It seems like you are curious to learn what exactly are high RTP slots and how you can employ them to gain more chances of winnings.
Well, High RTP slots are games that allow players to make more money over a period of time.
For example, Blood Suckers has an average RTP of 98 percent, which is why it ranks among the best-paying slots by the developer of this world-class game (Source: AL.com, 2025).
This means that such a game is more prone to pay out than other games.
In this blog, I’ll explain how high RTP slots work, why they are that thrilling, and how you can turn these games to your advantage.
Keep reading to learn how to boost your chances and have more fun with the action.
What are High RTP Slots?
Every slot game has a Return to Player (RTP) rate, which indicates the amount of money that one is likely to win over a period of time; it will range between 80% and 98%.
If you want to know the actual RTP, you will have to play the game noting that for medium or high-volatility games, this is likely to be true.
The RTP is set with the development of the game and remains constant across all online casino sites.
For example, when you play Book of Dead across different casinos, the RTP offered is the same.
Bodies such as eCOGRA supervise gaming developers to verify that the RTP calculated is accurate.
AI tools have helped streamline these kinds of tasks and provide better validation over recent years.
The average RTP for slots is between 94% and 97%, and in practical terms, this means that for every £100 wagered on the game, players can expect to win back £94 to £97.
High RTP slots have an RTP of at least 99%, and these slots are very rare because they pay out much better than regular slots do.
Everything else about the slots is the same as regular slots – some have bonus features with free spins, the same big-name developers make them, and players can wager amounts from a few pennies to £100 per spin.
At www.johnslots.com/en/, for example, players can find a detailed list of all of the currently available and popular 99% RTP slots.
Take a look at this graph below representing the 2024 Market Reporta of Slot Machines.
How Do High RTP Slots Work?
It’s not very complicated to understand how High RTP slots work – they function the same way that regular slots do.
It allows you to choose the slot that you want to play and decide how much you want to wager on each spin, and after that, you can begin the gameplay.
The primary difference in how high RTP slots work is that they have a higher rate of paying out.
The other difference with RTP slots is how they impact your general wagering requirements.
Generally, at the casino, along with the bonus, a certain kind of provision is attached, and that’s what is known as a wagering requirement.
This is the number of times you have to bet the bonus amount before it is possible to take any of your winnings from it as cash.
Let’s say for instance you receive a bonus of £100 and its wagering requirement is 35x.
That means you have to place a wager of £100 for twenty times the total value of 35 (or 100 times 35, 3500) before you can cash in winnings obtained with the help of that bonus.
Because of the higher odds offered with high RTP slots, RTP slots actually increase your chances of success in meeting the wagering requirements.
Below, you’ll find some examples of the most popular high RTP slots:
Book of 99
Book of 99 is a Relax Gaming slot with an RTP of 99%, which means it has a high payout rate.
It also has 10 pay lines across 5 reels, and you can bet a minimum of £0.10 and a maximum of £1.00.
Since it is a highly volatile game, wins are rare but they tend to be bigger when they do happen.
Like many of the most popular slots, Book of 99 has an ancient mythology theme, symbols including mystical figures, the Cyclops, and of course, the magical book that gives the game its title.
Three of these book symbols can trigger the free spins bonus round.
Mega Joker
Mega Joker is a perfect choice for nostalgic gamblers as it looks just like a vintage slot machine and has a really retro feel.
It too includes various appealing symbols such as fruits, bells, and a treasure chest, and has an RTP of 99% which makes it an exciting slot game from NetEnt.
As it comprises 5 pay lines and 9 reels, this makes it almost twice as big as many of the other classic slots.
The most exciting feature of Mega Joker is that it’s a progressive jackpot slot that allows every player who plays the game to contribute to the jackpot total.
This approach not only can lead to gigantic jackpots but also will add a fun community element.
Ugga Bugga
Ugga Bugga was created by Playtech, and the maximum cash bet for this game is fifty pounds.
Also, the game has 3 reels and just 10 adequate pay lines, and the RTP value of it turned out to be around 99.07 percent.
Ugga Bugga has an African jungle tribe theme., and some of the symbols are fun, whilst others border on the problematic.
What sets Ugga Bugga apart is that you can have 10 games playing at once, with the reels stacked across each other, filling up your entire screen.
Do You Know? The Clearing House launched the RTP network in 2017 to bring instant payments to the United States.
Conclusions
High RTP slots are a worthwhile type of game for players of all levels as they don’t require any special knowledge or extra investment.
They’re simply a slot that pays out a little bit more than regular slots do, also they are rare enough that it might take some searching to find one, but they’re certainly worth a few plays once you do.
