Play Cool Jewels Slot for Free & Review

Cool Jewels Slot Review Cool Jewels is a WMS Gaming video slot which is the first game of theirs to use the Exploding Pays engine. You can spin away from just 50p a spin to as much as £200 a spin. The game has 6 reels and 6 rows and features free spins, cascading reels and wild substitutes.

Where to Play Cool Jewels Slot


up to £200


Free Spins



T&C Apply

18+. New players, £10+ deposits, no e-wallets / prepaid cards, 30x Playthrough on Bonus and 50x on Free Spins. T&Cs Apply


up to £60




Virtual Reality

T&C Apply

18+. New UK customers only. 200% deposit bonus up to £60. Must use bonus code “OSUK200” upon registration to receive the bonus. Min deposit £20 and 48x wagering requirements apply on bonus (game weighting applies). £3 max bet applies when playing with an active bonus. Bonus expires if not claimed within 7 days. T’s and c’s apply. Please gamble responsibly,


up to £50


Free Spins



T&C Apply

18+ new players only. Maximum £50 bonus. Minimum deposit: £20. Max bet with active bonus: £2. Wagering requirement 100% match bonus: 30 times sum of deposit + bonus. Winnings from Free Spins come as cash. Some games may not be played with an active bonus. Games may contribute differently when wagering a bonus.

Cool Jewels Slot Review

Exploding Pays gives you multiple ways to win as wild symbols blast, explode and shock. This isn’t a traditional slot game by any means but you need to work your way through 8 levels of symbol value. To way to win here is to get matching groups of 4 or more of the same symbol which are connected horizontally and/or vertically. Then these matching symbols will be destroyed to give you new symbols and the opportunity to win time and time again.

If you get Exploding, Blasting or Shocking wilds in combinations, they won’t be destroyed so remain on the screen to boost your winning potential. Look out for the Diamond symbol as it pays 10 times the credit value. Exploding Wilds destroy symbols connect to it, Blasting Wilds destroy symbols horizontally and vertically for its centre and Shocking Wilds destroy symbols diagonal from its centre.

There are Enhancement features which occur when any combination of Exploding and Blasting Wilds appear – it will leave a pink watermark which remains for the next spin and destroys symbols within it. When you have Exploding and Shocking Wild combinations, you will see a green watermark – all symbols within this in the next spin are wild. When Blasting and Shocking wilds combine, you will see a blue watermark. In the next spin, symbols will be paid at 10x the current value. If you have a Diamond, it will be paid at 100 times the current value on the Pay Per Symbol Meter!

There is a Free Spins Bonus feature which you can trigger when 4 or more Bonus symbols are destroyed – this will give you 8 free spins. There’s up to 20 free spins available initially though (5 Bonus symbols = 10 free spins, 6 = 15 free spins and 7 = 20 free spins). If you destroy an additional bonus symbol, you will receive an extra 5 free spins.

Cool Jewels may sound confusing but it’s quite good once you get going. It’s very shiny and fast paced and reminds me a lot of Starburst by Net Entertainment. I found it to be medium variance as most of the wins are quite small. However, I won almost 100 times my stake the first time I triggered the free spins feature which was great. It’s not my favourite WMS slot but worth playing – I much prefer more volatile slots like the amazing Black Knight II.

Cool Jewels Slot Information

  • Game:
    Cool Jewels
  • Software:
  • Type:
    Video Slot
  • Reels:
  • Paylines:
  • Total Coins:
  • Coins Range:
    0.50 to 200
  • Jackpot:
  • Bonus Round:
    Yes (3)
  • Free Spins/Multiplier:
Review by Chris Taylor

Review by Chris Taylor

Chris is a slots expert that has reviewed and played over 4,000 online slots. Having being in the iGaming industry for over 16 years, he knows how slots work, how bonus features are triggered and how the RTP and variance affect the gameplay.