Best RTP Slots To Play With Your Next Casino Bonus
Playing a slot with a high RTP can improve your chances of making a profit.
In this article we list the 10 online slots that currently have the best RTPs in the world. Enjoy!
What Is A Casino Bonus?
A casino bonus is an incentive used by online casinos to encourage new players to sign up and existing ones to keep playing.
In return for creating an account, or making a qualifying deposit, you will receive one of the following bonuses:
- No Deposit Bonuses – You’ll receive either free spins or bonus credits after you create a new account.
- Deposit Bonuses – You will receive either free spins, bonus credits, or both, after making a qualifying deposit.
Both types of bonus allow you to play slot games. In this article we’re going to go over the best slot games to play using either of these casino bonuses.
What Is RTP?
RTP is an acronym for Return To Player.
In short, it is a calculation used to work out the odds of a slot game.
One way of thinking about RTP is that it measures the percentage of the overall stake that will be returned to players over the long-term.
For example, if a slot has an RTP of 96%, the slot will return 96% of all money wagered on the slot – albeit, over an almost infinite number of spins.
It is therefore a long-term measure of a slot’s odds and has little effect on the short-term.
What Is Considered A High RTP?
The boundaries of what’s considered a bad, good and great RTP are fairly well defined:
- Low RTP – An RTP below 95% is generally considered low.
- Average RTP – An RTP between 95 and 98% is considered average or ‘mid-range.’
- High RTP – An RTP above 98% is high and offers seriously great odds.
Top 10 Highest RTP Slots in 2024
Now that we have established what RTP is and how it works, we can get to the slots that have the highest RTP.
If you find a casino bonus eligible on any of the following slots, you have a relatively high chance of winning.
#10 – The Catfather by Pragmatic Play
RTP 98.1%
The Catfather by Pragmatic Play not only has a high RTP, but a low volatility. As we explain later in this article, this makes it one of the best slots to play with a casino bonus.
As well as its game mechanics, players are bound to love the theme, which plays on common tropes from crime movies, such as The Godfather. Personally, we love the free spins round, which also multiplies winnings by 4x.
#9 – Marching Legions by Relax Gaming
RTP 98.12%
Marching Legions by Relax Gaming has a high RTP and a high volatility. In fact, the slot comes with 243 paylines.
Players love Marching Legions for a few reasons. Personally, we’re fans of the soundtrack, with its rich orchestral notes, and its artwork, which we believe resembles a mobile strategy game.
#8 – Dr Jekyll Goes Wild by Scientific Games
RTP 98.2%
Dr Jekyll Goes Wild is a great slot game… if you’re willing to make large bets. This is because the slot has a variable RTP that increases with the more you bet.
To be specific, while the slot has an RTP of 98.2% when you bet over a certain threshold, making low bets can reduce it to around 94.2%. We therefore suggest it only to high-rollers.
#7 – 1429 Uncharted Seas by Thunderkick
RTP 98.6%
The most appealing game mechanics of 1429 Uncharted Seas is its high RTP and its free spins bonus feature, which can credit you with up to 50 in-game free spins!
Yet the real star of the show is its artwork. Its symbols and design is made to resemble medieval cartography, or, for example, a treasure map from a show such as Pirates Of The Caribbean.
#6 – Jackpot 6000 by NetEnt
RTP 98.86%
Coming in at 6th place on our list is Jackpot 6000 by NetEnt. In terms of design, NetEnt has gone for a classic 5-payline, Vegas-style slot with traditional symbols.
For anyone playing with a bonus, Jackpot 6000 may be the ideal slot game to play due to its high RTP and low volatility. It even has a low bet size limit, and therefore may be eligible to play with many casino bonuses!
#5 – Ooh Aah Dracula by Barcrest
RTP 99%
Similar to many slots on this list, Ooh Aah Dracula only has a super-high RTP when you play in high-roller mode. Making large bets boosts the RTP to around 99%.
However, while Dracula will drain you of your blood, Ooh Aah Dracula will drain you of your bank balance, and fast. We only recommend this slot to players with a large bank balance and without a bet size limit.
#4 – Book of 99 by Relax Gaming
RTP 99%
Book of 99 is Relax Gaming’s take on the popular ‘treasure hunter’ theme that is best exemplified by Gonzo’s Quest or Book of Dead – and it doesn’t try to hide that fact.
Its main appeal is its super-high RTP of around 99%, from which it takes its name. Other cool features include its free spins round, which provides you with the potential of winning 5,000x your bet.
#3 – Mega Joker by NetEnt
RTP 99%
Mega Joker is a slot famous for its high RTP. Yet most reviews fail to mention that its RTP is variable, and places anywhere between the very low return of 85.28% and the seriously high return of 99%.
When you consider its variable RTP alongside its high volatility, it would be wise to approach Mega Joker with caution.
Yes, the RTP is high; yes, it is attached to a large progressive jackpot, but to utilize the high RTP you need to make large bets and therefore we only recommend it if you have a large balance.
#2 – Ugga Bugga by Playtech
RTP 99.07%
If you’re looking for the best slot game to play with a casino bonus, Ugga Bugga may be it. Visually, Ugga Bugga may not be the best slot, but its game mechanics are ideal.
Ugga Bugga has a super-high RTP, a low volatility, and a low bet-size, which means you may be able to play it with most casino bonuses. This is a slot we highly recommend.
#1 – Goblins Cave by Playtech
RTP 99.32%
At present, the slot with the highest RTP is Goblin’s Cave by Playtech.
If you are going to play this slot with a casino bonus, please claim a bonus without a bet size limit, as the RTP of this slot can vary significantly between the values of 94.5% and 99.32%, depending on the size of your bet.
Is There An Ideal Slot Game To Play With Casino Bonuses?
Theoretically, yes.
The ideal slot game for casino bonuses has a high RTP and a low volatility.
We will explain why this is the perfect combination after defining what we mean by ‘volatility.’
- Slot Volatility – A way of measuring the ‘risk’ of losing a bet. A high volatility slot poses a high risk you will lose your bet; a low volatility slot presents a low risk.
As we have already established, RTP is a long term measure of a slot’s return. Over the long-term, therefore, your session should start to resemble a trend that mirrors your slot’s RTP.
Volatility is a short-term measure.
Over the short-term, therefore, a low volatility slot presents a low risk of losing a bet. Subsequently, you are more likely to maintain a healthy bonus balance in the short-term, giving you ample opportunity to fulfill the wagering requirements.
When combined, a high RTP and a low volatility account for both the short-term and the long-term, allowing you to maintain a healthy bonus balance, and take advantage of the most desirable odds.
Conclusion
A high RTP does not guarantee that you will win. Indeed, over the short to medium term, it guarantees very little.
Yet to gamble smartly you have to take advantage of every small opportunity that presents itself.
Thus while RTP offers only a little edge over the casino, it is still an edge. And when combined with a meticulous approach to claiming a casino bonus, it may provide you with the added weight that ultimately tips the scales.
Yet, please don’t consider it to be the only thing that matters when claiming a casino bonus.
You should only consider playing a high RTP slot if the slot also:
- Has a low bet size limit.
- Has a non-variable RTP.
- Has a low volatility.
- Is eligible to play with your casino bonus.
- Has a game weighting percentage of 100%.
FAQ
It’s easy! Most software providers advertise the RTP of their slots. Simply enter into Google the name of the slot and the letters “RTP.”
Yes, but the difference it makes is often overstated.
RTP provides a general trend over the long-term – and, the long-term trend isn’t necessarily desirable as there isn’t a single slot game designed to share the majority of its profits with players.
The vast majority of online casino bonuses allow you to play online slot games. Most casino bonuses will credit your account with either bonus credits or free spins. Both of these allow you to play slot games.
Please ensure you check out the eligible games of your bonus before you claim a bonus.
In theory, yes. However, RTP is calculated over an almost infinite number of spins and isn’t a particularly useful measure of any person’s single gambilng session – especially over the short term.
Over the long-term, however, RTP is an accurate reflection of how much you can expect back from a slot game as a percentage of your overall stake. Please bear in mind however that this is over the very long-term.
We consider anything above the average of 96% to be a ‘good’ RTP. This should provide you with a decent chance of winning both with a casino bonus and your own funds.
It depends. Every no deposit bonus comes with a list of eligible games. All no deposit bonuses allow you to play slot games, however you may be limited to a single slot game, or a small handful of slot games.
Please beware that high RTP and high volatility slots tend to be excluded from no deposit bonus offers.
Yes, many of the slots with the ‘highest RTP’ actually have variable RTPs, depending on how much you bet.
The RTP of many of the slots in our list will only demonstrate their advertised RTP when you are making the maximum possible bet on the slot game.
At any of the casinos featured on our Real Money Online Casinos page. All of these casinos have been evaluated to ensure they are of the highest quality.
At most of these casinos you should be able to find one or two of the slots featured in this article.
Mervyn Davids
Chief-in-Editor
Mervyn Davids is the NoDepositDaily.org editor. In his time at the website, he strives for balance and transparency. Davids is focused on providing readers with the most accurate rankings of safe and secure online casinos in the world. He is considered a voice of authority in the field and welcomes your feedback on the NoDepositDaily.org website.
