Best Online Slot Sites - August 2022

The most exciting UK-licensed slot sites in the business.

Best Online Slot Sites UK

Welcome to Best Online Slot Sites UK, your primary source for the most popular online casino game in the business. We’re here to make your life easier by highlighting the best places to play online slots in the UK. Every casino featured on our site has been reviewed and assessed according to a specific set of criteria. In addition, we only include operators that are licensed by the UK Gambling Commission. See below for further information.

How we Review Online UK Slot Sites

When considering the inclusion of a gaming site offering online UK slots , we focus on some of the following areas.

Company History

We always try to provide our visitors some background information about the online UK casinos featured on our site. Things like launch dates, mergers, partnerships and other major developments can offer important insights about an operator and its modus operandi.

Site Design/Responsivity

A casino’s website is its shop window and says a great deal about its operation. Dilapidated, badly-maintained websites should ring alarm bells, irrespective of the industry in which they ply their trade. However, a well-designed site that can operate across multiple devices offers plenty of positive trust signals. This is why we take site design and responsivity so seriously.


Promotions are one of the most competitive areas in the casino industry with operators constantly vying with each other to offer the most generous packages. While this usually spells good news for customers, some offers aren’t quite what they seem, which is why we scour the T&Cs for harsh stipulations and caveats.

Slot Selection

The ability to offer customers a wide range of online casino slots is of course a big advantage. However, we also recognise that not all players want to play blockbuster casino slots. Some like to try their hand at more obscure games that offer a break from the ubiquitous slot titles found across so many websites. Having a balanced collection is therefore pretty important in our eyes.

Cashier Options

As a bare minimum requirement, an online casino should be able to offers its customers traditional payment methods such as VISA and Mastercard. Although these should be enough for most players, we consider it a major plus point if a casino slots provider can also provide online transaction services such as Neteller, Skrill and Trustly. These are particularly useful for the mobile gaming sector, which now accounts for over 50% of global online casino revenue.

Customer Support

In assessing customer support, we pay close attention to the contact options available. Most online UK casinos feature live chat functionality. While this is great for quick resolutions, it is our view that more complicated issues require at least telephone and email support. We also look favourably on casinos which provide an FAQ/help section.

Online UK Slots Guide

Slot games have come along way since their humble 19th century beginnings. The crude mechanical contraptions that once occupied counter-tops and gambling dens have been replaced by state-of-the-art slot machines offering immersive, feature-laden gameplay. Found on the carpeted floors of land-based casino establishments the world-over, slots also dominate the lobbies of online casinos. Most virtual casinos include multiple slot variants. Some of these are as follows:

Classic Slots

Classic slots offer simplified gameplay that usually comprises three to five reels and minimal pay-lines. Reminiscent of traditional one-armed bandits, they offer an affectionate nod to the game’s storied past and often include traditional reel symbols such as sevens, bars and fruit.

Video Slots

Video slots follow the same basic principles of traditional slot games. However, they consist of more reels and up to 1000 pay-lines. Extra bonus games are often included as well as additional symbols such as scatters and wilds. These elements can have a major impact on gameplay, not to mention pay-outs.

Progressive Slots

Progressive slot games offer large jackpots that increase each time the game is played. Linked together across a massive network, they’re played by a massive number of casino gamers and often share the same prize pool. As a result, they’re pay-outs are often life-changing.