High Volatility Online Slots

Nowadays, software developers are eager to create highly volatile slots, providing players with the opportunity for larger but less frequent wins.

Hacksaw Gaming, in particular, are renowned for their extremely volatile online slot games, with titles like Wanted Dead or A Wild and Cubes. These online slots offer a truly all-or-nothing experience, emphasising a high-risk, high-reward style of gameplay.

Other Top Online Slots

Whilst those are the most common themes for online slots, UK players have endless options - from Dinosaurs to Dragons, Sci-Fi to Sweets or Vampires to Vikings. No matter your preference, there is almost certainly an online slot themed around it.

A few others that rank among the all-time favourite online slots are:

Launched back in 2013, this exquisitely simple slot from NetEnt, is without doubt the most played online slot ever. There isn’t a traditional bonus feature, instead the key to big wins lies in the expanding Starburst wild symbols. These wilds remain sticky while triggering one or two more respins, a unique mechanic that has contributed to its enduring popularity.

Themed around the Yukon trail, Bonanza was responsible for a flurry of similar themed slots - all of which were literally trying to jump on the gold rush bandwagon. Smooth gameplay is accompanied by a chirpy soundtrack and plenty of ‘yee-haws’ when you land a big win on this BTG slot.

"Along with The Goonies, I don’t think there is any other slot that can pull me in with such a dramatic intro. While the unlimited free spins bonus round with huge multipliers is exciting enough, the base game alone can deliver some unbelievable payouts, including a ‘Mammoth’ win. Expertly crafted by Blueprint Gaming, this Stone Age-themed slot also boasts a high RTP of 96.76%." - Ana

Pragmatic Play built on the success of Sweet Bonanza with this candy and gummy bear-themed slot, featuring an innovative 'Cluster Pays' mechanic. Each win not only clears the screen but also increases the multiplier (up to 128x) and the bonus round awards up to 30 free spins, with unlimited retriggers available. This high-energy game could easily be called ‘Adrenaline Rush’.

Blending Steampunk and Wild West themes, Relax Gaming's hit slot has been so successful that it has spawned two sequels, with all three instalments offering a huge maximum win potential of up to 50,000x your stake. This slot is packed with a huge array of bonus features including Sniper, Collector, Collector-Payer, Necromancer, Shapeshifter, Absorber and Tommy Gun.

All of these top online slots can be played in the UK at: Mr Vegas & MrQ

Top 5 Tips for Playing Online Slots UK

For beginners and seasoned players alike, playing online slots can be an exciting and potentially lucrative pastime. To maximise your enjoyment and improve your chances of winning, here are some key strategies and tips to consider:

1. Understand the Basics: It's good to grasp the basics before you start playing. Understand what paylines, reels and symbols mean. Learn about different types of slots – classic, Megaways, progressive jackpots and more. Also, get familiar with terms like Return to Player (RTP) and Volatility. RTP refers to the percentage of all wagered money a slot machine will pay back to players over time, and Volatility relates to the risk level associated with a particular slot game.

2. Choose the Right Slot: With the vast array of UK slots available, selecting the right one can seem daunting. The key is to find a slot that fits your preferences and playing style. Consider factors like theme, volatility and bonus round options.

3. Utilise Free Spins and Bonuses: Most online slots UK sites offer free spins, bonuses and promotions. These can be a great way to try out a game before risking real money, or to extend your playtime. Always read the terms and conditions associated with any casino bonus, as there can be wagering requirements or other restrictions.

4. Manage your Bankroll: Responsible gaming involves setting a budget for your online slot play and sticking to it. Never wager more than you can afford to lose and consider setting a time limit for your play sessions to prevent getting carried away.

5. Keep it Fun: While we all enjoy daydreaming of spinning a huge payout, I personally rate a slot according to its theme, game mechanics, artwork and the quality of the sound effects - elements that truly enrich the experience of playing slots online. Remember, the primary goal of playing slots is entertainment. Keeping this perspective can help make your online gaming experience more enjoyable.

Recent changes to UK slot regulations were introduced by the UK Gambling Commission (UKGC) to promote responsible gambling among online slot players.

They included the elimination of features that could speed up play or give the illusion of control over the outcome.

Quick Spin and Auto-Play features are no longer permitted, aimed at ensuring slots players stayed engaged and mindful of their spending on each spin.

The UKGC also now prohibits Bonus Buy-ins or Feature Buys for UK slots players. These options allowed players to purchase immediate access to a game's bonus features, potentially encouraging excessive spending.

The goal behind eliminating these features is to reduce the risk of slots players losing money quickly and impulsively. When playing online slots, UK players are encouraged to do so responsibly and within their means.

Alternative Payment Methods

As the online gambling industry has expanded and improved over recent years, so have the banking options that are available to customers. It used to be that bank cards were the only way to deposit and withdraw from your betting accounts but now, there are often dozens of options ranging from e-wallets and pre-paid cards to even cryptocurrency.

Many new betting sites look for a USP to make them stand out from the more established bookies and one way that they can do that is by offering a greater selection of banking options to appeal to more customers.

Getting your money quickly after a withdrawal is also a huge bonus and some new betting sites offer Fast Funds which allows customers who are withdrawing to a Visa debit card to receive their funds in their bank account almost instantly.

New Betting Markets & Features

Technology in sport has dramatically improved in recent years and now there is data available for practically anything that happens in a sporting event. In football, every inch that a player moves is recorded along with the tackles they make, their shots with each part of their body, the yards they cover and much more. All of this data allows bookmakers to calculate the odds of new betting markets and allow customers to bet on them. Many new bookies have fresh and exciting betting markets available which attract new customers and sets them apart from the other brands.

Along with new markets, some newly launched betting sites offer additional betting features. For example, Parimatch was launched in 2020 and is popular with horse racing punters with their ‘Lengthen The Odds’ feature being one of the reasons why. Lengthen The Odds allows customers to back a horse but also the winning distance if they’d like to increase the odds of their bet. New betting features such as this one can prove to be very popular and a reason to try out a new bookie.

New Mobile Betting Sites

The vast majority of online bets are now placed using mobile devices such as smartphones and tablets. Punters are betting more and more when on the move and so sports betting sites have had to adapt by making their websites mobile friendly.

Unfortunately, not all mobile betting sites are as user-friendly as others with some being slow to load and difficult to navigate on small screens. However, some bookies have done a great job of making their websites mobile-friendly and many offer dedicated mobile betting apps that eliminate the need to manually log in or type the web address into the browser.

If you’re looking for the best mobile betting sites, we’ve listed our favourites below.

1. Bet £10 Get £20 2. Any bet can be boosted 3. Good mobile app

Kwiff T&Cs. New customers & 18+ only. Min. deposit of £/€10. Qualifying real money bet of £/€10. Min odds greater than or equal to 1.5 required. E/W bets excluded. Offer credited within 48 hours. Full T&Cs apply.

1. Bet £10 Get £20 2. Bet on a range of sports 3. Great app & mobile website

LiveScore Bet T&Cs. *New members. £10 min deposit & bet on sportsbook, placed & settled at 1.5 min odds within 14 days of sign-up. Win part of E/W bets. 2 non-withdrawable £10 Free Bet Tokens: accept in 7 days, valid for 7 days from crediting (ex. E/Ws & Multiples), stakes not returned. Click here for Rules & Exclusions. Bet Responsibly. BeGambleAware.org #ad

1. Refund up to £25 2. Mobile app 3. Mobile-responsive website

BetGoodwin T&Cs. 18+. New accounts only. Must have a min. of 3 bets of £10 at odds of evens (2.0). Full T&Cs apply. Begambleaware.org

New UK Betting Sites Quick Find Select Bookmaker

With so many online slots available, our slots experts are here to help you find the best slots games and UK slot sites to play them at.

This comprehensive guide to online slots will show you how to play, plus introduce the various types of slots, including game features, mechanics and themes.

Here at WhichBookie, we like to keep you up to date on everything betting related, including bringing you the latest bookmakers and casinos when they are launched. New betting sites pop up throughout the year with some being able to compete with the more established brands and others not. This is the main issue when betting with new bookies & casinos in that you don’t know which ones are reputable and will be around in the future. This page will not only list some of the best new betting sites to have launched in the past few years, but we also share our expert opinion on them in our detailed bookmaker reviews.

Below, you’ll find lists of new bookies, new online casinos and some handy tips and advice on which ones to sign up with.

Types of Online Slots

The earliest online slots in the UK were quite simple, typically featuring five reels with three rows. The very first online video slot to include a bonus round, known as 'Reel ‘em In’, was introduced in 1996.

Fast forward nearly two decades, and today’s players are greeted with a new generation of casino slots, boasting diverse formats and features.

Unsurprisingly, these slots draw inspiration from traditional pub fruit machines. They typically feature a retro style and are composed of either three or five reels, with basic graphics and sounds.

Reel King is a prime example of a traditional fruit machine slot game that has made the successful transition from pub kiosks to online slot sites.

While NetEnt’s Gonzo’s Quest and Starburst are considered modern-day classics, purists often classify true classic slots as games like IGT’s Da Vinci Diamonds or Barcrest’s Action Bank.

Best Slot Sites for Progressive Jackpots

When it comes to massive jackpots, three online slot sites stand out with their extensive offerings of progressive jackpot pool games.

Mr Vegas offers a huge selection of jackpot slots, with WowPot games like the atmospheric Wheel of Wishes, plus various Mega Moolah jackpot slots. Additionally they feature a large number of Dream Drop progressive slots, with Temple Tumble 2 being our favourite.

Key Features: Three exclusive ‘Wheel of Vegas’ jackpots for slot players and ‘Rainbow Fridays’ weekly cash rewards based on your previous week’s online slots play.

Unibet has an impressive array of over 100 progressive jackpot slot titles. This includes various popular WowPot slots like Sisters of Oz and Mega Moolah games such as Atlantean Treasures. They also offer an impressive variety of Dream Drop progressive jackpot slots, such as the wild-west themed Money Train Origins.

Key Features: An incredibly user-friendly games lobby, plus weekly £10k ‘Lucky Spin Riders’ tournaments on selected slot games.

At BetMGM, you’ll not only find WowPot, Mega Moolah and Dream Drop jackpot slots, but also a selection of Jackpot King progressive jackpot games, such as Funky Pharaoh. They also offer exclusive MGM Millions games including slots favourites such as Starburst and Book of Dead, with a ‘mega’ progressive jackpot currently standing at £22 million.

Key Features: Their exclusive MGM Millions games allow you to play for jackpots on some classic slots which don’t offer progressive jackpots elsewhere.

Our Picks for the Best Online Slot Sites December 2024

While there are hundreds of online slot sites to choose from in the UK, our experts led by Ana Dimitrijevic have handpicked what they consider the best based upon certain criteria:

"My background in software development for online slots has provided me with unique insights into what makes these games both engaging and entertaining. As an avid slots’ player myself, I can also evaluate and appreciate slot games from the player’s perspective, enabling me to understand what captivates fellow slots enthusiasts."