Hot Gems Slot Machine UK Review


#AD New customers only, min deposit £10, wagering 40x, max bet £5 with bonus funds. Max bonus is 100% up to £100. No max cash out on deposit offers. Welcome bonus excluded for players depositing with Skrill or Neteller. Cashback is cash with no restriction. Full T&C’s apply. +18, Please Gamble responsible.


18+. New UK/IE customers only. Sign up via a recognised affiliate partner using promo code 'STARSPINS'. Deposit and wager a minimum of £20 on slots to receive 50 free spins on Big Bass Splash, credited by 12pm GMT the following day. 10 x wagering before winnings can be withdrawn.

This promotion is for new customers only. Customers must be 18+. Customers must be residents of the UK/IE.

New customers only aged 18+. Minimum deposit £10. Get a Casino Bonus matched to your first deposit, up to £100, after you stake £20 on slots, credited within 48 hours. Bonus expires in 7 days and has a 40x wagering requirement. Additional T&Cs apply. Please bet responsibly.


18+ New Customers only. GB and ROI only. Use promocode: casino50 Minimum deposit & wager £25 on Drops & Wins slots required. 50 x 10p free spins on Big Bass Bonanza valid for 7 days, winnings capped at £500. Wagering must be completed within 24 hours of registration. Restrictions + T&Cs apply.


If you’re looking for an exciting online slot that’s bright, fun to play and full of big win potential– including a jackpot win of 5,000x your stake – then this mining-themed Hot Gems game could be just what you’ve been looking for. With innovative cascading reels that award you extra chances to win for the same wager, as well as scatters with extra payouts and wilds with increasing multipliers, there’s plenty of fun to be had when you give this game a whirl. To find out how you can hit the Hot Gem reels at UK online casinos and play for real money payouts, keep reading.


  • Game Type: 5 reels, 25 fixed paylines
  • Return to Player (RTP): 96%
  • Volatility: High
  • Theme: Mining, gems, treasure
  • Release Year: 2012


To play Hot Gems with our recommended online casinos for real money wins, you must first sign up for a UK online casino account and then add funds to your bankroll. Our featured operators offer a variety of UK-friendly payment method options, as well as bankroll-boosting casino bonuses (make sure you read the T&Cs), making it easy for you to get started. Once you’re set up and ready to play, simply log in and hit the slots lobby to select your favourite game, including Hot Gems. To go directly to your game, you can also click the “Play Now” on your preferred online casino from the list above.


The miner icon will award your jackpot win when you match 5 on a payline – as soon as the jackpot combination hits you will have 5,000x your stake awarded to your bankroll. This means that if you Bet Max at £100 a payline, you could win up to £500,000 for a single line win.


Bet & Coins: Set your 25 lines at between £0.20 and £100 per line, making your total bet range between £5 and £2,500.

Symbols: The icons on this game feature lots of gem mining memorabilia, including a miner, lanterns, pick axes, a cart and different coloured gem stones. There are also wilds, bonus spins and scatter icons in play. Your biggest win via the non-bonus icons is 400x your stake for landing 5 matching lantern icons. The next biggest win is 250x your stake for 4 matching miner icons.

Collapsing Reels: During both the main game and bonus spins, any win will trigger collapsing reels; all icons counted as part of the win will explode and new icons will fall down into their empty spots. If these newly refilled reels cause another win, the same thing will happen, with cascading reels continuing until no new wins are made and a new bet is required.

Wild: The bright red-coloured wild icon substitutes for all other icons except the bonus games and logo scatter icons. Wilds replace icons to help you make more winning combinations, and in this game, they are present on reels 2, 3 and 4.

Scatter: The Hot Gems logo acts as your scatter and it will award you instant payouts when you land 2 or more anywhere on the reels – scatters do not need to land on paylines or in clusters to make a win.

  • Land 2 scatters to receive 1x your stake in winnings.
  • Land 3 scatters to receive a payout of 4x your stake.
  • Land 4 scatter icons to receive 20x your stake.
  • Land 5 scatters to receive an impressive 100x your stake.

Bonus Games: Land this icon anywhere on reels 1 + 3 + 5 to trigger 15 bonus spins with a collapsing reels multiplier. During bonus spins, the multiplier starts at 1x. When a win is made and the reels explode, the multiplier increases by +1 until a maximum of 5x.

Symbol2 on a payline3 on a payline4 on a payline5 on a payline
Pick axe-50x150x300x
Hot Gems logo (scatter)1x4x20x100x
Yellow gem-10x40x80x
Red gem-8x40x80x
Purple gem-7x30x60x
Blue gem-5x30x60x
Orange/green gem2x5x15x40x


Hot Gems by Playtech may be set underground, but it’s a bright and lively game with plenty of colour – which makes the software easy to navigate, the text simple to read, and the features straightforward and easy to follow, whether you opt for desktop or mobile play. Both iOS and Android operating systems are fully supported, and as the game is fully mobile optimised, it will adapt to suit any screen size perfectly. So no matter how you play, you’ll benefit from a fast and secure login and a seamless gaming experience every time. The lively sound effects and music add to your overall enjoyment, especially through headphones when you decide to play via your mobile – this has an extra benefit as the sound also alerts you to your wins and bonus features. Our operators offer games that are available 24/7, however or wherever you like to play. Sign up to any UK online casino today for your chance to enjoy Hot Gems on your phone, tablet, or laptop, and enjoy an exciting online slot experience.


Hot Gems slot UK has a few basic bonus features that make the game a huge hit with players of all kinds; from the increasing wild multiplier, to the cascading reels, to the decent 5,000x your stake bonus, there are plenty of layers to enjoy. Sign up to our UK casinos today and try our mining-themed online slot to witness for yourself what all the hype is about.