€1000 Welcome Bonus
50 Extra Spins
Get Bonus
T&C's Apply. +18 | Gamble Responsibly
100% up to €400
50 Bonus Spins
Get Bonus
T&C's Apply. +18 | Gamble Responsibly
100% up to €300
50 Bonus Spins
Get Bonus
T&C's Apply. +18 | Gamble Responsibly

Great Casino Sites: The UK's Best Casino Sites

Welcome to Great Casino Sites! Great Casino Sites is an English language portal offering online casino players a place to read about the latest gambling news, find recommended new online casinos from our many unbiased casino reviews, and to help suggest where you can find the best casino bonuses and free spins online.

Overall, we want to point casino customers in the right direction so they have the best  fun and the highest value when playing at online casinos and gambling sites.

Great Casino Sites offers a look at only the best of the best of online gambling sites. If a casino or gambling site isn’t up to our standards, which we'll go into below, then you won’t see them listed here. At all. Have a look at our current recommended casino and slot sites below and also please have a browse around to find the best suited casinos and bonuses for you! 

Great Casino Sites To Try in May 2019

1
18+. T&C's | BeGambleAware®

US Players Not Accepted

200 Bonus Spins

2
18+. T&C's | BeGambleAware®

100% Bonus up to €500

30 Bonus Spins + 2 Reload Bonuses Up to £1000

3
18+. T&C's | BeGambleAware®

Get up to 50 Free Spins on 1st Deposit

** (No wagering free spins & no max win cap!)**

4
18+. T&C's | BeGambleAware®

US Players Not Accepted

100 Bonus Spins

5
18+. T&C's | BeGambleAware®

US Players Not Accepted

100 Extra Spins

6
18+. T&C's | BeGambleAware®

100% up to €400

50 Bonus Spins

7
18+. T&C's | BeGambleAware®

100% up to £50

50 Starburst Wish Spins

8
18+. T&C's | BeGambleAware®

100% up to €500

50 Free Spins

9
18+. T&C's | BeGambleAware®

100% up to €300

50 Bonus Spins

10

18+. T&C Apply


Bonus up to £200

100 Extra Spins

11
18+. T&C's | BeGambleAware®

Match Deposit Bonus up to €998

11 Free Spins on Registration + 100 Extra Spins on Desposits

12
18+. T&C's | BeGambleAware®

Deposit £10 & Get 10 Free Spins on The 5 Ninjas

***24 hour access to free bingo tickets***

13
18+. T&C's | BeGambleAware®

100% up to €500

50 Bonus Spins

14
18+. T&C's | BeGambleAware®

200% up to $700

20 Bonus Spins on Registration

New eligible UK players only. Select Casino offer on sign-up and deposit. 4 deposits of £10, £20, £50, £100 matched with a bonus cash offer of same value (14 day expiry). 35x real money cash wagering (within 30 days) on eligible games before bonus cash is credited. Spins credited upon deposits; under £50 =10 Spins, £50 or over =25 Spins; on Book of Dead only (3 day expiry, winnings paid in cash). Play Responsibly. 18+ begambleaware.org. Click for full T&C's above.

What Makes a Casino Site, a "Great" Casino Site?

Well, we are lad you asked! By definition, a great casino site really does depend on personal taste. There are many online casinos and new slot sites out there, each offering the casino player a different experience to the next.

When we say experience, we mean theme of the casino: one casino might be glitzy and glamorous, and the next might be cartoon themed and ultra-modern using gimmicks and gamification to enhance the experience in less traditional ways.

Picking out a casino on this basis, really comes down to your own preferences, and as long as you know the casino site in which you choose to play at is 100% trusted, reputable, safe and secure, then the last thing you need to be sure about is that the bonus they offer you is the best you can get, as getting value for your deposits is very important as well.

We believe all of the casinos and gambling sites we recommend on our Great Casino Sites portal are all of these things put together. They’re safe, have long standing reputations, offer the best casino bonuses, whether that means some free spins no deposit, or high roller deposit bonuses. We recommend casino sites suitable for all types of casino players, there's something for every one on our pages, so have a look to see what new casino site you can find.

How Do We Know What Casinos Can Be Trusted?

We believe that this all comes down to years of experience! The team here at Great Casino Sites have been gambling online since the word go, originally starting in playing online poker and then ventured onto online casino games and slots when they first sprung on the scene. 

During this time and since then, we’ve also worked in the iGaming industry as well, so we like to believe that we’ve seen both sides of the equation, and know our stuff when it comes to casino licenses, reputable iGaming companies and where the best places to bet are.

There are many other factors of course, that we take into consideration when we review online casinos. We go into this in more detail in our Best Online Casino page, but take our word for it: all of the casinos you see listed and recommended on Great Casino Sites have been tried and tested by us ( and perhaps we even play there regularly!) and they all offer the best online casino experience, including safety and top customer service too.

Check Out Some of our Great Casinos Above!

Have a look at some casinos above and see if any take your fancy. Maybe you’re looking for some modern casinos with a fun rewards program? Or perhaps you;re looking for the latest free spins bonuses? Or perhaps you love classic online casinos because they make you feel like you’re in Las Vegas? Whatever you’re looking for, hopefully Great Casino Sites can help you in finding the next best casino to play at. And the rest then, is up to you.