User rating5 / 5

Secret of the Stones slot from NetEnt

Secret of the Stones slot from NetEnt
Inspired by the ancient (2nd century BC) druids religion, in 2013, NetEnt released the Secret of the Stones slot machine. The story goes that they were religious leaders functioning as priests, teachers, and judges- an all-around symbol of wisdom, as the oak tree and the animals: deer and owl, which they considered sacred.

There are different opinions about the monumental structure of Stonehenge. It may have served to the druids as a gravesite, gathering place, or worshiping/sacred ritual point. However, this spiritual stone garden can be your blessed location, too, if you unlock the generous rewards of the Free Spins offered by NetEnt.

This slot has Medium-High Volatility with an RTP of 96.72%. The RTP allows obtaining a positive mathematical expectation of winning in the casino. On our page, you can receive information about the slot’s features and some useful tips and play the game for free and without registration.

Find your favourite paragraph:

Personal testers’ opinion

  • There are 2 versions of this game: Classic and Max (at some casinos only). The ultimate winning possibility of the Classic game is 350 000 coins.
  • We recommend placing bets of 2.5 CAD, 12.5 CAD, and 25 CAD. We also spotted that it is better to follow the principle of choosing 1 stone from each row when you need to pick in the bonus round.
  • The slot received only a 2.67 (out of 10) index on the wagering ranking meter, which is low and insufficient.
  • The bonus round is statistically triggered every 133rd spin (0.75%), but the streaks without the Free Spins can be much extended. 
  • The probability of any hit during the usual spins is 35.10%. 
  • Our average winning from the Free Spins during the tests was 50x, and the maximum winning was 1 500x. 
  • According to our team, the best strategy is to test the slot with 50-70 spins via small stakes (1/200 or, better yet, 1/300 from your balance). The Scatter symbols could spot the ‘cold’ or ‘hot’ mood of the game. If it often delivers only 2 such symbols on the first 2 reels and doesn’t trigger the Free Spins, it is an indication that it is ‘cold’ and standoffish - so further playing is not advisable. 
  • If you find this gameplay appealing, you should give a spin also at the Secrets of Christmas slot - a true clone of the Secret of the Stones.

Review and recommendations by the testing team

  • This is one very addictive slot, which continues to be popular among gamblers, perhaps because of the great counterbalance between the massive winning potential and the not too ruthless - Medium-High Volatility.
  • You will have the feeling of winning quite often, but be prepared: most of the payments will be less than your stake. In Secret of the Stones, you will need good combinations with top symbols or top symbols and a few Wilds on a pay line, but such situations are here extremely rare. All in all, the slot only gives the illusion of preserving your balance, while in fact is mainly dropping Wilds on the reels without connecting them.
  • Regularly the slot will eat your balance in long sessions. That can even occur in the short ones, despite the few times that the game exhibited frequent issuing of top symbols combination during a small number of spins.
  • During the Free Spins, we consider as the best option with 2 Wild reels (maximum potential of winning). Usually, the Secret of the Stones slot gives something like 3 Free Spins + x1 multiplier and 1 Wild symbol. This combination provides only 40x payment.
  • Sure it is impossible always to obtain the most profitable options (actually, the RNG already decided which is the best for you), but no doubt the game offers many variants.
  • Our team regards this as an average to high dispersion game so that the players will be waiting long for the 2 reels with Wilds. We reckon that you will need at least 300 stakes starting capital. 
  • As for the bonus hunters, we are certain that despite all the attempts to compensate you with good combinations now and then, the balance is not well kept and is not worth trying long sessions here.

NetEnt declares the probabilities

  • The theoretical RTP of the slot is 96.7%. 56.9% are reserved for the payments in the base game and 39.8% for the Free Spins.
  • The probability of receiving any hit (winnings) is 38.9% in the usual spins and 92.7% in the Free Spins.
  • The probability of getting 3+ Scatters to launch the Free Spins is 0.78% (1/129).
  • The maximum possible winning is 350 000 coins. 

The hidden parameters and settings of the Secret of the Stones slot (data from testing)

  • The frequency of triggering three scatters and triggering the bonus feature is statistically every 133rd spins (0,75%). Note that waves without feature can be very long, and it is dangerous to gamble further and further when you see many situations with 2 scatters in the beginning without 3rd.
  • The probability of a hit (any winning) is 35,10%.
  • The distribution of the winnings is 61% in the main game and 39% in the bonus feature.
  • The maximum payout during the tests was 1 500x. The Secret of the Stones slot has a massive winning potential if a player will be lucky to choose wild reel 2 and wild reel 4 simultaneously.
  • The average winning from the bonus was 50x. Usually, the slot gives something like 3 free spins, x1 multiplier and any wild symbol. And then provides a winning with like 40x. Both wild reels at the same time are very rare and promise the maximum potential of winning.
  • Volatility is 9,42 out of 20 (from average to high). The winning potential of the slot is impressive.
  • Cycle length is from average to long. It seems that the longer you play, the longer cycle is.
  • The rating of the slot machine for the wagering is 2,67 out of 10.
  • RTP of 96.72% allows getting a positive mathematical expectation of winning at the casino.

Bonus features

The number of the initial Free Spins is always 10. The bonus game begins with ‘pick and click’ 3 to 5 stones from the Stone graveyard, depending on the Scatters' number. Each of the 20 stones available caries particular meaning:

  • 2, 3, 4, 5, and 10 extra Free Spins
  • Boosting multipliers of x1 or x2
  • Additional Wild symbols of a Deer and Owl
  • Expended Wild on reel 2 or on reel 4
  • Expended Wild on reel 2 and reel 4

The most lucrative feature seems to be 10 extra Free Spins plus Expended Wild on reel 2 and reel 4. With this combination, you can expect a huge winning.


  • Number of reels - 5
  • Number of pay lines - 25
  • The cost of one coin is from 0.01 to 0.5
  • Number of coins per line - from 1 to 10
  • The range of bet sizes - from 0.25 to 125
  • The maximum winning is 350,000 coins
  • Wild symbol - yes
  • Scatter symbol - yes
  • The free spins feature - yes
  • Bonus game - yes
  • The expected percentage of the payments in the slot is 96.72%


This game is our editor’s choice due to the beautiful graphics, soft and calm gameplay, with a comforting, almost magical soundtrack as an addendum. If you are drawn to games with mega-profitable bonus function, despite the high risk coming with the payout dispersion, this is one slot that will suit you. Our suggestion is to launch this game by all means, even if only for free. Then you will see what we imply by immersing in one very compelling game.

How to win at the Secret of the Stones slot machine? (Conclusion)

  • Our team believes that all NetEnt products behave identically in the DEMO and real money situations. So, to have an adequate picture beforehand, we advise you to always try each slot for free and then decide to invest or not your funds.
  • We do not recommend the Secret of the Stones slot for bonus money wagering due to poor balance keeping.
  • Owing to the stretching from average to long cycle, you can wait for one mega-profitable bonus function very long, so you should have at least 300 stakes starting balance. 
  • It is advisable to identify the slot mood first - by observing the Scatters often falling only on the first 2 reels but not on the last one. Because this signifies a cold mood, it is wise to change the game.
  • We recommend choosing stakes of 2.5 CAD, 12.5 CAD, and 25 CAD, and in the bonus round, you can try to choose 1 stone from each row.

Where to play?

  • Play Secret of the Stones slot at the best gambling site in Canada - Fastpay Casino. They offer over 5300 casino slot games as well as instant and no-hassle payouts. After the first deposit, you will become part of their VIP bonus program for loyal players with 11 levels. Each level will bring new and outstanding prizes for you.

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Written by Kamen Valev
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