Best Online Slots Sites

Available in United Kingdom

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TRUSTED

VERIFIED

Casino

200% Welcome Bonus up to £500 + 50 Free Spins

18+ New Players only. Gamble responsibly. Terms Apply
5
5/5

Casino

120 Free Spins on Starburst Promo Code: WELCOMEBONUS

18+ New Players only. Gamble responsibly. Terms Apply
4.5
4.5/5

Casino

100% Welcome Bonus up to £300 + 100 Zee Spins + 500 Zee Points

18+ New Players only. Gamble responsibly. Terms Apply
4.5
4.5/5

Casino

200% Match Bonus up to £400 + 50 Bonus Spins

18+ New Players only. Gamble responsibly. Terms Apply
4
4/5

Casino

Get up to £250 Casino Slots Bonus with your First Deposit

18+ New Players only. Gamble responsibly. Terms Apply
4
4/5

Casino

Wager £10, Get £90

18+ New Players only. Gamble responsibly. Terms Apply
4
4/5

Casino

100% Bonus on your First Deposit up to £300

18+ New Players only. Gamble responsibly. Terms Apply
5
5/5

Casino

20 Spins on Sign Up + 100% Bonus up to £400 & 100 Free Spins

18+ New Players only. Gamble responsibly. Terms Apply
3.5
3.5/5

Terms and Conditions apply for all bonuses. Must be 18+ to participate.

How do we Review the Best Online Slots Sites?

Gambling.com are industry experts and have years of experiences reviewing the best online slots sites. We love online slots and we know what we’re talking about. We put any site we list here through a rigorous review process and review each one of them against a set of standard industry benchmarks. We look at things like game variety, graphics, bonus offers, mobile experience, payments, sound quality and themes. We also check they are fully licensed and regulated by the UK Gambling Commission. You can be certain that only the best online slots sites make our shortlist.

Online Casino

Rating

UK License Number

Casimba

4.9

Party Casino

4.8

Dream Vegas

4.7

Playzee

4.7

Matchbook

4.6

Dunder

4.5

BetVictor

4.5

LeoVegas

4.5

What to Consider When Choosing the Best Online Slots Sites

There are hundreds to choose from and in this guide, we’ll outline some things to look out for when it comes to the best online slots. We’ll cover what you need to know so that deciding on a site or game is easy for you.

Why Play Slots Online?

The casino floor has atmosphere, energy and the occasional lurker- with it comes queues for popular machines and the constant need to collect change. Online, you’re free to roam between the vast number of games available and enjoy playing UK online slots on your mobile phone if you wish. You’ll also find some of the biggest progressive jackpots around.

What Features Do Online Slot Sites Offer?

The best online casino slots strategy is about choosing the right games and managing how you play. Online casinos have plenty of functions to help you:

Free Play / Practice Play

  • With dozens, if not hundreds of slots available, the chance to try new additions and experiment with your strategy can be a huge bonus. Start out practicing for free to improve your approach.

Free Spins / Loyalty Bonuses

  • Loyalty schemes and special offers are an excellent way to earn free plays. Look out for online casino offers sign-up or member bonuses. The most coveted of casino bonuses are the free spins. Free spins are given to you by the best online slots casinos at no cost to you. They will do this to encourage you to join or to reward you for a long period of playing, thereby making you more loyal to their casino.

Slot Stats

  • For a more rational approach, search casinos for data on average return to player statistics, which show the percentage of bets paid out to players. Individual slot data can often be found on help pages and sometimes monthly payout data is found in independent reports linked to casino footers.

Mobile Casinos

  • Most casinos have mobile sites or apps, but the selection of slots available on these may vary. More and more players are choosing to play on their mobiles so many of the best online slots casinos make sure to make all their popular games available on this platform.

Online Slot Game Variations

One of the most fun things about online slot games is the variety. When choosing an online slot site, make sure you get a good overview of everything on offer so that you get a good feel for what is on offer.

Video Slots

  • The most common form of online slot, these tend to be low-to-medium variance (regular payouts, lower jackpots), have lots of pay lines (plenty of chances to win) and often incorporate animated mini-games, free spin features and pop culture themes.

Jackpot Slots

  • Often linked across multiple casinos, these slots take a small percentage of each wager to make a ‘progressive jackpot’. These slots are normally high variance ( less frequent low-level wins but one of the best online payout slots) and can be less immersive than video slots.

Classic Slots

  • Online imitations of popular casino slots. These tend to have fewer win lines, simpler gameplay and a retro aesthetic. They can be low or high variance.

Software

  • It’s important to be aware of which developer is behind your online casino. Some topnotch casinos offer slots from numerous developers while others are powered by top-end slot makers like NetEnt and have early access or exclusive games. Your choice will depend on whether you appreciate a certain slot style, or if you like to keep your options open.

Unusual Alternatives to Online Slots

One game that has all the excitement and ease-of-use that characterises online slots is video poker. Players place a bet, spin the reels and hope to land a great poker hand. It’s also a great intro into the world of online poker for anyone looking for a test of skill and nerve.

Many online casinos also have a section labelled ‘other games’; these often contain a range of quick-to-play games from online scratchcards to electronic horse racing, where you can play the odds to win a virtual race. These are a great way to expand your gaming repertoire without the rules and strategy barriers of most casino table games.

How to Maximise Your Online Slot Site Experience

One of the most exciting experiences in the online slot world is a tournament: thousands of linked players powering through a pre-determined pot to see who can play through a fixed amount of credits within a set time limit, with huge prizes up for grabs. Mr Green Casino offers frequent tournaments, with a wide range of entry fees for all pot sizes, and other casinos are increasingly getting in on the action. Speed and concentration are key- making the most of all your credits is often not as easy as it sounds.

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