Find the best RTP slots in the UK right here. We’ve compiled and reviewed the highest RTP slots along with some of the best slots sites to play them at.
Top 10 Highest RTP Slots Ranked
| Rank | High RTP Slot | Developer | RTP | Min. Bet | Release Date |
|---|---|---|---|---|---|
| 1 | Ugga Bugga | Playtech | 99.07% | 0.1 | July 2006 |
| 2 | Book of 99 | Relax Gaming | 99% | 0.1 | May 2021 |
| 3 | Mega Joker | NetEnt | 99% | 0.1 | October 2008 |
| 4 | 1429 Uncharted Seas | Thunderkick | 98.06% | 0.1 | August 2019 |
| 5 | Jackpot 20000 | Relax Gaming | 98.67% | 0.1 | November 2015 |
| 6 | Marching Legions | Relax Gaming | 98.12% | 0.1 | July 2020 |
| 7 | Money Cart | Relax Gaming | 98% | 0.1 | July 2021 |
| 8 | Money Cart 2 | Relax Gaming | 98% | 0.1 | July 2022 |
| 9 | Jokerizer | Yggdrasil Gaming | 98% | 0.1 | March 2016 |
| 10 | Blood Suckers | NetEnt | 98% | 0.1 | November 2013 |
Note: RTPs are subject to change.
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Best RTP Slots in the UK Reviewed
In the UK, the average RTP is around 96%. Below is our list of the 10 highest RTP slot games, ranked, reviewed and all with an RTP of 98% or above:
1. Ugga Bugga (99.07% RTP)
Ugga Bugga is a classic jungle-themed slot from Playtech. The game is simple to play with a classic 3x1 format and just 10 fixed paylines. This isn’t a progressive jackpot game, which means you won’t find any free spins or bonus rounds available. That said, it has one of highest RTP slots in the UK with an ultra-high RTP rate of over 99%! Just bear in mind the volatility is low, so you’re more likely to see more frequent but smaller wins.
| Feature | Summary |
|---|---|
| RTP | 99.07% |
| Software | Playtech |
| Reels | 3 |
| Volatility | Low |
| Features | Autoplay |
2. Book of 99 (99% RTP)
Set in Ancient Greece, Book of 99 is an iconic slot from Relax Gaming. The mechanics are fairly standard with five reels and 10 fixed paylines. However, you’ll find a very high 99% RTP - one of the highest of any Relax Gaming slot. The best part? There are also two free spins features where you can win up to 5,000x your stake.
| Feature | Summary |
|---|---|
| RTP | 99% |
| Software | Relax Gaming |
| Reels | 5 |
| Volatility | High |
| Features | Free spins |
3. Mega Joker (99% RTP)
Mega Joker is a much older slot from industry veteran NetEnt. Launched back in 2008, this is a classic fruit machine style game like you’d find at a physical casino. The mechanics are clean and simple, with a standard three row and five payline setup. Though there’s no bonus or free spins round, the main attraction by far is the high 99% RTP rate!
| Feature | Summary |
|---|---|
| RTP | 99% |
| Software | NetEnt |
| Reels | 3 |
| Volatility | Medium-High |
| Features | Autoplay |
4. 1429 Uncharted Seas (98.06% RTP)
1429 Uncharted Seas is an ocean-themed slot game where you explore an old-style map of the seas. The game has a standard 3x5 reel layout and a high 98.06% RTP. The best part of the game is the number of extras you can claim. Three compass symbols gets you 10 free spins, four will get you 20 and five gets you 50. Plus, if you land a winning line with the ship symbol in the middle, you trigger the expanding reels feature.
| Feature | Summary |
|---|---|
| RTP | 98.06% |
| Software | Thunderkick |
| Reels | 5 |
| Volatility | Low |
| Features | Expanding wilds, free spins |
5. Jackpot 20000 (98.67% RTP)
Jackpot 20000 is a classic fruit machine style slot. The game covers symbols including watermelons, oranges, cherries and bells - just like a slot machine at a real casino. The game has a standard 3x3 mechanic and is no frills, with no free spins or bonus rounds. Though it’s a simple game, the above average 98.67% RTP will draw players in looking for an easy game.
| Feature | Summary |
|---|---|
| RTP | 98.67% |
| Software | Relax Gaming |
| Reels | 3 |
| Volatility | Medium |
| Features | Multipliers |
6. Marching Legions (98.12% RTP)
Marching Legions is a fun, Ancient Rome-themed slot that comes with a cartoon style animation. There are five reels and 247 ways to win, paired with a high 98.12% RTP. This isn’t your average slot game - there’s a lot going on with the gameplay. On the right of the reels, you can collect legionnaires that stack to give you re-spins and nudges. There’s also a meter for each respin you collect, which fills to trigger the free spins round. Free spins are then played in waves, like a real Roman army. All in all, it’s a fun, arcade-style slot!
| Feature | Summary |
|---|---|
| RTP | 98.12% |
| Software | Relax Gaming |
| Reels | 5 |
| Volatility | High |
| Features | Respins, free spins |
7. Money Cart (98% RTP)
Money Cart is one the most iconic western slots in the world. Originally a remake of Relax Gaming’s Money Train, Money Cart offers a 5x4 grid and action-packed gameplay. Instead of a traditional pay table, Money Cart has special bonus symbols. Three bonus symbols triggers the respins features, and for each additional symbol, the number of spins resets to 3 and the landed symbols stick. If the entire board is filled then a mega jackpot is awarded!
| Feature | Summary |
|---|---|
| RTP | 98% |
| Software | Relax Gaming |
| Reels | 5 |
| Volatility | High |
| Features | Respins |
8. Money Cart 2 (98% RTP)
Money Cart 2 is the sequel to Money Cart, released in 2021. The game has a similar 5x4 grid with the same graphic style and even the same 98% RTP! Three bonus symbols (gold or silver gears) will trigger the re-spin feature. Each also has a value modifier which multiplies the win totals. For example, the gold gear awards between 2 and 20 x the bet. Though Money Cart 2 has a slightly lower maximum win than the original, this iconic game will still keep anyone wanting a high RTP slot game satisfied.
| Feature | Summary |
|---|---|
| RTP | 98% |
| Software | Relax Gaming |
| Reels | 5 |
| Volatility | High |
| Features | Free spins, re-spins, multipliers |
9. Jokerizer (98% RTP)
At first glance, Jokerizer looks like an old-fashioned fruit machine. However, this five reel and 10 payline slot comes with a few surprises. If you land three joker symbols anywhere on the reels, you’ll trigger a mystery win. And if you line up three jokers horizontally or diagonally, you could win the max. win of 6,000 coins. Plus, you’ll also be given the chance to play the Jokerizer mode, where just two jokers trigger a mystery win! With a nice 98% RTP, this is a fun Yggdrasil Gaming slot that players love.
| Feature | Summary |
|---|---|
| RTP | 98% |
| Software | Yggdrasil Gaming |
| Reels | 5 |
| Volatility | High |
| Features | Mystery wins |
10. Blood Suckers (98% RTP)
Blood Suckers is a dark and eerie vampire slot from NetEnt. The game is a favourite with players and packed with lots of features including a bonus game, free spins and multipliers. If you land three or more scatter symbols you’ll get 10 free spins, which can then re-trigger further free spins. Plus, three bonus symbols unlocks a fun vampire-slaying bonus game. You’ll enter a dark room filled with coffins where you need to use a wooden stake to slay sleeping vampires and get additional coins. It’s a super unique game with a well-developed storyline that players love.
| Feature | Summary |
|---|---|
| RTP | 98% |
| Software | NetEnt |
| Reels | 5 |
| Volatility | Low-Medium |
| Features | Bonus round, free spins, multipliers |
Best Online Casinos for High RTP Slots
Every online casino will have a unique range of slot games and providers. However, there are some slot sites that are better than others. Below are some of the best gaming sites for finding high RTP slots. The likes of Paddy Power and Sky Vegas offer advanced RTP filtering systems, along with sites like BetMGM that offer a range of US-focused RTP games.
| Online Casino | Bonus | Best RTP Game |
|---|---|---|
| Betfair Casino | 50 free spins no wagering, spend £10 get 100 more | Money Cart 2 (98%) |
| Paddy Power Games | 260 free spins when you spend £10 | Samba Soccer (97.3%) |
| Sky Vegas | 50 no deposit free spins, spend £10 get 200 more | Slingo Starburst (96.66%) |
| BetMGM | 100% up to £200 and 100 free spins | Marching Legions (98.12% RTP) |
Sky Vegas
- Huge selection of 2,000+ games
- Generous casino welcome offer
- Trusted UK brand with 20+ years of experience
Paddy Power Casino
- Claim 60 free spins no deposit and no wagering
- No wagering on free spins
- 1-4 hours e-wallets withdrawal time frame
BetMGM Casino
- Reputable online casino with Las Vegas roots
- Over 2,300+ unique casino games to play
- Highly rated app for both iOS and Android
Betfair Casino UK
- Generous 50 free spins no deposit offer
- Spend £10 to claim another 100 free spins
- Reputable, global brand with nearly 20 years’ experience
Best RTP Slots with High Max. Win
When it comes to slot games, it’s key to look at the RTP rate alongside the prize amount. Ideally, you’d want a high RTP slot along with a high maximum win to enhance your win potential. Below are some of the highest RTP slots with equally high max. win rates:
| Rank | Slot Game | RTP | Max. Win |
|---|---|---|---|
| 1 | Blood Suckers | 98% | 20, 521x |
| 2 | Book of 99 | 99% | 12,075x |
| 3 | Marching Legions | 98.12% | 10,000x |
| 4 | Ugga Bugga | 99.07% | 10,000x |
| 5 | Money Cart 2 | 98% | 5,000x |
What Does RTP Mean in Slots?
RTP stands for Return to Player. This is a percentage that shows how much money has been wagered on a slot and how much it has paid back over time. In the UK, every slot game has an RTP that you can check. You can think of it as a type of house edge but for slot games.
However, you should keep in mind that RTP rates aren’t exact. They’re measured over a long period of time and with a big sample size. For example, if a slot has a 95% RTP, it doesn’t mean that you’ll definitely lose 5% of your bankroll in one game. The RTP should be used more as a rough indicator rather than a guarantee.
What Does the UKGC Say?
“Average %RTP is generally measured over 10,000 or 100,000 games for compensated machines and more games than this for random machines, depending on their category. There is no minimum RTP on a gaming machine.” - UK Gambling Commission
How to Find a Slot Game’s RTP Rate
In the UK, you’ll usually find the RTP rate listed for every slot game at an online casino. If in doubt, you’ll be able to find the latest RTP on the software provider’s website - for example, you can search on the NetEnt site to find all information about Blood Suckers. The UKGC requires that this be shown either on the game help screen or in some other screen area within the game. Plus, online software providers are required to monitor the performance of the games they offer – so you’ll be able to find up to date information.
- Log in to your favourite online casino.
- Find a high RTP online slot game.
- Check the slot’s supporting information, including the RTP.
- If in doubt, cross reference with the software provider’s site.
Variable RTP Rates Explained
Though rare, you may sometimes notice that RTP rates aren’t always the same across online casinos. This is because software providers create multiple versions of the game, each with different statistics. The online casino can then pick and choose which game they stock in their game library.
Luckily, in the UK, there’s not too much variance across online casinos. For example, if you look at Money Cart 2 (one of the best RTP online slots) across casinos like Betfair, MrQ and Slots Temple, they all use the standard 98% version. That said, it’s always worth checking the software provider’s site to compare and make sure you’re getting the most value.
Money Cart 2 RTP Compared
| Online Casino | RTP |
|---|---|
| Betfair Casino | 98% |
| Slots Temple | 98% |
| MrQ | 98% |
Pros and Cons of High RTP Slots
| Pros | Cons |
|---|---|
| Higher RTP rates can mean better value over time. | Just like all slots, there’s no guarantee of winning. |
| Potential for big wins if there’s a high max. win amount. | You still need to consider volatility, mechanics and potential payouts. |
| Many high RTP games come from reputable providers | RTP is calculated over millions of spins, so short sessions may not reflect it. |
FAQs
What is a Good RTP in Slots?
A good RTP is usually anything above 96%. Slots with an RTP below 95% are generally less sought after, and games above 97% are considered to be high RTP slot games.
What Slots Have 99% RTP?
99% RTP slots include games like Ugga Bugga (99.07%), Book of 99 (99%) and Mega Joker (99%). However, slots with an RTP of 99% or more are incredible rare and not common at UK casinos.
How Can You Check a High RTP Slot Machine?
Most online casinos will publish the RTP of a slot game before you play. Alternatively, you can check the RTP on the software provider’s website.
Does RTP Matter in Slots?
RTP can be a good indicator of how a slot performs over time, but it doesn’t guarantee a win. Ultimately, every spin is completely random and a win can never be predicted.
Is RTP the Same As Volatility?
RTP and volatility are different. The RTP measures how often a game pays out over a long period of time. The volatility is an indication of risk. A low volatility slot might pay out more frequently but at smaller amounts, while a high volatility might pay out less often but at much bigger amounts.
