Best UK Slots and Casino Games

Welcome to Labslots. Here we run a ‘lab’ where we put online slot sites and slot machine games under the microscope.

At Labslots, you will find impartial slot reviews and guides that are based on thorough data analysis. If you scroll down you will find our list of  Best UK slot sites. Every casino listed here has been extensively assessed. Our Casino reviews display the Casino’s Welcome Offers and Promotions and other valuable information to show you exactly what to expect from each casino. All the sites listed on Labslots UK have a valid UK licence.

You can view our Casino Top List below and you can also check our advice on what are currently the best online UK slot bonuses!

CasinoRatingBonusKey FeaturesVisit
Expert Review100% bonus up to £100+ 100 extra spins
  • Lots of choice
  • Games can be played in free play mode
  • Vibrant looking casino
Claim 18+, first deposit only. Casino bonus min. dep: £20, max. bonus £800. Bonus winnings wagering requirement: x35. Max bonus bet £4, can vary. T&Cs apply. Read the full terms and conditions here.
All British CasinoExpert Review100% bonus up to £100
  • Huge jackpots on progressives and lottery
  • UKGC and MGA licences
  • 10% wager-free cashback
  • Fast withdrawals
Claim New customers only, min deposit £20, wagering 35x, max bet £5 with bonus funds. Max bonus is 100% up to £100. No max cash out on deposit offers. Welcome bonus excluded for players depositing with Skrill or Neteller. Cashback is cash with no restriction. Full T&C’s apply terms and conditions here.

First time looking for a new slot site?

If this is your first time visiting Labslots then you have lots of fun awaiting you.

It is important to be aware that all of the casino sites we list come with their own terms and conditions. We will help you keep track of the Ts and Cs and will only recommend sites that meet our high standards. Labslots is 100% compliant with the rules and regulations set by the UKGC and promises to keep you within a gambling milieu that is safe and secure.

Looking for a newly launched site to play with? We recommend checking out page on new slot sites.

Testing a site before depositing

We encourage you to test out different sites so that you can gauge which one is right for you. A casino or slot website can look great but the aesthetics are just one thing that you should take notice of. A good casino operator will provide you with a large amount of slot bonuses, like no deposit bonuses and free spins.

They will also have access to various casino payment methods to make it easier for players to deposit money and withdraw winnings. You should also consider whether you prefer a website that has a very large library of online slot games or a smaller library with the more famous slots.

Sign up with more than one casino

You can register for free to all of the sites listed on this page. We also encourage you to let us know if you have had any bad experiences with any of our listed casinos. Our job is to help you find the best place to play online slots after all.

Up-to-date info on all slot operators

Our philosophy is to ensure we are giving out the best and most up-to-date information on the best and newest slot websites online. Labslots prides itself in offering the best information to you about where you can play online slot games and where you can find  the best bonuses.

We make it easy for you to find the latest slot operators as we are constantly adding new casinos to our list of partners. 

Labslots’ Top Three Gambling Tips

  • Register at one or more slot sites – We encourage you to try various websites before making a deposit.
  • Deposit and play with your welcome bonus – Use the first deposit bonus/welcome bonus on each of our slot sites before you decide to stick with one. You do not want to miss out on any great offers.
  • Use the no deposit bonus – Try your luck on a casino that offers a no deposit welcome bonus.

Why We Created Labslots

We created Labslots because we are a team full of old and new slot players with a wealth of experience within the online gambling sector. Naturally, we wanted to develop a zone where we could offer our experience to new casino and slot players.

This site contains everything for people interested in slots. We also offer the most up-to-date information on Megaways slots, Mega Reels and the best Slingo sites.

We pride ourselves on being a friendly online slots guide that can direct you to a pleasurable casino experience.

High RTP Slots in the UK

Although it is not the only reason, one of the main reasons people play slots is to win cash. We are pleased to tell you that we are able to direct you to the sites offering the best paying online slot games.

Slot sites offering the slot games with the highest RTP’s are recommended by us because they will give you the best chance of winning.

Read more about High RTP slots.

Low and High Variance Slots

Nowadays it is simple to find new and old online slot sites offering a mix of high and low variance slots.

High variance slots offer large but irregular payouts.

Low variance slots offer small but regular payouts.

Our players have recommended PlayOJO as a casino offering the largest number of both high and low variance online slots.

The Most Important News on Slot Sites and Slot Games

The Labslots news section provides you with the most up-to-date information on the slots world including slot games, jackpot slots, new slot games and news from the online casino and gambling industry.

Labslots are a source for everything slots related and we aim to provide you with the knowledge you need to become a successful online slot player.

International iGaming licences to look out for

These are the best known iGaming licences that slot sites are using:

  • UKGC – United Kingdom Gambling Commission
  • MGA – Malta Gaming Authority
  • CGL – Curacao Gaming Licence

UK players should always look out for the UKGC logo and gambling licence.

Only The Very Best

The best UK online slot sites will have the following factors:

  • Great welcome offers
  • Reliability
  • Loyalty Bonuses
  • 24/7 Customer Support
  • Large Selection of Slot Games
  • Security

Mobile Slots

We will also bring you the information on the best mobile slot sites. Playing online slots on your mobile phone has never been easier due to the exponential increases in mobile technology over the past two decades. 

The newest casino slot games are made specifically for mobile devices thanks to HTML5 technology. As mobile phone technology improves, the greater the number of casino players decide to switch from their desktops to their mobiles. Mobile slot sites even offer bonuses to players who are specifically signing up via a mobile device.


How can we determine what makes a good slot site?

We check it, we sign up, play on the site, and therefore get first-hand experience of the functionality and business practices of the Casino .

All of the slot operators you will find at Labslots are verified as good and are rated highly by other online slot website guides too. Here are some of the things we look at when we write our reviews.

  • We ensure the site accepts UK players.
  • We register via mobile and desktop to ensure the process is smooth on all devices.
  • We try out the bonuses.
  • We verify whether the slot site has the best slot games.
  • We talk to their customer support team to verify whether they are efficient.
  • If all works well we then compare them to other slot sites in order to decide rankings.

Slot Game Reviews

The Labslots team has played and reviewed hundreds of online slot machine games on your behalf. Our reviews are honest and do not pull any punches.
We give a star rating to each of the games we review. This allows you to pick only the best slots to play.

Frequently Asked Questions About New Slot Sites

A fair and legitimate slot site will always hold a license to operate in the UK with a gaming regulator. You can check whether a slot site has one of these by looking in the footer of every online slot site to find the licencors logo and license number.
Legal slot sites in the UK are those which are licensed by the UK Gambling Commission. Simply head to the bottom of every slot site's home page in order to find a license and license number from the UKGC.
PayPal is available as a banking method for the majority of new slot sites in the United Kingdom.
Skrill is a common banking method across slot sites in the United Kingdom. However, some slot bonuses are excluded when you make a deposit with Skrill.