The Best Payout Slots – Play at the Slot Sites with the Highest Payout Percentages

Slots are the most popular type of casino game. They mainly differ by their payout percentage, which is the amount of money the machine will eventually give back to players. In the coming sections, we would like to show you which are the best payout slots on the market, where you can play them and how to take advantage of any other methods to maximise your winnings. Stick with us and take your online casino experience to the next level.
Best Payout Slots: RTP: Progressive Jackpot: Variance: Rating: Software: Play Safely At:
99.00% Yes High
5.00 ★ out of 5
98.90% No High
4.90 ★ out of 5
98.00% No Low-Medium
4.90 ★ out of 5
98.00% No Low
4.90 ★ out of 5
97.87% No Low-Medium
4.90 ★ out of 5
97.80% No High
4.85 ★ out of 5
97.72% No High
4.85 ★ out of 5
Big Time Gaming
97.60% No Medium
4.80 ★ out of 5
97.50% No Low
4.80 ★ out of 5
97.43% No Medium
4.75 ★ out of 5

After viewing our list of the best paying online slots and their statistics, we are very confident that you have already made your choice on which one you would like to try first. What you can expect in the coming paragraphs is even more details surrounding the best payout slots. You will find short reviews of each slot from our table as well as details on how we made these picks. We can show you the British casino sites and the best online casino payouts as wel.

Not only that, but we will also add in a section talking about the best payout slot sites and the fast payout casinos, where you can register. We will show you what the current deposit bonus slots in the UK are as well as how to take advantage of them in order to maximise your rewards.

Top 10 Best Paying Online Slots

Mega Joker

Slot Name Mega Joker
RTP 99.00%
Theme Classic
Progressive Jackpot Yes
Paylines 5
Bonus Round Yes

As one of the most successful creations of the software developer NetEnt, Mega Joker is a true classic example of a slot. It features a retro theme style with classic gameplay featuring fruit machine style symbols and a progressive jackpot. This is the king of our best payout slots ranking with a staggering 99% RTP. For more details, you can refer to our Mega Joker slot review.

Jackpot 6000

Slot Name Jackpot 6000
RTP 98.90%
Theme Classic
Progressive Jackpot Yes
Paylines 5
Bonus Round No

This is yet another classic slot game featuring a retro theme. Jackpot 6000 is developed by NetEnt and it has 5 paylines and an excellent progressive jackpot. The simple rules, addictive gameplay and high payouts make this slot one of the top favourites amongst players. Unfortunately, it doesn’t feature a bonus round.

Blood Suckers

Slot Name Blood Suckers
RTP 98.00%
Theme Vampires
Progressive Jackpot No
Paylines 25
Bonus Round Yes

This is a vampire slot created by NetEnt, which took the market by storm since its release. Blood Suckers is maybe the most popular title in the best payout slots online casinos. It features 25 paylines, very high RTP at 98% and a bonus round. Next-gen graphics, sound design and fluid gameplay are what set this slot apart from the competition, even though it doesn’t feature a progressive jackpot.


Slot Name Starmania
RTP 97.87%
Theme Celestial
Progressive Jackpot No
Paylines 10
Bonus Round No

Do you like arcade games? Well if the answer is yes, then this title will be right up your alley. Starmania is a celestial themed arcade slot. It boasts excellent graphics and unique sound design that go well with the thematic. Starmania is a 5-reel and 10 payline slot featuring stacked wilds, a gambling function and, of course, free spins! While it doesn’t have a jackpot or bonus rounds, the spins feature more than make up for that.

Kings of Chicago

Slot Name Kings Of Chicago
RTP 97.80%
Theme Card
Progressive Jackpot No
Paylines 5
Bonus Round No

Kings of Chicago is another entry from our bet payout slots list that has been developed by the igaming industry goliath – NetEnt. It features a unique twist on the way you play the game with the help for a 5×3 reel design and instead of symbols, you have cards. Instead of lining up symbols, you combine the cards into poker hands, which bring different payouts depending on the strength of the hand.

Devil’s Delight

Slot Name Devil’s Delight
RTP 97.60%
Theme Supernatural
Progressive Jackpot No
Paylines 20
Bonus Round Yes

Welcome to Hell, or at least a way more fun version of it. It is another very popular video slot by NetEnt, which has a supernatural thematic featuring the Grim Reaper and even the Devil himself. It has 20 paylines and you can trigger a bonus game with extra spins by helping the reaper gather enough souls though the mechanics programmed within. Enjoy the devilish free games and expanding wilds with Devil’s Delight slot.


Slot Name Simsalabim
RTP 97.50%
Theme Magic
Progressive Jackpot No
Paylines 25
Bonus Round Yes

NetEnt seems to be very dominant in our listing but that’s the result of a dedicated developer focusing on publishing quality games that are very fun and rewarding at the same time. Simsalabim is a magic themed slot game that features 25 paylines and a bonus round. If you land three or more of the magic symbols, you will trigger the bonus round. On top of that, landing a combination of 3 or more scatter symbols will reward you with free spins.

Couch Potato

Slot Name Couch Potato
RTP 97.43%
Theme Classic
Progressive Jackpot No
Paylines 1
Bonus Round No

Couch Potato is a famous retro themed classic slot developed by Microgaming. Just like Jackpot 6000, the rules are simple and so is the gameplay without sacrificing from the fun factor. This single payline slot features a multiplier wild, which upon landing can increase your rewards multiplier to up to 25 times.

Alchemist’s Lab

Slot Name Alchemist’s Lab
RTP 97.32%
Theme Mystical
Progressive Jackpot No
Paylines 1
Bonus Round Yes

A mystical laboratory and magical potions. This is the theme that is given to Alchemist’s Lab by its developer – Playtech. This magical slot has great payout potential, even though it features just a single payline. You can expect a maximum reward of up to 10,000 coins as well as triggering the pick and win bonus game, which will further increase your bank.

Steam Tower

Slot Name Steam Tower
RTP 97.00%
Theme Steampunk
Progressive Jackpot No
Paylines 15
Bonus Round No

The last entry in our best paying online slots is Steam Tower, which is made by NetEnt. This steampunk-themed title offers 15 paylines as well as a handy quick spin feature. You can enjoy high multipliers, free spins, stacked wilds and large amounts of fun during your gameplay. Steam Tower also offers great bet flexibility with the lowest being at £0.15 and a maximum of up to £150. As this is the last title from the developer on our list, if you like their style, you can take a peek at the top 10 NetEnt slots.

Recognising The Best Payout Slots

In this section, we would like to elaborate more on what was our criteria that we took under consideration while making this article. The main variable that we emphasised on while creating the best payout slots list was the Return to Player (RTP) percentage. This is the sole factor that decides your chances of winning. The percentage that you see beside the title just shows what the house edge is. This is how much money the casino keeps. For more information, you can check out our Slot RTP guide.

Of course, we took other factors into consideration as well, such as the quality of the game itself. Another thing is the availability of the slot. There are cases of games that have very high RTP but are available in only a few online casinos. Additionally, the entries from our top list have all been tested by our team and we can vouch for their quality and great rewards. You might’ve noticed that one developer is dominant in our rankings. This is because they bring the perfect slot formula to the market and we have made a list of the best NetEnt casinos in the UK in order to assist our readers.

Take Advantage of Bonuses While Playing

If you would like to increase your rewards even more, except for playing the best payout slots online, then you should take advantage of promotions at casinos. What we are mainly talking about is the welcome bonus offers that almost all operators have. With this, you can join a new casino of your choice and use the bonus funds to kick-start your journey. Bear in mind that terms and conditions are essential, and some of the most favourable ones can be seen at the top-rated PayPal casinos.

Below, you will find the table with the operators that offer the best online casino slots payouts and are among the best real money slots sites. Along with them, we will list their welcome bonus offers, which is the lowest amount of money you need to deposit to claim them, payment methods and even the wagering requirements.

Real Money Slot Sites Slots Bonus Payment Methods Wagering Requirements Rating: Secure Link:
Up to £1,000 Welcome Bonus Skrill, Neteller 70x
4.90 ★ out of 5 18+, New Players Only. 1st Deposit - Match Bonus up to 400€. 2nd / 3rd Deposit - Match Bonus up to 300€. New customers only. Min deposit 10€. 50x wagering. Terms Apply.
Bet £10 Get £70 As Bonus PayPal, PaysafeCard 60x
4.80 ★ out of 5 Full T&Cs apply. 18+, New customers. Opt in. £70 bonus = 2x £20 and 3x £10 bonuses for selected games, up to 40x wagering. Bonuses expire in 7 days. Max Redeemable £1,750. Paypal & Card Payments only. Wager £10 on selected games within 7 days of registration. Geo Restrictions.
Up to £250 Welcome Bonus PayPal, ecoPayz 50x
4.80 ★ out of 5 Full T&Cs apply. United Kingdom - *New customers only. Opt-in required. 100% Match Bonus up to £50 on 1st deposit of £10+. 50x bonus wagering applies as do weighting requirements. Debit Card & PayPal deposits only. This offer is valid for 7 days from your new account being registered. Irregular gameplay may invalidate your bonus.
Up to 50 Free Spins On 1st Deposit PayPal, PaysafeCard None
4.80 ★ out of 5 Full T&Cs apply. 18+. First deposit only. 50 Free Spins on the Book of Dead slot. Min deposit £10. Excl. new players in N.I. Each Free Spin valued at 10p. OJO’s Rewards and Game Play policy applies.
Up to £400 +100 Spins PayPal, Neteller 35x
4.75 ★ out of 5 Click for full T&C’s. Free spins - no deposit required & new players only. Claim within 3 days of registration & 3 day expiry. Free spins worth £0.10 each on Book of Dead, winnings paid as cash. Deposit offers available across any two deposits. Both expire 7 days after registration & have 7 days to wager once claimed. Deposit £10, £25 or £50+ & wager 35x for a cash reward. Only cash stakes qualify & wagering contributions vary. 5 free spins on Book of Dead with each qualifying deposit, 3 day expiry.
200% Up to £60 Code: BCSUK Skrill, PayPal 48x
4.75 ★ out of 5 Full T&Cs apply. 18+. New UK customers only. Code "OCUK" must be used on registration form to get the bonus. 200% deposit bonus up to £60: Min deposit £20 and 48x wagering requirements apply on bonus (game weighting applies). £3 max bet applies when playing with an active bonus. Bonus expires if not claimed within 7 days. T’s and c’s apply. Please gamble responsibly,
Up to £200 +10 Spins Skrill, PayPal 30x
4.70 ★ out of 5 Full T&Cs apply. 18+. *New players, £10+ deposit, no e-wallets/prepaid cards, 50x wagering on Vegas Free Spins, 40x wagering on Casino Free Spins.
100% Up to £300 +100 Spins Skrill, PayPal 35x
4.70 ★ out of 5 Full T&Cs apply. 18+. New players only. Valid for 15 days after 1st deposit, Min Deposit £20. Max Bonus Bet £5. Winnings from spins capped at £50. First 100 Zee spins: 10/day. Spins must be used within 24 hours. Funds within 30 days. Bonus funds are separated to Cashe funds, and are subject to 35 wagering (bonus + cash).
Up to £100 +£88 Free Play Neteller, PayPal 30x
4.60 ★ out of 5 Full T&Cs apply. 18+ No Deposit Offer : New players only • £88 is granted in FreePlay (FP) • FP must be claimed within 48 hrs of receiving the email and expires after 14 days • FP wins are credited as bonus and capped at £15, exc. JP win • Deposit Bonus Offer: £20 min deposit • 100% up to £100 Bonus • Bonus wins are capped at £500 • To withdraw bonus & related wins, wager 30 x (bonus amount) within 90 days • Restrictions apply to deposit until wagering requirement fulfilled • Wagering req. vary by game • This offer may not be combined with any other offer • Withdrawal restrictions & full T&Cs apply: No Deposit Offer terms & Deposit Bonus Offer terms.
Up to £50 Welcome Bonus Neteller, PayPal 40x
4.60 ★ out of 5 Full T&Cs apply. 18+. New players only. Min bet €10 on qualifying games. 40x wager reqs (bonus only) on selected games. Bonus valid for 30 days. Certain deposit types excluded. Bets covering >70% of Roulette table excluded. Contributions to wagering reqs vary by game.

Please keep in mind that in order to withdraw the bonus funds and all winnings that they generated, you need to complete the wagering requirements. This means that you need to place bets on casino games that total a sum of, for example, 30 times the bonus. Different game categories have varying contribution weight, but in the case of slots, 100% of your wagers will count towards the requirements. If you are interested in more casino promotions, you can take a look at the best online slot bonus offers on the market.

Developers of the Best Payout Online Slots in the UK

If you’ve reached thus far, you’ve most likely noticed how dominant NetEnt is in the category of the best online slots payout. As one of the best casino gaming software studios, they have revolutionised online gambling with dozens of outstanding innovations and thrilling products. Take a look at all software developers who found a spot within our rankings.

  • NetEnt – Founded 1996 – Best Payout Online Slots Developer
  • Microgaming – Founded 1994 – Top Online Slot Gaming Portfolio
  • NextGen – Founded 1999 – Great Variety of High RTP Games
  • Big Time Gaming – Founded 2011 – Best Australian Software Provider
  • Barcrest – Founded 1968 – Excellent Payout Casino Products

Within our shortlisted candidates, we have other top-rated software studios who also gifted the UK gambling stage with high RTP slot games. One of them is NextGen gaming studio. With over 80 high-end slots and other amazing products, the Australian tech company is definitely one of the best in the business.


At the end of our guide for the best payout slots, we would like to give you a short overview. If you are a player that would like to maximise their wins while playing on slots, we would recommend sticking to games with at least 97% payout and up. On top of that, we strongly suggest that you take advantage of any promotions that your operator of choice is offering and claiming them. Welcome bonuses are the perfect way to join a new online casino and enjoy your favourite best paying online slots. Don’t miss out on the best UK casino sites if you are looking for the top of the line operator. You can also check which are the top high risk casino offers for UK players and the top low risk casino bonuses in the UK for 2021! Both pages have a lot to offer, keep it in mind!

Frequently Asked Questions

Below, we would like to list the most popular queries that players have towards the best payout slots online. It’s a good idea to go over them before you jump ahead and start playing in order to avoid any future confusion. Of course, don’t forget that the casino staff will be more than happy to assist you with any future queries regarding their respectable platform.

💸 Which are the best payout slots?

The best payout slots, in our professional opinion, are the titles that feature an RTP percentage of at least 97%. There are many slots offered by NetEnt that are above that threshold and are quite popular with the community.

🎩 Which is the top payout casino slot?

According to our criteria, one of the best online casino slots payouts belongs to Mega Joker by NetEnt. It is a great classic slot with retro style gameplay that offer high rewards. Don't forget to watch out for that progressive jackpot as hitting it can change your life.

📜 What criteria make the best payout slots?

The main factor that decides on which title is in the list of best payout slots is the Return to Player percentage. If you would like to know more about RTP, house edge and other features that may affect our choice, check out our best paying online slots criteria overview.

🕹️ How do I pick a good slot game?

It all depends on what your goals and player personality are. If you are looking for the highest chances to win and maximising your rewards, then just go with the example that has the highest RTP. Otherwise, you can pick a title from best payout slots online ranking depending on your preferred style of gameplay.

🎉 Can I play the best paying online slots with bonuses?

Yes, you can claim any promotion at your preferred online casino in order to give yourself a helping hand. The best payout slot sites bonuses feature the well-known welcome offer that is claimable by new players to the platform.

📈 What is the best online slots payout percentage you can get?

During our extensive research, we found that the best online slots payout percentage currently available range from 97.43% to staggering 99%. You can check out the full list of top 10 titles with the highest return-to-player ratio in our blog post.

🧑‍💻Who makes the best payout online slots in the UK?

The undisputed champion of the best payout online slots in the UK is NetEnt. The software giant has dozens of above-average reel games and a staggering 6 extraordinary high RTP ones. Other notable studios include Microgaming, NextGen, and Big Time Gaming.

🏴 What is the best payout slots UK casino?

Finding the best payout slots UK casino strongly depends on your preferences. Some British players are looking for particular free spins feature, while others require progressive jackpots or high betting limits. Luckily, we have something for everyone on our dedicated page.

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