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Review | Video Slots from Kalamba Games

Crystal Cavern

United Kingdom

Provider: Kalamba Games

Game release: 11.02.2020

RTP: 97.72%

Variance: MED-HIGH

Layout: 6*4  http://slotcatalog.com/en/slots/Charms-and-Clovers

Betways: 4096

Max Exposure: 5

We scanned 845 United Kingdom online casinos and found Crystal Cavern in 48 of them. 2 casinos put Crystal Cavern in their lobby. Average position in the casino lobbies is 149.79 (Calculated for all 845 casinos). SlotRank for Crystal Cavern for United Kingdom is 975.

United Kingdom

Online Casinos in United Kingdom where you can play Crystal Cavern

# Logo Casino Weight  CRV  Games  Lobby  Go to casino
1 Videoslots Videoslots
T&C Apply
22200 0.12 457 - | 68 | 100% up to £200 + 11WS
2 Kassu Kassu
T&C Apply
0 0.00 1246 - | 20 | 100% up to £300 + 300BS
3 Genesis Casino Genesis Casino
T&C Apply
1700 0.10 1216 - | 37 | 100% up to £100 + 300S
4 PlayOJO PlayOJO
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43200 0.40 1556 - | 12 | Get 50 FS Wager Free!
5 Unibet Unibet
T&C Apply
94000 1.00 888 - | 50 | Deposit £10 Get £40 Casino Bonus
6 Betsson Betsson
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3900 0.10 1332 11 | 39 | Up to 200 Cash Spins
7 Mr Green Mr Green
31400 0.24 1597 - | 38 | Go to casino
8 21Casino 21Casino
T&C Apply
4400 0.10 726 35 | 21 | 121% up to £300
9 Hello Casino Hello Casino
T&C Apply
3000 0.10 1044 - | 26 | 100% up to £100 + 25S
10 Bethard Casino Bethard Casino
T&C Apply
4900 0.10 701 - | 23 | +£50
11 The Grand Ivy Casino The Grand Ivy Casino
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2300 0.10 1024 - | 10 | 100% up to £300 + 25FS
12 21 Prive 21 Prive
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1100 0.10 1047 - | 24 | 100% up to £250 + 25S

Casino weight - is the value that correlated with estimation of Internet traffic to the casino site.

CRV (Casino Rank Value) - coefficient from 0 to 1 calculated based on casino weight. CRV - used for the SlotRank calculation.

Games - amount of games in the casino.

Lobby - position of Crystal Cavern in the casino lobby. (Position in the lobby | Total games in the lobby | Screen(Evidence)).

Screen(Evidence) - screenshot of the casino lobby during the last casino scan.

Casino weight - is the value that correlated with estimation of Internet traffic to the casino site.

CRV (Casino Rank Value) - coefficient from 0 to 1 calculated based on casino weight. CRV - used for the SlotRank calculation.

Games - amount of games in the casino.

Lobby - position of Crystal Cavern in the casino lobby. (Position in the lobby | Total games in the lobby | Screen(Evidence)).

Screen(Evidence) - screenshot of the casino lobby during the last casino scan.

7. Mr Green
8. 21Casino
10. Bethard Casino

Weight: casino weight - is the value that correlated with estimation of Internet traffic.

CRV: coefficient that we are using for ranking calculation.

Lobby: position of {/data/row/name} in the casino lobby. (Position in the lobby | Overall games in the lobby).

Games: amount of games in the casino. ({brand/row/name} games) / Overall games.

Screen: lobby screen was made diring last scan

Crystal Cavern statistics. See full SlotRank calculation

Quantity of casinos

Gray line shows quantity of casinos which have "Crystal Cavern". Green line is the quantity of casinos placed the game on their lobby.



970. (-38Northern Sky  150.01

971. (-113Dragons Wild  150.50

972. (-38Astro Babes  150.66

973. (-16Fat Rabbit  149.88

974. (-39Thief  149.78

975. (-38)  Crystal Cavern  149.79

976. (-38Poison Eve  149.79

977. (-38Crown of Egypt  149.79

978. (-34Pyramidion  149.80

979. (-37Dragonara Roulette   149.80

980. (+12Blood Suckers 2  150.16


Position in lobby

Average position in the casinos lobby. Position is calculated for all casinos. When casino does not have the game on the lobby position is taken as 151.




requirement x35



Wager free!

18+ | New Players Only. Min Deposit €/$/£10, Wagering Requirements: 20x. Account balance is withdrawable at any time. Upon withdrawal, any remaining bonus balance is forfeited. 7 days to activate the spins. Bonus spins expire after 4 hours. T&C Apply. BeGambleAware.org

Integrate demo game

SlotCatalog provides easy way how to integrate Crystal Cavern demo game on your site or blog.

  • Click on link below
  • Copy simple html code
  • Place on your site or blog
  • Enjoy Crystal Cavern demo game

Get HTML code >

If you faced with any issues do not hesitate to ask.

Demo for Crystal Cavern

Crystal Cavern slot game review

Crystal Cavern is set in an underground cave with glimmering crystals and luminescent mushrooms, and Kalamba Games has made a visually pleasing game here for sure. The gameplay is somewhat unusual, since you have to commit to cycles of 10 spins, but it all makes sense once you get into it.

It all plays out on 6 reels, 4 rows and 4,096 ways to win, and the maximum and minimum bet level depends on which Hyper Bet multiplier level you choose. There are 3 Hyper Bet levels (1x, 2x and 3x), and you can place bets between 30p and £60 per spin from this option. Once you have committed to a bet level, you will need to stick to that for the next 10 spins.

The game’s RTP will also vary according to the Hyper Bet level you choose, and the multiplier you get will only benefit you if you actually manage to trigger the bonus round within the 10 spin cycle. Everything resets after 10 spins, which can be somewhat frustrating in the longer run. If you have the patience for a volatile game, Crystal Cavern offers massive theoretical max wins.

What symbols are there?

All the higher value symbols are different colored crystals here, with the red crystal being the most paying symbol of them all. The low value symbols are not your usual royals, but instead a bunch of more or less glowing mushrooms of various kinds. You need between 3 and 5 matching symbols on a payline to win, and here is the paytable for Crystal Cavern slot:

  • Red crystal - Pays 5x for 5 on a payline
  • Yellow crystal - Pays 4.1x for 5 on a payline
  • Green crystal - Pays 4.1x for 5 on a payline
  • Blue crystal - Pays 3.3x for 5 on a payline
  • Purple crystal - Pays 3.3x for 5 on a payline
  • Div mushrooms - Pay between 2x and 1.6x for 5 on a payline

What are the bonus features?

The base game comes with a wild symbol, which is a stone block with the word “wild” written on it. Hard to mistake, in other words, and we also like the fact that all higher value symbols come with frames. This way it’s easy to distinguish them from the lower value mushroom symbols.

On the left-hand side of the reels you’ll see a Hyper Bet meter, and here you can choose between 3 different bet levels. Each bet level corresponds to a different multiplier in the free spins feature, but increasing the bet level will naturally also increase your bet. The multiplier goes from 1x to 2x and 3x, and you have to pay twice as much per spin if you want the 3x multiplier.

The game’s RTP is also affected by your chosen Hyper Bet level, and at level 1 your RTP is 95.85 %. If you chose to go with bet level 2, your RTP will increase to a very decent 97.10 % and level 3 will give you an RTP of 97.72 %. Remember, the multiplier you get from the Hyper Bet only applies in the free spins feature, which we will discuss next.

Free spins in Crystal Cavern

While spinning in the base game, you’ll notice pinkish orbs landing on the reels and being collected in the meter on the right-hand side. On top of that meter you’ll see a sign that says “3 free spins”, and this is the minimum amount of spins you get when you fill the meter with orbs.

The meter resets after every 10 base game spin, which means that you always have only 10 spins to fill the meter before you start all over again. You need to collect 6 orbs to get to the free spins feature here, and every orb above 6 that you collect, will add 1 extra spin to your total.

Each orb also has a unique coin value, and can sometimes be collected with a multiplier value as well. All the accumulated value and multiplier value will be carried over into the free spins bonus round, and you also get 1 extra free spin for every orb symbol that lands during the free spins feature.

All winnings are subject to your accumulated multiplier, plus any multiplier that you might land on that spin. At the end of the bonus round, all orb symbol values from the very beginning of the 10 spin cycle will be summarized. And this sum total will then be boosted by the total multiplier you have accumulated (capped at 5x, 9x and 13x for the 3 different Hyper Bet levels).

What is the jackpot (max win)?

You will not find any kind of jackpot on Crystal Cavern slot, but you can still land some solid payouts here. Filling the reels with nothing but the highest paying symbol, would give you the theoretical max win of 5 x 4,096, which equals 20,480 times your stake. Note that we’ve not even factored in the free spins multiplier here. The realistic max win is probably a lot less though, but big wins are certainly possible in this game.

Where can I play Crystal Cavern?

You can play Crystal Cavern for real money at one of the listed casinos below: Where to play Crystal Cavern.

Don’t want to play for real money? No problem, you can easily play the demo for free here at SlotCatalog: Play Crystal Cavern for free.

Yes, you can also play Crystal Cavern on your mobile phone and tablet, and Kalamba Games always make sure their games are fit for the handheld platforms. You therefore have the freedom to play on the go, and all you need to get started right away is your Android, iPhone or iPad.

SlotCatalog verdict

Crystal Cavern is not as complicated as it may sound when we write about it, but you will need to commit for 10 spins when it comes to bet level and Hyper Bet level. The volatility is on the higher side of medium here, and you can expect a “close, but no cigar” feeling in most of the 10 spin cycles. Winning big is possible for sure, but you need to carefully consider which Hyper Bet level you want to go for.


  • 10 spin value/multiplier collection
  • Free spins with multiplier wins
  • Choose between 3 Hyper Bet levels
  • Medium to high volatility
  • Theoretical max of of 20,480x + multiplier


  • No bonus game
  • Cannot change bet level before 10 spin cycle ends

Crystal Cavern Features

Additional Free Spins, FreeSpins, Multiplier, Symbols collection (Energy), Wild


Crystals, Flowers, Mushroom, Cave






Max Exposure


Min bet (Max bet) $, €, £

0.3 (30)


http://slotcatalog.com/en/slots/Charms-and-Clovers 6*4

Reels (Rows)

0 (4)




Desktop, Tablet, Mobile

  Desktop, Tablet, Mobile



Game release


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