Updated Updated: 2024

Highest RTP Slots UK 2024 | Play with Best Odds

RTP gives an estimate of how much the player is expected to win back after a number of bets on slots online. Ideally, the ‘Return to Player’ percentage should be somewhat high to attract more players and provide positive expectations to players. Here are some examples of some slots which have quite a high RTP, developed by different software providers.

Best RTP Games List [UK 2024]

Ugga Bugga | RTP: 99,07%

ugga bugga slot

Created by Playtech back in 2006, its RTP goes as high as 99.07% which is a pretty good deal. Ugga Bugga is situated in a jungle, filled with tropical fruits and tribal masks categorising its reels and rows into 2 groups, each group having 3 reels and 5 rows.

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Mega Joker | RTP: 99%

mega joker slot

With this slot, NetEnt provides us with a 99% Return to Player rate. Its RTP is not the only thing attracting players, its classic slot design and progressive jackpot made it one of the favourite slots machines since being released in 2013.

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Jackpot 6000 | RTP: 98.86%


Another spectacularly classic game coming from NetEnt, offering punters with yet another generous rate of 98.86% and another in-game jackpot.

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1249 Uncharted Seas | RTP: 98.60%

uncharted seas slot

‘1249 Uncharted Seas’: Coming from the up-and-coming software provider, Thunderkick, this slot takes the player far out at sea with the assurance of having a high return to player value of 98.60%. This machine has 5 reels and 3 rows all aiming for a possible number of 25 paylines.

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Esqueleto Explosivo | RTP: 97.60%

esqueleto explosivo

Another game from Thunderkick, exploding to a high RTP value of 97.60%, just like the exploding skeleton heads found within the game.

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Birds on a Wire | RTP: 97.20

birds on a wire

‘Birds on a Wire’ also by Thunderkick, which is adored by many, thanks to its cartoonish and colourful style with an electrifying twist and an RTP of 97.20%.

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What is RTP? Return to Player Explained

RTP is an acronym for ‘Return to Player’ which is essential to notice and consider when using slots machines. This value is calculated over time according to the number of bets the player plays, not according to the wagered amount.

For instance: a player can wager only £10 and still win £80, since slots have RNG technology making them random. Despite their RNG technology, RTP offers a good indication of the chances the player has in order to win.

RTP is basically the opposite of the ‘House Edge’.

SmartphoneGambler mascot

If a game has an RTP of 97%, it makes the House Edge to be 3%. Therefore, it is foreseen that the player would get 97% of the amount that they have wagered.

On the other hand, as fair and of an advantage as this may sound, it does not always work out that way and with good reason. If the player keeps on winning at that rate, then where is the risk of gambling?

Therefore, RTP is considered more of a theoretic concept. When developing a slot game, the creators programme the RTP into the slot.

Each spin is random and determined by a Random Number Generator (RNG). However, they are not truly random, or else there would never be any certainty of winnings and it would only make online gaming sites rich while emptying players’s pockets for nothing.

This is where RTP comes in: built into it is a code which creates the House Edge over an infinite number of spins. Therefore, the more spins the player bets, the closer they are in reaching the RTP percentage and win.

Developers are legally bound to make their RTP information easily accessible to the public before putting their games on the market, Thus, the player can easily find the RTP value of a game of their choice, which will most likely be found in the game’s settings.

The most common value of RTP vary between an average of 94% to 97% with some exceptions which go over or below. Common knowledge shows that the higher the RTP, the higher are the chances of earning a pay-out.

Although, this could also mean that winnings might be quite low. When a slot has an RTP of 95% or less, it does not mean that it is necessarily bad, it could mean that the developers intend to provide greater profits to the player instead of showering them with cheaper frequent winnings.

Factors That Influence RTP

  • The House Edge: the amount of money that the casino or site gets to keep on each machine.

It is the complete opposite of RTP since it is the rest of the percentage that is not returned to the player, hence, it can also be described as the amount of money which the player is certain to lose to the casino.

Therefore, if the house edge is 4%, that would determine the RTP to be 96%, while the casino enjoys the profit of that 4%.

  • Slot Volatility/Variance: indicates the frequency of pay-outs players have the chance for and how high or low that pay-out would be.

Nevertheless, two slots machines may have the same RTP, but one may have a high volatility whilst the other a low volatility.

High Volatility and Low Volatility Slots Explained

High Volatility: When a slots game has high volatility or variance, it means that the chances of a pay-out are slim, but when the player does win, the pay-out would be much bigger than those slots with low volatility.

Needless to say, in cases of high volatility slots, their RTP is usually on the lower side for obvious reasons, for instance a 92%, thus, resulting in a higher house edge.

So, the player can either go big or go home, they can keep betting hoping to win for quite some time before getting any winnings since the machine is storing all the bets to combine them into one big pay-out.

Low Volatility: Slots with low volatility offer players more frequent pay-outs which increases RTP.

Contrary to high volatility slots, these machines are not pooling all of the player’s money to give one huge amount, instead they provide the player with frequent small winnings thus, providing a higher return to player ratio.

Due to the increase in frequency of pay-outs, the players end up receiving low amounts of money if they win. Despite the small amount, it is a good way to go especially for beginner of casual players since it allows players to maintain a balance when betting and lessens the risk of losing all their money.

What Does It Mean To Have A High RTP?

A high RTP has various perspectives, depending on the casino or person. Some people might say that having a high RTP means anything above a 98% rate whilst anything below 94% is considered to be extremely bad.

However, the common variations and understanding of RTP can be categorised in 3 groups:

  1. Poor RTP: 90% – 93.99%
  2. Mid-Range / Acceptable RTP: 93% – 96.99%
  3. Excellent RTP: 97% – 99%

Note: There are very few slots that have a 99.1% – 100% return to player value.

Calculating RTP

While there are gambling commissions and auditing bodies to verify the RTP value which is claimed by the providers, players might still prefer to confirm their own RTP for their individual sessions.

In order to do this, the player needs to collect some information such as their total wagered amount and their total winnings derived from those sessions they want to calculate, including those won with free spins.

The next step would be to divide the total amount of winnings by the amount that was wagered, remove the decimal that it results in and the player can now confirm the RTP of that slot.

For example:

75 spins have been played at 50c each during the session. Therefore, the total amount that has been wagered is £37.50 and the total winnings amounted to £24.

Now all that is left is to divide those winnings by the wagered amount. That being the case, £21 divided by £37.50 equals 0.64 and after removing the decimal, the result comes down to 64 which is the RTP for that session.

RTP Tips

Gambling comes with a lot of risks, which makes it enjoyable for some. However, betting at the risk of losing money is not the only thing players should be concerned about.

Before logging into a casino, or entering personal and financial details, one should do a bit of research on the casino or site they are trusting their information with.

To avoid the risk of being scammed or have their information stolen, one should make sure that their casino is a licensed casino regulated by trusted governmental bodies such as the following well-known confederations:

  • MGA (Malta Gaming Authority)
  • UK Gambling Commission
  • Swedish Gambling Authority

This assures that the player is using a trusted and unambiguous casino.
Using any other unlicensed casinos is not suggested and they are not to be trusted.

More often than not, these casinos offer games that do not confirm their RTP or have a fake RTP value to adjust to a particular market especially those with high tax rates.

With that being said, enjoy playing safely and responsibly!


The RTP refers to Return to Player, which describes the percentage of your bankroll that you might assume to win back.

All game providers are required by law to make the information as accessible as possible to all users.

Most casinos present such information visibly but if you find it difficult to find out a slot’s RTP, make sure you check it with a customer service representative.

Yes. The higher the volatility of a slot is, the less frequent payouts you can expect.

However, once it does payout, you will also notice higher winnings. The rule works likewise the other way round – lower volatility gives you more frequent, yet lower in value payouts.

No. There aren’t any slots that guarantee winnings, mainly because the RTP of these games is always below 100%. However, the higher the RTP is, the better the chances of making a profit you will have when playing the slot.

When a player triggers the jackpot, the slot will have to pay a massive sum of money. For this reason, the game operator will have to put money aside to pay for this user’s windfall.

The slot developer will do so by lowering the RTP and stashing this money which later will be used to cover the prize’s value for the jackpot winner.