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Crystals Digger Slot

Crystals Digger
Crystals Digger
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Updated: 22.07.2025
Reviewed by: Fabio Duarte
Belatra Games, first released on 12/08/2021 has pleased its players with a new slot on an extremely popular mining theme! In Crystals Digger you can get free spins, extra free spins, Craft bonus, and even  Jackpot Wheel of Fortune. In today's review, we will look at every detail of this slot in order to decide whether it is worthy of your attention or is it better for you to pass it by. Ready? So let's get started!
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In this review
  1. Slot details
  2. Theme
  3. Bonus Rounds & Free Spins
  4. Summary
  5. Where to play
General information about Crystals Digger slot

General information about Crystals Digger slot

Rating by Fabio Duarte:
8.7
User’s Rating: Not rated yet
Belatra Games
Write a review +25 SJ points
  • Release Date:
    12.08.2021
  • Volatility:
    High
  • RTP:
    90.4%
  • Multiplier:
    Yes
  • Max. win:
    2,000x
  • Bonus game:
    No
  • Free spins:
    Yes
  • Scatter Symbol:
    Yes
  • Wild symbol:
    No
  • Symbol Stacked:
    No
  • Jackpot Game:
    Yes
  • Slot lines:
    Cluster pays
  • Slot reels:
    6
  • Layout:
    6-5
  • Stakes range (€/£/$):
    0.20 to 100
  • Slot Theme:
    Gems
  • Technology:
    JS, HTML5
More infoLess info

Licensed and tested by

  • BMM Testlabs
  • ONJN

How to Play

To start the reels you need to choose your bet. Here you can bet from €0.20 to €100 per spin. The slot also has an autoplay feature that gives you the ability to trigger automatic spins starting from 10. The playing field has 6 reels in 5 rows. Here, wins are created when you land at least 8 matching symbols.

To start digging all you need is:

  • Open this slot at your chosen casino
  • Look at the values of the symbols and read the rules
  • Сhoose a bet: from €0.20 to €100
  • Spin the reels and enjoy the gameplay!

Crystals Digger RTP and Volatility

6 
The slot features medium-high volatility and 90.39% RTP.
We have no doubt that being a miner is hard, but in this slot, you will have to go through an ordeal to get some gems as it comes with a medium to high volatility. This means that you will need the patience to wait for the winning combination, but each successful spin will bring you a big payout. The RTP is not on your side as it is only 90.39% which is far, far below the industry average.

Theme

7.1 

The game tells the story of people who set themselves the task of exploring everything that is hidden underground. Be it formations from natural phenomena such as dungeons, or gems that hide underground. Therefore, if you like to explore and discover new places and objects, you will love the design of this slot.

All actions take place against the backdrop of a dark cave full of huge purple gems. In the right near the wooden playing field is a tired-looking old digger who holds 2 picks in his hands. The design is top notch and we like that there are a lot of animated elements in the game.

Gemstones of different colors appear on the reels as premium symbols and playing card suits as low paying symbols. There are also Bonus Boxes (Scatters) that you need to activate the free spins feature.

Theme
Crystals Digger - payouts

Mobile Compatibility

Mobile Compatibility
We are modern players who want to be able to play anywhere, right? Luckily, you can enjoy playing Crystals Digger wherever you are! The provider has created this slot machine using JS and HTML5 technologies, which makes it perfectly compatible with all modern smartphones and tablets. To start playing from a mobile device, go to your favorite casino from your mobile device, find this slot in its game library and click the "play" button. You will see how it loads quickly and adapts to the screen size of your device.

About Belatra Games

This slot machine was created by Belatra Games, one of the leading providers of slot machines, jackpot systems, software, and hardware. This company entered the market in 1993 and in 29 years of successful work has created more than 100 games of various types, including slots, video pokers, slotminos, hi-lo, electronic roulettes, etc.

Today, the provider has its own powerful production base, which carries out a full cycle of development and production of gaming equipment. At all stages, they carry out careful quality control. Among their top slots are Crystals Digger, Northern Boom, and Master of Gold.

Bonus Rounds & Free Spins

8.9 

Wheel of Fortune

You need to press the start button if you want to spin the small wheel and if it hits the arrow, the big wheel will start spinning. If the big wheel has a jackpot section, you will win the cash jackpot, and if not, you will win jackpot points to increase the jackpot coefficient for the next half hour of play.
Crystals Digger - feature

Free Spins

The slot activates the free spins feature as soon as 4 or more Scatter symbols appear on the reels at the same time. You will get 10 free spins during which Scatters can land to award you at least 5 extra free spins. The maximum number of free spins is 300.

Free spins are supplemented with a win multiplier. Thus, after each bonus round, your win will be multiplied by the sum of the multipliers that have hit the playing field. The multipliers look like red bombs and they can be 2x-100x.
Crystals Digger - free spins

Craft Bonus

Crystal Digger offers you the option to buy a bonus and if you want to get a higher probability of getting big wins then you’ll need to increase the price of your purchase. Unfortunately, you will not encounter this feature in the demo mode.

Crystals Digger Demo Play

Want to have fun for free? No problem! This slot machine comes with a demo version. To get access to it, you do not even need to create an account on the casino website. Just click "Play Demo" and the slot will start. In this mode, you will be able to bet with "fun" coins, which are used instead of real money to spin the reels, create prize combinations, activate bonus features, and receive prizes. Of course, you will not be able to withdraw the prizes that you won in the free mode.

Max Win

6.7 
Win up to 2,000x the bet.

The most you can hope for by spinning the reels of this slot is for a prize that will increase your bet by 2,000x. Is it a big maximum prize? We don't think so, it will be big only for those players who are used to playing with big bets.

Jackpot

To access the jackpot feature, you must first accumulate jackpot points. These points are automatically awarded to you whenever you place a bet in the base game. Therefore, you should keep a close eye on the indicator, and once it is full, you will see 2 wheels. By spinning each of them, you can win prizes!

Overall Rating

8.7
The game certainly looks nice and modern, but it's a pity that we didn't see anything new in the mining theme here. Everything according to the standard recipe: a dark mine, gems, and a white-bearded old miner. As for the gameplay, it is fast even without the autospin mode enabled, but the base game is almost empty, so all you will do is wait for the Free Spins feature with multipliers to activate or wait for the counter to accumulate enough JP points to activate the Wheel of Fortune with jackpots. All in all, this is a standard good game for high-risk players/high rollers, but it confuses us a lot with its low RTP.
Hits
Wheel of Fortune
Free spins with extra free spins
Misses
The design was created according to a standard recipe
The RTP is shockingly low

FAQ

Can I buy the bonus round in Crystals Digger?

This slot includes the Craft Bonus feature so you can buy the bonus round at any time and choose from different bonus drop options. The value of the bonus will depend on the bet made in the base game.

What about free mode?

The provider took care of the availability of a free demo mode for their new machine. It's available right on this page! With it, you will be able to bet with "fun" coins instead of real money and get everything you get in the full version, except for real wins of course.

What is the Return to Player (RTP) in Crystals Digger?

The RTP of this slot is only 90.39% which is far, far below the industry average.

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Fabio Duarte
Fabio Duarte
Expert in: News, Blog, Slot reviews, Payments
Fabio is a young writer with +6 years of experience in gambling & betting. Fabio creates professional reviews of casino and slots. Every single article Fabio made exhibits deep analytical skill and comprehensive coverage of a topic. It’s Fabio – one of the leading authors on slotsjudge.com.

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