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Why Slot Return to Player (RTP) Rates Differ Between Online Casinos

How can the same slot, with the same design, symbols, and paylines, offer a different payout percentage depending on where you play it? We’re here to help you get to the bottom of it.

Updated Nov 7th, 2024
Why RTP Rates Differ Between Casinos Online
Why RTP Rates Differ Between Casinos Online
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If you’ve ever compared slot games between different online casinos, you might have noticed something curious: the Return to Player (RTP) rate for the same slot can sometimes vary.

Understanding why RTP rates differ across casinos can help you make more informed decisions about where and how to play. Because when you see the same slot game offering a different RTP at different casinos, it raises questions about fairness and consistency.

Let’s explore the factors that influence these differences and why you might see variations in RTP from one casino to another.

What Is RTP, and Why Does It Matter?

Before we dive into why RTP rates vary, let’s first clarify what RTP actually means.

Return to Player is a percentage that represents how much a slot machine is designed to pay back to players over a long period of time.

For example, if a slot has an RTP of 96%, it means that, on average, for every $100 wagered, the game will return $96 to players.

It’s important to remember that RTP is calculated over millions of spins and is a theoretical figure.

This doesn’t mean you’ll get back exactly 96% of what you wager during a single session — it just gives an idea of the game’s payout potential over time.

RTP is crucial because it gives you insight into how favourable a slot game might be in the long run. Online casino games with higher RTPs are generally more attractive to players because they’re theoretically more rewarding.

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Why Do RTP Rates Differ?

You might expect that slot RTPs would be the same across the board since slot developers set these percentages during the design process. However, several factors contribute to why RTP rates can vary from one casino to another.

Here are the most common reasons:

1. Game Versions and Customization Options

One of the biggest reasons for RTP differences lies in the way game providers offer their slot titles to online casinos.  Many slot developers create multiple versions of the same game, each with a different RTP setting.

When a casino licenses a game, they may have the option to choose from these versions, allowing them to decide which RTP rate they want to offer their players.

It’s then up to the casino sites to choose which version they want to implement on their platform. Some casinos opt for the higher RTP versions to attract more players, while others might choose lower RTP versions to improve their profit margins.

This is why you might see the same slot game listed with a 94% RTP at one casino and 96% at another.

2. Licensing and Regulatory Requirements

RTP rates can also be influenced by the country or region where the casino is licensed. Different jurisdictions have varying regulations around gambling and payout percentages.

In some regions, regulators set minimum RTP requirements that casinos must meet. For instance, certain European countries, such as the UK Gambling Commission, might require online casinos to offer slots with a minimum RTP of 90% or higher, while other regions may not impose such strict guidelines.

Because of these regulations, casinos licensed in different jurisdictions may offer varying RTP rates, even for the same game. If a casino is licensed in a region with more lenient regulations, it might offer slots with lower RTP rates. On the other hand, casinos licensed in highly regulated markets may be required to provide higher RTP rates to meet local legal standards.

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3. Casino Strategy and Target Audience

Each online casino has its own business strategy and target audience, which can influence the RTP rates they choose to offer. Some casinos prioritize attracting high-volume players by offering a higher payout percentage. In these cases, the casino may be willing to accept a smaller house edge in exchange for the potential of drawing in more regular, loyal players.

Other casinos might focus on maximising profits from each game, which could lead them to offer games with lower RTP rates. These casinos rely more on the volume of players rather than offering the most player-friendly payouts.

Ultimately, casinos are businesses, and they make decisions based on what they believe will be most profitable for their specific market.

A casino with a more casual player base might prioritise flashy features and bonuses over high RTP rates, while a gambling site catering to seasoned players may emphasise better payout percentages.

4. Exclusive Partnerships and Custom Games

Some casinos work directly with game developers to create exclusive or customised branded slot games, like the Gates of LeoVegas 1000 slot and MGM Grand Gamble slot. These exclusive versions can have unique features, including customised RTP rates.

In these cases, you might find that the RTP for a specific game is different from what you see at other casinos because it was specifically tailored for that platform.

Additionally, others may negotiate exclusive deals with developers that allow them to offer certain games with higher or lower RTP rates, making their versions of the game slightly different from the standard version you might find elsewhere.

5. Promotions, Bonuses, and Jackpots slots

Another factor that can indirectly affect RTP rates is the way a casino structures its promotions and bonuses. Some may compensate for lower RTP rates by offering frequent casino bonuses, free spins, or loyalty rewards.

This can make up for a slightly lower payout percentage in the eyes of players because the casino is offering additional value through other avenues.

Similarly, progressive jackpot slots may have lower base RTPs because a portion of each wager contributes to the growing jackpot.

However, the appeal of winning a life-changing jackpot might offset the lower regular payouts for some players.

So, if a casino offers a lot of progressive jackpot games, you might see lower RTP rates for these specific slots compared to standard games.

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How to Find the Best RTP Slots for You

So, now that you know why RTP rates can differ, how can you ensure you’re getting the best deal when you play slots online?

  • Do Your Research: Check the RTP rates for the slots you enjoy at different casinos. Many casinos list the RTP in the game’s description or on their FAQ page. If it’s not listed, the Paytable is the next place to go, and if that fails, a quick online search can usually tell you what the game’s typical RTP is and help you compare it across platforms. We post the RTP on all our slot reviews searches.
  • Choose Reputable Casinos: Look for casinos that are licensed and regulated by well-known authorities. These casinos are more likely to offer fair games with competitive RTP rates, as they must adhere to strict guidelines and undergo regular audits.
  • Focus on High RTP Slots: If maximising your payout potential is a priority, look for games with high RTP rates (typically 96% or higher). While this won’t guarantee a win, it does mean that, on average, these games return more to players over time.
  • Consider the Whole Experience: RTP isn’t everything. Some casinos might offer slightly lower RTP games but make up for it with generous bonuses, exciting features, or a high volatility that lets you win eye watering amounts – look at Tombstones No Mercy slot. If that’ too much for you play on the original Tombstone slot which has a higher RTP but lower volatility and payout. Find a balance that works for you.
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RTP Matters—But It’s Not the Only Factor

While the RTP of a slot game is an essential factor to consider, it’s not the only thing that determines your overall experience.

RTP rates differ between casinos for a variety of reasons, including customisation options, licensing regulations, and casino strategy.

Knowing why these differences exist can help you make smarter choices about where to play and how to get the most value from your gaming sessions.

In the end, finding a casino with fair RTP rates, enjoyable games, and promotions that suit your style is the key to maximizing your slot-playing fun. Happy spinning!

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