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TopRatedCasinos.co.uk is dedicated to helping customers find the best place to play online. Your safety and well-being is a priority, which is why all of our expert casino reviews are 100% honest and unbiased, and we highlight the key terms and conditions of every casino bonus we advertise. Whilst we accept commission from the casinos on our list of recommendations, and this may affect where they’re positioned on our lists, we only recommend casinos that we truly believe are safe and fair.
| Rank | Online Casino | Casino Rating | Sign-up Bonus | Review | Sign Up | |
|---|---|---|---|---|---|---|
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1
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888 Casino
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WELCOME OFFER
Get 100% Bonus Up To £200 |
Expert Review |
#AD New UK/Ireland customers. Min £10 first deposit (NETELLER/Skrill excluded). 100% bonus equal to the deposit, up to £200. Must claim bonus via email/pop-up/My Account within 48 hours. 40x wagering req applies and must be met within 90 days on selected games. Full Ts&Cs apply. 18+ Please Gamble Responsibly. Click 'Claim Bonus' to view the full terms and conditions.
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2
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Karamba
|
WELCOME OFFER
100% Bonus Up To £250 + 250 Free Spins |
18+. New players only. Offer is valid on 1st deposit of min £10. 100% bonus match up to £250 plus 250 bonus spins on Big Bass Splash. Bonus funds + spin winnings are separate to cash funds and subject to 35x wagering requirement (bonus + deposit). Only bonus funds count towards wagering contribution. Winnings from Bonus Spins credited as Bonus funds and capped at £100. Bonus funds must be used within 30 days, spins within 24 hours. Max bonus bet £5. Affordability checks apply. Full terms in footer below. Play responsibly, GambleAware.org." 18+ Please Gamble Responsibly. Click 'Claim Bonus' to view the full terms and conditions.
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3
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LeoVegas
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WELCOME OFFER
50 Free Spins when you play £10! |
Expert Review |
18+ New cust only. Opt in & deposit £10+ in 7 days & wager 1x in 7 days on any eligible casino game (excluding live casino and table games) for 50 Free Spins. Wagering contributions vary. Free Spins worth 10p each on Big Bass Splash. 3 day expiry. T&Cs apply. GambleAware.org. 18+ Please Gamble Responsibly. Click 'Claim Bonus' to view the full terms and conditions.
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4
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Mr Green
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WELCOME OFFER
Deposit £10 Get £200 Free Spins |
#AD 18+. New customers only. Register, deposit & spend a minimum of £10 to receive 200 free spins (accept within 48hrs & wager winnings 20x within 7 days). Selected games only. Debit cards only. Offer Ends 31.07.25. T&Cs Apply | GambleAware.org 18+ Please Gamble Responsibly. Click 'Claim Bonus' to view the full terms and conditions.
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5
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Buzz Bingo
|
WELCOME OFFER
Spend £10 Get 200 Bonus Spins or £40 in Bingo Bonuses |
Expert Review |
New players only. Deposit & stake £10 on qualifying slots get 200 x 10p Fishin’ Frenzy™ The Big Catch Jackpot King™ spins (x20 WR on winnings) & £5 Club slots voucher. £5 min. withdrawal. Full T&C’s apply. 18+. 18+ Please Gamble Responsibly. Click 'Claim Bonus' to view the full terms and conditions.
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Why Play Gem Burst
Symbols & Features
There are 11 symbols in Gem Burst: four low paying ones, four high paying ones, the wild and the Blasting Free Games scatter symbol. The card values J, Q, K and A represent the low paying values, whilst four different coloured rock/meteorites with crystals on them are the high paying ones. The wild is an assortment of crystals and substitutes for all regular low and high paying symbols.
Blasting Free Games
The Blasting Free Games scatter symbol (a stick of dynamite) triggers the Blasting Free Games feature when you land at least three of them on the reels. Each symbol can turn into up to three Blasting Free Games Bombs and each of these awards you with two free games. The smallest number of free games you can claim is six, while the largest is 30. Underneath each of the reels is a stick of dynamite symbol matching the scatter symbol. Once you’ve landed enough scatter symbols to trigger the free games feature, you have to drag each Blasting Free Games Bomb into the five dynamite sticks below the five reels; each one can hold a maximum of three Bombs.
Blasting Free Games
The Blasting Free Games scatter symbol (a stick of dynamite) triggers the Blasting Free Games feature when you land at least three of them on the reels. Each symbol can turn into up to three Blasting Free Games Bombs and each of these awards you with two free games. The smallest number of free games you can claim is six, while the largest is 30. Underneath each of the reels is a stick of dynamite symbol matching the scatter symbol. Once you’ve landed enough scatter symbols to trigger the free games feature, you have to drag each Blasting Free Games Bomb into the five dynamite sticks below the five reels; each one can hold a maximum of three Bombs.
Our verdict
Gem Burst is a dazzling space/mine themed Playtech slot with an impressive RTP of 96.16%. While it certainly looks the part, it’s got more than enough great features to make for an entertaining and thrilling video slot. Give it a spin and try to land some Mystery Symbols during the free games round, as these can offer some pretty good cash prizes!
| Free spins | Autoplay |
| Progressive | Bonus rounds |
| Multipliers | Mobile |
| Free spins | Autoplay |
| Progressive | Bonus rounds |
| Multipliers | Mobile |
| Free spins | Autoplay |
| Progressive | Bonus rounds |
| Multipliers | Mobile |