Best UK Online Slot Sites for 2023

Best UK Slots Sites in 2023 by Category

Detailed Analysis of the Top Online Slots UK Sites

Our team provides a test-based analysis of the top UK slot sites for your personal preferences. We first highlight our top 3 picks, then review the best slot sites for every style of play. Our CEO, Ionut Catalin Marin has applied his +7 years of experience in the UK online casino industry to create a list of slot sites catering to new and seasoned players.

#1 Parimatch Casino: Best online slots UK site for 2023

Parimatch is the best slot site in the UK for every player. Our decision was influenced by its diversity when it comes to slots. If you play mostly jackpots, then this site is perfect for you because it has more than 40 different jackpot titles, and a sizeable variety of high-variance titles.

Why we chose Parimatch Casino

• 200% slots bonus
• £5 min. deposit

Alternatives

If you want a specific payment method to start playing slots, you don’t have that much variety at Parimatch, with only Visa, Mastercard and PayPal eligible. This is where 888 casino and Videoslots can be great alternatives.

#2 PlanetSportBet Casino: Runner-up slot site casino

The choice of PlanetSportBet Casino was driven by the fact that it offers popular slots and providers, and the number of slots available is high. We didn’t rate it to the maximum because it slightly lacks diversity. However, this is among the best mobile slots UK sites you’ll encounter.

Why we chose Megaways Casino

• Vast selection of 3-reel classic slots;
• 85+ Megaways slots;
• Top mobile performance.

Alternatives

Players that are looking for jackpots in particular might not be interested in PlanetSportBet Casino as it offers few progressive jackpots. For this category of players, we recommend Immortal Wins Casino, which offers more than 50 jackpot titles.

#3 Monopoly Casino: Third slot site online in the UK

Relying on our expertise in the industry, we selected Hot Streak Casino for our top new slot site because it is a good all round Casino that offers both diversity and a good number of slots. The platform is online since 2022 and we think that for a Casino this new to provide the high standard that it does is very rare.

Why we chose Monopoly Casino

• 20+ exclusive in-house slots;
• No wagering slots bonuses;
• Instant Apple Pay withdrawals;
• Android and iOS slots apps.

Alternatives

Monopoly Casino might not be the best choice for players that are looking for a good slot site with a low deposit. This is why we recommend Rhino Casino, as it has a 5/5 star rating in games and the lowest minimum deposit of £1.

#4 Vbet Casino: Best for number of online slots

Vbet Casino stood out for us for its extremely large slot catalog. It contains more than 8000 different slots from more than 100 providers, which is why we rated it the best casino for the number of slots. It also has a very low minimum deposit, making it one of the best slot sites for winning with a low investment and high bonus.

Why we chose Vbet Casino

• Vbet has 16x the UK industry average no. of slots;
• 30 fixed jackpot slots available;
• +200 megaways slots;
• 150 slots providers.

Alternatives

In case you’re looking for progressive jackpots, Vbet Casino may not be the best choice. As an alternative, we suggest you take a look at PlayToro. The platform offers over 150 progressive jackpot games and more than 5000 slot games in total, which should fit your needs.

#5 VoodooDreams Casino: Top Netent slots site

Our team of experts picked VoodooDreams Casino for its extended collection of +114 Netent games. In our opinion, this is among the best NetEnt slot sites. It offers a high number of slots and progressive jackpots that are provided by some of the most popular developers of the industry, which adds to diversity.

Why we chose VoodooDreams Casino

• Rare NetEnt slots available, including Blood Suckers;
• You can wager bonuses in NetEnt slots;
• Fast withdrawals with PayPal.

Alternatives

If you’re not satisfied with the thin variety of slots that VoodooDreams Casino offers, then you will surely be excited to find out that Hyper Slots Casino has both Netent games as well as more than 1100 slots you can try.

#6 Grosvenor Casino: Best for Pragmatic Play slots

We went with Grosvenor Casino for its proven catalog of Pragmatic Play slots which is not only vast, it contains the most popular slots available from this provider. The casino offers more than 700 slots from 55 developers which is a great way to impress a gambling expert.

Why we chose Grosvenor Casino

• Low 10x wagering for slots bonuses;
• Upcoming slots providers like Eyecon and Blueprint;
• IGT progressive jackpots available;
• Deposit £20 play with £50 slots bonus.

Alternatives

If you’re the type of player that searches for more diversity, then BetUK is a better choice for you. With more than 80 Pragmatic Play slots and more than 1300 slots available, this website surely counts on quantity.

#7 Pokerstars Casino: Top Microgaming slots site

Pokerstars Casino appealed to us because of its extended slot catalog that offers more than 70 Microgaming slots. In our opinion, the platform does a very good job at making its user interface friendly and intuitive. The games catalog is vast and there are 19 providers available which makes the user feel the diversity.

Why we chose PokerStars Casino

• 120+ exclusive slots;
• Vegas online slots available;
• Innovative 3D slot themes;
• No wagering slots bonuses for new players.

Alternatives

If Pokerstars Casino’s offerings don’t fulfill your expectations, then you can try Videoslots Casino. This site offers more than 130 providers and the opportunity to play over 3900 games amongst which more than 120 come from Microgaming and its partner studios. Enjoy the best slots to play online for real money with a no wagering bonus.

#8 Leovegas Casino: Best for slot types

Leovegas casino caught our attention with its diversity of best-paying online slots in the UK. The platform has over 1300 slots available from more than 30 different providers, which is the reason why the level of diversity is so high.

Why we chose PokerStars Casino

• Advanced slots search feature;
• Every type of slot game available;
• Must-fall jackpot slots available;
• Huge list of mobile slots
• Top new slots suppliers like Iron Dog.

Alternatives

In case you were looking for something different from Leovegas Casino when it comes to diversity, then you should have a look at Megacasino’s slots offering. It might be the right choice for you with more than 2100 slots and more than 45 providers available, and it will surely incorporate the level of diversity that you are looking for.

#9 Virgin Games Casino: Best for progressive jackpots

We were drawn to Virgin Games Casino for its collection of progressive jackpots that shine over the rest of the games. Compared to its UK sister sites in the Gamesys network such as Monopoly Casino, Virgin Games offers more than 28 progressive slots from 6 providers, which is an above-standard value.

Why we chose Virgin Games

• Information feature for each slot;
• Low minimum bet for progressives.

Alternatives

If you’re unsatisfied with Virgin Games Casino’s progressive slots providers, look at the UK’s best online casinos with tens of suppliers. On that page, players will find Lucky VIP Casino, which offers a more extended collection, with progressive slots from Microgaming and NetEnt.

#10 Betfred Casino: Best for classic slots casino games

We opted for Betfred Casino because it offers more than 40 classic slots with popular themes such as fruit slots, egyptian slots and more. The platform makes available over 50 different providers to ensure diversity for players that are looking for it.

Why we chose Betfred Casino

• Features the best classic slot providers: IGT and Microgaming;
• £1 min. withdrawal – ideal for penny slots players.

Alternatives

When Betfred Casino’s number of classic slots doesn’t quite match your expectations, you can always choose ZetBet Casino instead. It has a collection of over 200 classic slots that should cover your needs.

Top 20 UK List of Online Slot Sites: Ranked for 2023

The complete KingCasinoBonus list of slot sites features some of the best online casinos with over 500 slots, high-value welcome bonuses with 100% wagering contribution in slots and quick withdrawals via recommended payment methods:

New Online Slots Sites with No Deposit Bonuses in 2023

Our methodology is simple if you want to know how we ranked the best new slots sites in 2023. Our reviewers and gaming experts were sure to manually test the slots’ no-deposit offers to ensure the gaming products are legit and fair.

Any new casino that hopes to make it needs to cater to slots players. The top 5 listings in our table are some of the newest gaming platforms, each established as early as this year.

Their legality, selection of slots, and slots-related no deposit promotions are the key reasons for recommending these UK slot sites. Each casino has a gallery numbering hundreds, if not thousands, of slots. The only exception is Luck.com Casino, which has 50 slots but more free spins on registration.

Besides the free spins bonuses, all the listed casinos give you a high-value match-up to your deposit. Navigate to all MadSlots bonuses to uncover the best 1st deposit promotion for slots in 2023.

How We Review the Best Real Money Slots Sites UK

Our experienced gaming experts manually analysed each recommended slot site. Our reviewers followed our review criteria about bonus options, specific and general terms of use, responsible gaming, wagering requirements, banking, support, and gaming content.

Slots Casino Real Money Sites’ Security

We considered several variables to determine a slot site’s security other than licensing. For instance, a factor as simple as popularity and reputation can signify reliability.

If an operator has high and positive ratings across several reliable online review platforms and forums, you can take it as an indicator of trustworthiness.

Essential Third-party Game Testing Certificates

Many of our recommended UK slot sites have independent third-party organisations test and evaluate their gaming software to ensure its fairness and functionality. To ensure the gaming quality is tested, we seek approval from eCOGRA, iTech Labs, Gaming Laboratories International (GLI), and similar testing labs.

Slots Variety and Software Provider Trustiness

A wide range of slot games can make it harder to pick a single game but gives you more range and allows you to find a game tailored to your gaming style. We promote only UK slot sites that provide licensed content from industry-leading software providers with a proven track record.

We Test Online Slots Real Money Bonuses Ourselves

• We examine the casino bonus offers and their wagering requirements
• We sign up and claim the bonus with a qualifying deposit or code
• We start wagering on qualifying games
• Once all bonus terms are met, we submit a request for a withdrawal
• Provide withdrawal verification documents (if necessary)
• Wait for the casino to approve the withdrawal and credit the bonus/winnings

We Manually Check Payment Methods

Alongside reviewing the availability of payment methods, we check the efficacy of each payment option. A few of the banking criteria include deposit and withdrawal limits, processing of transactions, and whether the casino or payment service charges any fees. At the very least, a casino should have the following payment methods available to all UK players:

• Visa
• MasterCard
• Boku
• Skrill or Neteller
• Pay by Phone
• Bank Transfer
• Neosurf
• PayPal

Keeping up to Date With the Latest Mobile Gambling Trends

We tasted several slot games in each of the three casinos using an iPhone 14 Pro Max and a Samsung s22, and the games worked exceptionally well, with no lags, crashes, or similar issues, on both devices. Of course, you can even have an older smartphone model and still enjoy optimal game performance.

Our experience has shown that most online casino players in the UK and beyond tend to play on mobile casinos. You should seek the newest mobile casino platforms if you want to play new mobile slots on their release date.

A mobile app is not necessary, but it may appeal to many mobile players.

At the very least, we ensure the slot site is compatible for use on mobile in-browser on all major operating systems: iOS, Windows, and Android. We recommend it only after manually testing a casino’s mobile functionality relating to gaming content, payments, support, security, and user experience.

Online Casino Slots: Sign-up and Bonuses Guide

Below we provide a short player guide on how to navigate between UK slots sites, find the best bonus for your specific slot preferences, sign-up and claim it.

How to choose your best online slots sites to play

1. Choose a licensed operator
2. Pick a casino with proper game filters
3. Pick sites with high RTP slots
4. Look for medium-to-high volatility slots
5. Find a casino with slots from leading providers
6. Check for slot-specific promotions, like free spins
7. It’s preferable for the slots to have demo (fun) mode

How to compare online casino slots bonuses

• Look for UK Slots Sites for No Deposit Free Spins: Use our filter to select sign-up slot bonus rounds with favourable terms.  Note, easy as the bonus terms may seem, you still have a limited amount of time (around 7 days, on average) to satisfy the remainder of the terms before the bonus expires.
• Find Online Real Money Slots Sites with a Free Sign-up Bonus: A casino can award you with a slots no deposit bonus for your active play, if you are a VIP member, or immediately after you create an account. The former case is to be found in any of UK’s casinos with VIP and loyalty programs. You’ll notice each of the no deposit bonuses above are cash bonuses (as opposed to free spins). But specified slot games qualify for each bonus, meaning you can play first-rate slot games and take advantage of the games’ features while redeeming your bonus at the same time.
• Choose UK Slot Sites With a Valuable Welcome Bonus: By value we mean welcome bonuses with fair terms and wagering requirements and acceptable withdrawal and betting limits. Each of the listed sign-up promos meets our criteria. For some offers, like the Barz Casino welcome bonus, the wager terms may seem slightly above average, though the bonus compensates with other favourable conditions.
• Best Source of Online Slots No Wagering Bonuses: For a small deposit of just £10, you can claim a no-wager free spins bonus at many of our listed casino operators, but PlayOJO is renowned for being a no wagering casino all-around.

Should you play with online slots real money free spins?

With free spins for online slots, real money games can become a much better experience, because you have the opportunity to test the online real money slots sites yourself before depositing.

If you choose from our selection of slots no deposit bonus offers, you are ensured to play on secure slot sites with free bonuses on sign-up and explore various slot games by top providers.

How to sign-up at online casino slot websites

1. Read our review and carefully choose your slots site
2. Prioritize independent slots online casinos for unique bonuses
3. Create a new account
4. Go through KYC (Know Your Customer) procedure
5. Verify your account
6. See if you need a deposit to qualify for any bonus
7. See which slot games qualify
8. Examine game weighting (if there are no wager requirements, there’s no need for game weighting)
9. Choose a no-deposit bonus and start playing

Why should you prioritize independent sites? Because with sister sites, there’s a chance you may get excluded from slot bonuses if you claim the same promotion twice or more across the network.

How to claim no deposit bonuses for online slots real money

1. Open the casino website and sign up
2. Verify financial and personal information
3. Agree to casino’s house terms
4. Go to the promotions page and claim no deposit bonus
5. Complete wager terms on free no deposit slots and other qualifying games
6. Don’t go above maximum betting limit
7. Don’t request a withdrawal until the completion of the terms
8. Cashout winnings after satisfying terms with applicable withdrawal method

What is the best time to play online slots at UK sites?

There is no best time to play online real money slots because all games are governed by a Random Number Generator and pay out randomly. That being said, there is no way to uncover when a slot machine will pay other than hacking into the casino providers’ servers and manipulating something there.

The only way to improve your chances in slots is to play responsibly on safe, best-rated slot sites verified by KingCasinoBonus!

Recommended Payment Methods for UK Players

September List of Slot Sites with Low Minimum Deposits

Here is our updated list of minimum deposit slot sites for September 2023, selected

1. VBet Casino – £1 minimum deposit slot site with over 8000 slots
2. Luck.com – best slot site with a £5 minimum deposit and 100 FSND on registration
3. Virgin Games – £10 deposit slot site with £25000 max cashout
4. Madslots – best slots bonuses with a £10 deposit
5. Monopoly Casino – no wagering slots with low deposit
6. BetUK – £10 minimum deposit, slots with no wagering
7. Voodoo Dreams – low deposit spins on Book of Dead

UK players looking for the easiest way to play slots should focus on low minimum deposit casinos. These allow you to spin real money slots starting from just 10p or 20p a spin. Get started with deposits as low as £5 or £10, and get more bang for your buck, stretching even tiny deposits into long slot sessions with bonuses.

Top 10 Best UK Online Slots Real Money Games

The above table lists some of the most popular slot games with some of the best features and top game mechanics.

NetEnt, Play’n GO, Microgaming, Pragmatic Play, and Playtech are the online slot development industry staples. They are known for creating slot games with various themes, including fruity slots, summer slots, and Christmas slots.

Play New Online Casino Slots Released in 2023

The following table lists our favourite new slots released in 2023. If you play at any of our selected new online real money slots sites, you are very likely to find them and grab a no deposit bonus:

Top New PayPal Slot Sites in September

Play on the UK’s brand-new PayPal slot sites selected by KingCasinoBonus. On this list, we give you the best new 2023 slots operators to play NetEnt, Blueprint, Pragmatic and more:

1. Luck.com – Get 100 free no deposit spins on registration
2. Immortal Wins – Up to 500 spins on Microgaming
3. The Rialto – get 50 free spins with low wagering
4. The Vic – new slot site with PayPal and free spins on Lucky Lady’s Charm Deluxe
5. SpinzWin – get 100% bonus
6. Luckster – 200 new slot games
7. Pub Casino – 1100 slots, new 2023 casino

Most of these new slot bonuses can be safely claimed with PayPal on registration!

Best UK Online Slots Providers

Microgaming, NetEnt, Playtech, IGT, and Play’n GO makes almost a complete list of the industry’s most recognisable and most popular providers of slots. Each brand has a rich portfolio of online slots, and with each new release, they at least match, if not surpass, the quality of earlier games.

Their games are well-received by the gaming community for their grand visuals and sounds, but also in-game mechanics and features. Some games, like Honey Rush, deviate from the traditional game layout and provide cluster pays.

How to Play Slots Online Responsibly

1. Choose a game you like based on our slot criteria
2. Review the game carefully
3. Find a casino offering that game
4. Try the game for fun (if possible)
5. Give the game a test run with a small budget (£10-£50)
6. Place small bets
7. Ask a casino support assistant if you can set betting limits
8. Don’t start placing larger bets to compensate for losses
9. Play with a budget that you can afford to lose
10. Set gaming sessions (if possible)
11. Quit while you’re ahead
12. Don’t get carried away

All Slot Sites We Recommend Are Vetted by the UKGC

The UKGC oversees and ensures each operator complies with its Licence Conditions and Codes of Practice (LCCP) to ensure fair and quality gaming, player security, timely payouts, adequate player dispute resolution system, and user privacy protection.

The strict gaming and player protection standards and legal parameters the UK Gambling Commission set forth control every aspect of UK slot sites. Some operators hold multiple licenses, rendering them certified in payment security, account management, and gaming quality.

Our Verdict: What to Expect from Online Slots

KingCasinoBonus have one key principle when playing online slots: approach the games responsibly and avoid chasing your losses, and you’ll have a great time! As experts, we aim to help you understand the random mechanics of online slot machines and the best ways to play them. Slots have low minimum bets and adjustable bet sizes, enabling you to stay within your budget if practised responsibly.

UK players may choose an online UK slot site for the following reasons:

• Custom experience: With a wide variety of themes and features, online slots can satisfy a wide range of UK player preferences;
• Beginner-friendly gambling: New casino players should start with simple games, and online slots are the most straightforward to play;
• 24/7 availability: Compared to their local counterparts, online slots are available 24/7;
• Mobile convenience: As they can be accessed from anywhere, they are very convenient for mobile players;
• New slot releases: Land-based slots are the same in every UK casino, while new online slot games are released every month;
• Engaging special features: Online real money slots possess unique symbols and game features like expanding wilds and progressive jackpots;
• Social ways to play: Online slots UK sites often facilitate social interactions through slot tournaments.

Pros and Cons of Online UK Slots Sites

Pros

• Guaranteed game quality
• UKGC-licensed
• Tailored bonuses for popular slot games
• Quick access to content from leading developers
• Vast choice of gaming content
• Suitable betting limits for casual players
• You can play slots for fun
• Claim personalised bonuses
• Earn points and rewards by simply playing

Cons

• Some casinos don’t offer a mobile app
• There’s a limited number of games on mobile casinos
• Gaming can become addictive

Online Slots UK: Glossary of Terms