types:

  • High volatility slots: These games offer the potential for big wins, but less frequently. Think jackpot games or high-risk, high-reward titles. 
  • Medium volatility slots: These tend to fit in somewhere between the other two and may offer less frequent wins but of a greater value.
  • Low volatility slots: These tend to pay out more often. However, the wins are smaller. Great for stretching your bankroll, your time at the slots, and keeping the action going.

What Are the Key Differences?

  • RTP is the average return over time – a percentage of all wagers returned.
  • Volatility is how that return is delivered – steady trickles or a dramatic flood.

You could have two slots with identical RTPs. However, the player experience would be completely different because of the volatility.

Most Popular Online Slots and Their RTPs

Not all slots are created equal. Online slots offer a much better RTP than their real-world counterparts. There’s no rent to pay, wages, or upkeep.

Of course, you will always play the online slots that appeal to you. It could be features, theme, gameplay, or simply familiarity. But, if you want the best bang for your buck, you should always check out a game’s RTP.

Here are five of the most popular online slots, along with their expected returns:

Slot GameRTPWhat You Should Know
Book of Dead96.21%A high-volatility classic with enormous win potential
Starburst96.09%Super simple, low-volatility – an excellent slot for beginners
Mega JokerUp to 99%Old-school fruit slot with one of the best RTPs
Blood Suckers98%Vampires and value – one of NetEnt’s highest RTPs
Ugga Bugga99.07%Playtech’s hidden gem – the king of high RTP slots

Remember: a high RTP doesn’t guarantee a win, but if you are choosing between a 99% RTP game and one with 88%, the math speaks for itself.

RTP can vary slightly depending on where you play. Check the game info panel or paytable before you spin. Check out these trusted online casinos to find those with clearly listed RTPs.

Factors Influencing RTP in Slots

The RTP of any online slot is calculated based upon millions of spins, including bonus rounds, features, progressive jackpots, and more – anything that will influence the final return is taken into consideration.

Behind the scenes, slot developers fine-tune different elements that affect how wins are delivered. Let’s list some of the key components that influence the return to player:

  • Bonus rounds
  • Slot volatility
  • Game features and symbol distribution
  • Gamble functions
  • Bet size

These features all add to the mix and are fun to play. However, if it’s pure value you want, look for feature-light games with a high RTP.

RTP: Operator Settings

Did you know: most slots come with multiple RTP versions, and online casinos can choose what iteration to offer. This is why the same game might have 96%, 94%, or even 92% RTP, depending on where you play.

Game providers like Play’n GO, Pragmatic Play, NetEnt, and Big Time Gaming often release the same game with several RTP configurations. This gives casino operators flexibility to choose a version that aligns with their business model.

Regulators such as the UK Gambling Commission and the Malta Gaming Authority require complete transparency regarding RTP. Casinos must reveal which version they are offering.

The RTP is usually included in the game’s info panel or T&Cs. Here’s how you can check:

  • Open the slot’s paytable or info/help section. This is where you will usually find the RTP.
  • Compare the same game across different casinos; the RTP % may vary.
  • Check the provider’s website or licensing authority documentation, if available.

Again, always check the game’s info screen or pick online casinos that are upfront about their settings.

Responsible Gambling

RTP, volatility, and jackpots are all part of the fun. However, it’s important to remember that gambling should always be entertainment, not a strategy for making money.

Tools to Help You Play Responsibly

Any reputable online casino will offer players a range of responsible gambling tools designed to help you stay within your comfort zone, including:

  • Deposit Limits: Set daily, weekly, or monthly spending limits.
  • Loss Limits: Keep your spending in check by limiting how much you’re prepared to lose.
  • Time Limits / Reality Checks: Get regular time limit reminders
  • Cool-Off Periods: Take a short break from gambling, no questions asked.
  • Self-Exclusion: You can exclude yourself from gambling for a set period if needed.

These tools are easy to access and confidential. They are there to protect you, not to spoil the fun. 

FAQs

What is RTP in gambling?

RTP stands for Return to Player; it’s the percentage of all money wagered on a game that’s theoretically expected to be paid back to players over time. It helps you understand the game’s long-term value.

What does RTP stand for?

RTP means ‘Return to Player’. It’s a way of indicating how much a casino game is programmed to pay back, on average, to players.

What is a good RTP on a slot machine?

A good RTP is typically 96% or higher. The higher the number, the more value you’re likely to get back in the long run. Wins, however, are never guaranteed.

What does 96% RTP mean?

It means the game is expected to pay back $96 for every $100 wagered, over time, across millions of spins. It’s not a prediction for any one player.

How to find the RTP of a slot machine?

Check the game’s info screen, help section, or paytable. Most reputable casinos also list RTP on their game pages or in the terms.

Paul Cullen
Paul Cullen

Paul started his career in newspaper journalism before exploring the emerging world of online gaming in 1998, joining Intertops in Antigua - the pioneering force behind the first online sportsbook. Since then,...