UK Slot Reviews by Experts and Players | SlotsUK
At SlotsUK, we know that slots have always been a favorite among players, but with the rise of online casinos, they’ve become more diverse and exciting than ever. Whether you’re after high volatility thrills or chasing a life-changing jackpot, there’s a game out there for you.
We keep a close eye on all the latest slot releases, providing in-depth, unbiased reviews to help you discover the best of the best. Our reviews are updated weekly, ensuring you stay ahead in this fast-moving industry. If it’s worth playing, you’ll hear about it here first!
Best Slot Games to Play in 2025
If you compare the top slot games list from a decade ago to today's rankings, one thing stands out—there’s always been a dominant game provider leading the charge.
Back in early 2010's, NetEnt was the undisputed king of slots, delivering hit after hit with iconic releases like Gonzo’s Quest, Twin Spin, and Dead or Alive. Their innovative approach made them a powerhouse in the industry.
Then, around 2016, a new contender emerged—Pragmatic Play. While their early releases didn’t make much of an impact, they quickly hit their stride, and the rest is history. Fast forward to today, and Pragmatic Play holds an incredible 9 out of the top 20 best slot games in the UK, cementing their status as the #1 provider among players.
1. Big Bass Bonanza (Pragmatic Play)
Proving that any theme can be turned into a successful slot with the right touch of creativity, Big Bass Bonanza became the foundation for one of the most popular fishing-themed slot series.
While Reel Time Gaming’s Fishin’ Frenzy was technically the first to introduce the concept, it was Big Bass Bonanza that truly took the spotlight. With clean graphics, immersive sound effects, and engaging gameplay, it quickly became a favorite among players.
The real excitement kicks in during the bonus feature—land 3, 4, or 5 Scatter symbols to trigger 10, 15, or 20 free spins. During these spins, any cash prizes on the reels are collected when the Fisherman Wild symbol appears.
What makes the bonus even more thrilling is the progressive trail system. Every 4 Fisherman Wilds collected retriggers 10 additional free spins with an increasing multiplier, up to 10x, keeping the action exciting and the potential wins even bigger!
2. Starburst (NetEnt)
What more can be said about the most iconic online slot of all time? For many players, NetEnt’s Starburst was their first introduction to the world of online slots, and it remains a fan favorite to this day.
Most top UK casinos include free spins on Starburst in their welcome bonus offers, making it one of the most played slots of all time. Its appeal lies in its simplicity, combined with stunning graphics, smooth animations, and an ethereal soundtrack that creates an immersive experience.
Rather than a complicated bonus round, Starburst Wilds—which appear on reels 2, 3, and 4—are the game’s main feature. When they land, they expand to cover the entire reel and trigger a respin. If another Starburst Wild lands, it expands as well, leading to even bigger win potential.
The reels are filled with colorful gems, but the Red 7s and Gold Bars offer the highest payouts. With 10 fixed paylines paying both ways, it's easy to see why Starburst has remained a top-tier slot for over a decade.
3. Big Bass Splash (Pragmatic Play)
Big Bass Splash follows in the footsteps of Big Bass Bonanza, sticking to the familiar formula but introducing some exciting upgrades.
Right away, you'll notice a fresh new look, with the bearded fisherman now sporting a redneck persona. Instead of a traditional fishing rod, he takes a more explosive approach, using dynamite to blast fish out of the water—while also cruising around in a monster truck for good measure!
Gameplay improvements include the random Bazooka feature and a respin mechanic, which gives you a second chance to hook a third Scatter when only two land.
Once you trigger the bonus round by landing three Scatter symbols, you'll get the chance to boost your free spins with additional perks, such as:
🎣 More Fish – Increased cash prizes on the reels
👨🎣 More Fishermen – More collectors for better wins
➕ +2 Free Spins – Extends your bonus round
🔥 Start at Level 2 – Jump ahead for bigger multipliers
💥 More Dynamite, Hooks & Bazookas – More ways to land wins
The more of these modifiers you collect, the bigger and better your bonus round will be!
4. Gates of Olympus (Pragmatic Play)
Ancient Greek-themed slots never go out of style, and Gates of Olympus stands as the most popular in this genre.
Featuring game mechanics similar to Sweet Bonanza (another hit from Pragmatic Play), Gates of Olympus uses a cascading reels system and an Anywhere Pays mechanic, awarding wins for matching at least 8 symbols anywhere on the grid. Winning combinations disappear thanks to the Tumble Feature, allowing new symbols to drop into place—potentially creating chain reactions of wins.
Adding to the excitement are random multipliers of up to 500x, which can land at any time. If multiple multipliers appear in a single sequence, they combine to deliver truly epic payouts of up to 5,000x your stake.
The Mount Olympus Free Spins Feature starts with 15 free spins, and you can retrigger it by landing just three Scatter symbols during the round.
For those looking to boost their chances of triggering the bonus, the Ante Bet option allows you to increase your base bet by 25%, doubling the likelihood of landing three or more Scatters.
6. Chilli Heat (Pragmatic Play)
Chilli Heat stands out as a low-volatility slot—an unusual trait for Pragmatic Play, a developer known for its high-volatility, big-win games favored by streamers.
Set against a vibrant Mexican backdrop, the reels feature tequila bottles, Tabasco sauce, and lively Mariachi band members.
A key element of the game is the Money Bag symbol, which appears on all reels and carries values between 1x and 100x your total bet. Landing six or more triggers the Money Respin Feature, where the Money Bags remain sticky, and you start with three spins to collect more. Each new Money Bag resets the spin counter to three, increasing your chances of landing a huge payout.
The Free Spins Feature is triggered by landing three or more scorching sun Scatters, removing lower-value symbols from the reels. Additional free spins can be retriggered by spinning three more Scatters during the bonus round, keeping the action going!
5. Sweet Bonanza (Pragmatic Play)
Sweet Bonanza shares the same cascading reel mechanics and Tumble Feature as its more well-known counterpart, Gates of Olympus. However, what sets it apart is its vibrant candy-themed design and an impressive 21,100x maximum win potential.
Set against a sugar-coated dreamland, the reels are filled with colorful fruits and candies, reminiscent of something straight out of a Willy Wonka fantasy.
Trigger the Free Spins Feature by landing three or more Scatters, awarding 10 free spins. During the bonus, special multiplier symbols of up to 100x can appear. At the end of each winning spin, all collected multipliers are combined and applied to the total win, leading to massive payout potential.
For players eager to boost their chances of triggering the bonus, Sweet Bonanza offers an Ante Bet option, increasing the stake by 25% while doubling the likelihood of landing Scatters.
7. Sugar Rush (Pragmatic Play)
Sugar Rush is a sweet-filled spectacle, packed with jelly babies, gummy bears, and candy-coated chaos—enough to send your sugar levels soaring just by looking at the screen!
This 7x7 cluster pays slot from Pragmatic Play comes with the popular Tumble Feature, allowing winning symbols to disappear and make way for new ones. A win requires just five matching symbols, making it easier to hit those tasty payouts.
The Free Spins Bonus is where the real magic happens, thanks to Multiplier Spots. When winning symbols explode, they leave a multiplier behind, which doubles each time it’s part of another win—building up to a massive 128x multiplier. Multiple multipliers can land on a single win, leading to huge potential payouts.
With a maximum win of 5,000x, Sugar Rush might not have the highest cap for a high-volatility slot, but given how many max wins players have hit, it’s clear why this game remains a fan favorite!
8. Gates Of Olympus 1000 (Pragmatic Play)
🔥 Supercharged Multipliers – The multiplier values have been significantly increased, with Zeus now able to unleash multipliers of up to 1,000x. This means that even a single well-timed multiplier can result in mind-blowing payouts.
⚡ Same Great Gameplay, Bigger Wins – The Tumble Feature remains intact, allowing consecutive wins from a single spin. Symbols continue to cascade, with winning combinations disappearing to make way for new ones.
🎨 Familiar Yet Polished Design – The artwork, animations, and sound effects largely remain the same, keeping the epic Mount Olympus aesthetic intact. However, Pragmatic Play has made subtle refinements to enhance the overall experience.
🎰 Free Spins Feature – Land four or more Scatters to trigger 15 free spins, where multipliers are collected and applied cumulatively for truly massive wins.
💰 Ante Bet Option – Just like in the original, players can increase their chances of landing Scatters by enabling the Ante Bet, which boosts their base bet by 25%.
With higher multipliers, bigger win potential, and the same engaging gameplay, Gates of Olympus 1000 is shaping up to be another top-tier slot in Pragmatic Play’s portfolio. If you loved the original, this sequel is a must-play! 🚀
9. Book of Dead (PLAY'nGO)
Nearly a decade ago, Play’n GO introduced this modern classic, and since then, it has inspired countless "Book of" slot variations.
A major reason for its lasting popularity is the Expanding Symbol mechanic, which is randomly triggered during the free spins bonus.
To activate the bonus and earn 10 free spins, you’ll need to land at least 3 Tomb Scatters. Once triggered, the Book opens, and a random Expanding Symbol is chosen. Premium symbols offer higher payouts but appear less often, while lower-value symbols show up more frequently but pay less.
Rich Wilde, the game’s charismatic hero, is described by Play’n GO as “devilishly handsome with an innate sense of adventure.” His love for exploration has led to a whole series of similar-themed slots, such as Rich Wilde and the Amulet of Dead, Rich Wilde and the Shield of Athena, and Rich Wilde and the Tome of Insanity, just to name a few.
10. The Dog House Megaways (Pragmatic Play)
Remarkably, The Dog House Megaways is the only slot on this list that uses the Megaways game mechanic.
First introduced by Big Time Gaming in 2015, this highly popular reel setup with 117,649 ways to win has since been licensed and used in many other games.
While The Dog House Megaways keeps the vibrant charm of the original, it includes several enhancements that make this latest version truly stand out.
In addition to the obvious Megaways addition, the most significant change is the option to choose between two Free Spins Bonuses: Sticky Wilds Free Spins and Raining Wilds Free Spins.
Your choice of bonus depends on your risk tolerance—each offers its own benefits with varying levels of volatility, so make your selection carefully!