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Crystal Miners

Review, Demo Play, Payout, Free Spins & Bonuses

Crystal Miners is an online slot game produced by Apollo Games. It has five reels, 40 paylines, an RTP of 95%, variable volatility and an exciting theme which mixes mys...terious creatures and crystal mining.

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  • Fantastic graphics
  • Lots of bonus features
  • Gamble option to double up winnings
  • Slightly lower RTP rate will put off some players
  • Variable volatility means wins are spaced further apart


Crystal Miners is played on a standard five by four game grid. Small lava creatures with large eyes and jagged smiles welcome you to the game, which takes place in the background setting of a crystal mine. As with many games of this type, wins are landed by matching combinations of three, four or five of the same symbol. The game symbols take the form of different coloured gemstones, including emeralds, amethysts, sapphires, rubies and more. The start and menu buttons also take the form of gemstones, which is characteristic of the thought which has been put into the game’s look.

With free spins, bonus and wild symbols, there’s plenty of action to keep this game entertaining, but further thrills and spills are also added by the game’s gamble feature, which gives you the chance to double your winnings (but also means you could lose everything, so beware!).

Theme and Graphics 

The graphics of this game are truly astounding and must be some of the best in the industry. They’re neon bright and clear and sparkle like the crystals they represent. The animations are fun and the lava creatures have a certain cuteness about them which may or may not appeal. They are very well done, though, and small touches have been integrated seamlessly into the game (for example, the reflection of the creatures in the crystals) to make sure this has a really appealing look. There’s plenty of excitement in the game as well: lava can randomly flood the screen, activating the game’s mining feature (more on this below), and you’re only usually a spin or two away from activating one of the game’s many bonuses.

Those who enjoy Crystal Miners might also enjoy the gemstone fun of maker Playson's Crystal Crush slot. You can play this and lots of other free slots at Slots Temple.

Crystal Miners

Crystal Miners RTP and Variance

The RTP rate of Crystal Miners is 95.5%, which is just under the industry average for games of this sort. At the time of writing this review, the information available suggests that Crystal Miners has variable volatility. This appears to be predominantly on the medium scale, which means that wins are likely to be spaced further apart.

How to Play Crystal Miners

Crystal Miners is very straightforward to play, but here’s a quick guide to get you going:

  1. Load the game up and have a look at the full game rules and paytable information by clicking on the menu button at the bottom left.
  2. Once you’ve got the menu loaded, you can also change your bet and choose the game sounds. Your bet can also be adjusted by clicking on the display underneath the game grid. The game also includes an autostart feature which can be activated in the menu to start play automatically.
  3. Press the green crystal start button to get the reels spinning and start playing!
  4. Make sure you play Crystal Miners responsibly by setting a time limit for your gaming session.

Min & Max Bets + Top Wins

The minimum bet on Crystal Miners is 0.10 and the maximum is 70. The majority of the crystal symbols are worth between 0.32 and 0.36 coins, and the top-paying symbol in the game is the green emerald crystal, which pays out 20 coins.

Crystal Miners Bonus Features

Crystal Miners boasts an impressive number of bonus features to add to the basic gameplay, including free spins and the extra exciting gamble and mining feature. The game also has a random swap feature where symbols might be unexpectedly moved to create a winning combination.

Gamble Feature

The gamble feature can be activated when you win to potentially double your winnings. A playing card will appear, and the game will ask you to choose the colour of the top card - either red or black. If you would like to play this feature, you can choose to only stake half your winnings if you'd prefer. The gamble feature can be used up to five times in a row and can only be used when the gamble stake is higher than the minimum bet currently being played.

Free Spins

You can get an increasing number of free spins when you land bonus symbols. Getting three bonus symbols nets you five free spins, four get you 10 free spins, and five bonus symbols will get you an impressive 15 free spins. 

Colossal Respin

If four identical symbols (aquamarine, emerald, or clear quartz) land on the same reel, they will form a colossal symbol, which will respin the other reels, giving you the chance to win more prizes.

Mining Feature

Occasionally throughout the game a stream of molten lava will flood the screen and cover reels 2, 3 or 4. When this happens, the mini miner creatures will extract symbols from the reel and place them in random positions on the game grid, potentially leading to bigger wins.

Crystal Miners Review: Our Verdict

There’s a lot about this game to like, from the crystal clear graphics to the multitude of special and bonus features available throughout. It may not be the best fit for players new to slots, as there are a lot of features, but once you've given it a few spins it’s easy to understand and fun to play.

If you’d like to try and find some crystals of your own, you can try a game of Crystal Miners and other Apollo Games demo slots at Slots Temple.

Disclaimer: Crystal Miners trademark / license is owned by Apollo Games. This site is not endorsed by Apollo Games.

Slot Data
Slot Name: Crystal Miners
Software: Apollo Games
RTP: 95.00%
Paylines: 40
Reels: 5
Min Bet (all lines covered): £0.20 (GBP)
Max Bet: £60 (GBP)
Top Win: 200
Features: Progressive, Wild Symbol, Respins, Gamble, 5 Reels
UK Available in UK? No. :maker does not have a UKGC license and cannot offer their games at UK licensed casinos.


Does Crystal Miners have a free spins feature?

Yes, you can get up to 15 free spins when you land five bonus symbols.

What is the RTP of Crystal Miners?

The RTP of this game is 95.5%. That means it’s slightly below the average rate for this sort of game.

What is the gamble feature?

The gamble feature gives you the chance to double your winnings. After each win you’ll be given the choice to gamble with your winnings by selecting the correct card colour up to five times in a row.

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