The Top 10 UK Online Casino Bonuses of 2020

If you've been searching for top online casino bonuses in the UK, you're in the right place. Our chart provides you with rankings, ratings and reviews based on our research and industry expertise, along with bonus information, to help you compare and find the best online casino for you.

All sites are UK Licenced Secure & Trusted Fast Withdrawals

Advertising Disclosure

This site is a free online resource that strives to offer helpful content and comparison features to its visitors. Please be advised that the operator of this site accepts advertising compensation from companies that appear on the site, and such compensation impacts the location and order in which the companies (and/or their products) are presented, and in some cases may also impact the rating that is assigned to them. To the extent that ratings appear on this site, such rating is determined by our subjective opinion and based on a methodology that aggregates our analysis of brand market share and reputation, each brand's conversion rates, compensation paid to us and general consumer interest. Company listings on this page DO NOT imply endorsement. We do not feature all providers on the market. Except as expressly set forth in our Terms of Use, all representations and warranties regarding the information presented on this page are disclaimed. The information, including pricing, which appears on this site is subject to change at any time.

star-emptystar-halfstar-filled
casino site
welcome bonus
user rating
our score
visit site
Exclusive Offer
32red
150% Bonus up to £150
+25 Super Spins
18+. BeGambleAware.org. New customers only. Min. £10 depo...18+. BeGambleAware.org. New customers only. Min. £10 deposit, debit card only. Up to 50x wagering, game contributions vary, max. stake applies, 7 day expiry. Full T&C's apply. View full terms & conditions
Rate It! (5342)
Read Review
9.8
Great Promotion
sky-casino
Join & Spend £10
Get a £60 Bonus
18+. New customers only. Opt in required. Min £10 staking...18+. New customers only. Opt in required. Min £10 staking requirement applies. Max bonus £60 with a x40 wagering requirement, to which table & card games contribute 20%. 30 day bonus expiry period applies. Staking rules apply. Eligibility restrictions apply. Further Ts&Cs apply View full terms & conditions
Rate It! (4932)
Read Review
9.4
Hot and Trending
888
200% Bonus up to £300
+25 Free Spins
1st deposit only • £20 min deposit with code • Wager depo...1st deposit only • £20 min deposit with code • Wager deposit x20 in 21 days • 50x wagering – req. vary by game - in 21 days • UK only - deposit balance is available for withdrawal at any time • Withdrawal terms & T&Cs apply.View full terms & conditions
Rate It! (5238)
Read Review
9.2
Exclusive Offer
sky-vegas
Bet £5, Get 250 Free Spins
New Customers Only. Opt In Required. 7 Day Free Spin Expi...New Customers Only. Opt In Required. 7 Day Free Spin Expiry. All Free Spins Will Auto Play On First Eligible Game Loaded. £10 Staking Requirement Must Be Met Within 30 Days Of Opt In. Eligibility Restrictions Apply. 18+. Further T&cs Apply.View full terms & conditions
Rate It! (2045)
Read Review
8.9
mansion
10% Cashback
+£500 Welcome Package
New customers only. 18+
T&Cs and wagering requirement...
New customers only. 18+
T&Cs and wagering requirements apply.
View full terms & conditions
Rate It! (4209)
Read Review
8.7
party-casino
Deposit £10, Get 120 Free Spins
New customers only. 18+
T&Cs and wagering requirement...
New customers only. 18+
T&Cs and wagering requirements apply.
View full terms & conditions
Rate It! (1242)
Read Review
8.7
poker-stars
Bet £10, Get 50 Free Spins
18+ only. Newly registered, age and KYC-verified PokerSta...18+ only. Newly registered, age and KYC-verified PokerStars Casino players only. 7 day Free Spin expiry. 30 days from opt-in to meet $10 staking requirement. Only valid on Tomb of Ra Slot.View full terms & conditions
Rate It! (5142)
Read Review
8.5
virgin
Play £10, Get £10
+30 Free Spins
New customers only. 18+
T&Cs and wagering requirement...
New customers only. 18+
T&Cs and wagering requirements apply.
View full terms & conditions
Rate It! (5343)
Read Review
8.3
mr-green
100% up to £50
+50 Free Spins
Opt in required. New customers only. 1x per customer. Min...Opt in required. New customers only. 1x per customer. Min. £20 deposit. 1st deposit only. Selected games only. Max. Bonus £50 35x wagering and 50 Free Spins at £0.10/spin on Lucky Mr Green 35x Wagering. Free Spins credited once deposit amount has been wagered. Bonus and Free Spins expire 7 days after issue. Game weighting, game, country, currency, player restrictions and terms apply.View full terms & conditions
Rate It! (1232)
Read Review
8.2
casinocom
100% Bonus up to £100
+10% Cashback
New customers only. 18+
T&Cs and wagering requirement...
New customers only. 18+
T&Cs and wagering requirements apply.
View full terms & conditions
Rate It! (4453)
Read Review
8.2
Top Slots Sites of {year}
Top Slots Sites of 2020
star-emptystar-halfstar-filled
slots site
welcome bonus
slots games
user rating
our score
visit site
Exclusive Offer
32red
200% Bonus up to £200
+25 Super Spins
18+. BeGambleAware.org. New customers only. Min. £10 depo...18+. BeGambleAware.org. New customers only. Min. £10 deposit, debit card only. Up to 50x wagering, game contributions vary, max. stake applies, 7 day expiry. Full T&C's apply.View full terms & conditions
Mega Moolah
Mega Moolah
Mega Moolah

Mega Moolah

World-famous for a reason, see what all the fuss is about in this African-themed slot.

Get Bonus
Starburst
Starburst
Starburst

Starburst

There's a reason it's one of the most popular slots worldwide, with free spins and bonuses galore.

Get Bonus
Who Wants to be a Millionaire
Who Wants to be a Millionaire
Who Wants to be a Millionaire

Who Wants to be a Millionaire

The popular TV game show from the UK has finally made it onto the slot reels.

Get Bonus
Rate It! (4356)
Read Review
9.8
paddy-power-games
Bet £10, Get 200 Free Spins
Opt In required. You can receive 200 Free Spins on Daily ...Opt In required. You can receive 200 Free Spins on Daily Jackpots when you register via the code PGCAFF, deposit (in one transaction) and bet £10 on any Daily Jackpot game. Free Spins credited immediately. Free Spins are valued at £0.10 each. Spins expire after 7 days after crediting. T&Cs Apply.View full terms & conditions
Fishin' Frenzy
Fishin' Frenzy
Fishin' Frenzy

Fishin' Frenzy

Put up your 'Out Fishing' sign - the fish are biting at Fishin’ Frenzy. Enjoy favourite features like free spins and autoplay.

Get Bonus
Starburst
Starburst
Starburst

Starburst

There's a reason it's one of the most popular slots worldwide, with free spins and bonuses galore.

Get Bonus
Cleopatra
Cleopatra
Cleopatra

Cleopatra

The legendary Egyptian Queen wants you to win her riches. And you can’t disappoint a Queen, would you?

Get Bonus
Rate It! (4278)
Read Review
9.5
casinocom
10% Cashback
+100% up to £100
New customers only. 18+ T&Cs and wagering requirements ap...New customers only. 18+ T&Cs and wagering requirements apply.View full terms & conditions
Justice League
Justice League
Justice League

Justice League

bla bla

Get Bonus
Avalon
Avalon
Avalon

Avalon

Go back to mediaeval times to meet Arthur and the Lady of the Lake in this gorgeous game.

Get Bonus
Mega Moolah
Mega Moolah
Mega Moolah

Mega Moolah

World-famous for a reason, see what all the fuss is about in this African-themed slot.

Get Bonus
Rate It! (5248)
Read Review
9.3
Top Live Casino Sites of {year}
Top Live Casino Sites of 2020
star-emptystar-halfstar-filled
casino site
welcome bonus
user rating
our score
visit site
Exclusive Offer
32red
150% Bonus up to £150
+25 Super Spins
18+. BeGambleAware.org. New customers only. Min. £10 depo...18+. BeGambleAware.org. New customers only. Min. £10 deposit, debit card only. Up to 50x wagering, game contributions vary, max. stake applies, 7 day expiry. Full T&C's apply. View full terms & conditions
Rate It! (6356)
Read Review
9.8
888
200% Bonus up to £300
+25 Free Spins
1st deposit only • £20 min deposit with code • Wager depo...1st deposit only • £20 min deposit with code • Wager deposit x20 in 21 days • 50x wagering – req. vary by game - in 21 days • UK only - deposit balance is available for withdrawal at any time • Withdrawal terms & T&Cs apply.View full terms & conditions
Rate It! (4625)
Read Review
9.4
virgin
Play £10, Get £10
+30 Free Spins
New customers only. 18+
T&Cs and wagering requirement...
New customers only. 18+
T&Cs and wagering requirements apply.
View full terms & conditions
Rate It! (4301)
Read Review
9.2

FINDING THE BEST UK SLOT SITES

Here, we provide reviews of online slots sites and detail the bonuses that can be won with these games hubs. We hope to help you to compare many sites more quickly and effectively.

WHICH ARE THE BEST ONLINE SLOTS SITES?

While the choice of casino games online has significantly broadened over time, online slots remain especially appealing among these games. The history of slots games at bricks-and-mortar casinos dates back much further than the internet, which nonetheless can greatly enhance game playing.

This is because while the range of slots games available at physical casinos can be limited by the availability and functionality of the machines, online operators do not have to contend with this. Online, bonuses and prizes can be almost limitless.

Hence, even just one site can give you a pleasingly wide choice of experiences. It isn't uncommon to see multiple rows of slots, hidden levels and especially interactive gameplay. However, you can further enrich the experience by being discerning about your choice of site.

As a site's quality remains very much a matter of opinion, it pays to know the right approach for assessing how beneficial any particular one of these sites would be for you specifically.

HOW TO CHOOSE A SLOTS SITE

Here on Top 10 Best Online Casinos, we have reviews of various exciting slots sites. Perusing these reviews is a good starting point.

We take various factors into account when we decide whether to recommend an operator. These factors include...

  • Game variety - As fun as slots can be, you can enjoy them for longer when the types and themes of such games are diverse.
  • Bonuses and promotions - Certain bonuses can be within easier reach depending on exactly how you like to play.
  • Software - A site's slots could come from various software firms or just one high-end developer.
  • Safety and security - We recommend only sites that are overseen by UK governing bodies.
  • Support - We also review the effectiveness of support staff.
  • Payment options - We make a record of the payment methods that a given site will accept.

If you remain indecisive about which provider to opt for, we have a more detailed guide that can help you to clear much of the confusion.

TYPES OF ONLINE SLOTS

  • Free and real money- All sites that we recommend offer chances to freely sample multiple slots games. Games where you deposit - and compete for - real money are called... real money slots.
  • Video - Especially common, these regularly pay out jackpots which, nonetheless, will be relatively small.
  • Jackpot- These games build up "progressive jackpots" by taking small shares of the wagers. As a result, the payouts can be huge.
  • Classic - These games imitate slots that are popular in traditional casinos. As such, they can integrate simple gameplay into a retro interface.
  • 3-reel and 5-reel- 3-reel slots are the more traditional option, although the opportunities to win can be more varied with 5-reel versions.
  • TV-themed- Watch out for games based on popular TV franchises like Game of Thrones.

We have also detailed many other forms of web slots - including 6 reel, 7 reel and 3D varieties.

HOW TO PLAY SLOT MACHINES

The most basic rules for playing slots are that you insert coins before pushing a button to spin the reels. As the reels stop, they could form symbols in a combination that lands you winnings. These symbols have to cover at least one "payline" for a triumphant result.

The word "payline" refers to a line across which a winning combination of symbols must appear on the reels to produce a payout. Depending on the game, there could be only one payline, usually crossing centrally, or multiple lines going in various directions.

As we have previously made clear, the number of reels in a game can vary. It is traditional for a slots game to have 3 reels; this relatively simple arrangement is ideal for beginners. However, more experienced players may consider 5 reel games more exciting due to the extra possibilities.

Whatever your level of experience, you could thoroughly enjoy picking up bonuses - such as extra payouts and free spins - along the way. Such extras could be amassed through, for example, achieving a particular combination of symbols; alternatively, the bonuses could be won more randomly.

SLOTS GLOSSARY

There are various pieces of jargon that, as you play, you could come across but ultimately be confused by. Here are just a few examples of terms and what they mean.

  • Auto play: This is where you have the reels automatically spin a particular number of successive times. You would not have to keep pressing a button or pulling a lever every time you want to spin.
  • Fixed jackpot: No matter when this jackpot is won, it will pay out exactly the same amount.
  • Multiplier: This is a symbol that, when it appears in a winning combination, multiplies the payout brought by that combination.
  • Scatter: - A symbol that, when it appears on an active payline, can bring a win without needing to be in a particular combination. Usually, at least three scatters anywhere in view triggers a payout.

Our site includes a more comprehensive glossary of terms. You can benefit from thoroughly reading this before you start playing any online titles. We also have an ultimate guide to online slots; reading this can appreciably improve your overall grasp of the game.

Trust Top 10 Best Online Casinos to give you all of the information that you need about the leading sites and the different types of slots available to enable you to get the most out of your game playing!