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Play Stacks of Pearls slot by Microgaming for free

Play Stacks of Pearls slot by Microgaming for freeWith the 2019 release of Stacks of Pearls slot machine, Lightning Box Studio and Microgaming Company send us to the underwater kingdom of Atlantis. It is an exciting ocean adventure revealing some of the mysteries of a submersed fantasy world. With amazing fish, marine creatures, ocean city, ships, and naturally the Siren and Neptune, the slot offers an aquatic experience with a typical 5x3 subsea layout and 30 win lines. Additionally, the developers equipped the game with Medium Volatility, 95.41% return (RTP) and promised 2059x the total bet maximum prospect. We advise you to try the Thunderstruck Wild Lightning slot by Microgaming for free.

There are loads of surprises in this aqua world: Stacks of Pearls, Wilds, and Multiplier. And just like in nature, you cannot be sure if an oyster contains a pearl inside or not, here too, it can be that the oyster which drops on the grid embodies a Wild, a Multiplier or is just an empty shell. The more oysters drop, the bigger the chance that some of them will deliver a nice bonus inside for you. Re-spins are the show-stopper here, and the ultimate earnings that one can obtain are 3 Wilds and 3x Multipliers on the same payline, resulting in a 3x3x3=27x total Multiplier.

Don’t hesitate to embark on a quest for precious nacre - discover the Stacks of Pearls online slot first for free here on our site. No login is needed.

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Personal testers’ opinion about Stacks of Pearls slot

  • Maybe the underwater theme is overused, but don’t we all play with one goal? Walking away with some cash. With the Stacks of Pearls slot machine, there’s a very, very tiny chance that to happen.
  • The paytable is extremely poor. For example, the top symbol - the Siren pays only 33.33x the total bet for 5OAK, and the rest of the icons also have a pathetic value - from 10x the total bet (for the Neptune) to the 0.8x the total bet (for the Q and J cards) - all 5OAK on a payline. For reference, another Microgaming 30-liner: the old and unpretentious Mad Hatters slot, delivers 300x the total bet for the Scatters and 666x the total bet for the Wilds - all 5OAK and has an overall potential of 10 000x the total bet. Seeing the Stacks of Pearls provision, no wonder that almost all payouts are negligible, so, quick and massive balance increase is super unlikely.
  • You have to be patient for the Re-spins to kick off here, as they only come around about every 135th spin - i.e. a statistical probability of 0.75%, which is not as often as we would like. The hit probability is also on the low side. Not more than 25% of the spins will get you any winning. Plus, they are often small to average, regardless if you play with gratis or with real credits. Our team did register one exception of 67x the total bet (in 7 Re-spins, initiated with 3 Stacks), which is indeed sparse as a top win. Obviously, the results with 5 Re-spins (2 Stacks) were even lower - on average between 15x and 35x the total bet.

Because of the poor paytable and the insufficient RTP, we are inclined to leave negative advice when playing with real money. While for the bonus hunters, we can leave neutral recommendations.

  • Industry veteran (founded in 2004), Lightning Box Gaming Company (based in Australia)- an independent developer, often working in close partnership with Microgaming, in recent years has increased its presence on the North American market and in Canada in particular, by striking distribution deals with Loto-Québec, Atlantic Lottery Corporation and British Columbia Lottery Corporation. If you like this game, you can certainly check other Lightning Box games: Golden Yak slot (2020) and Blown Away slot (2020).

Bonus Features

  • Wilds - When the oysters drop in the base game, they are mystery oysters, then they reveal 1 of the 2 pits: Wild Pearl or Blank (empty oyster). The Wild Pearls can drop only on reels 2/3/4 and substitute for all the other symbols.
  • Re-spins - If 2 or 3 Stacks of Pearls drop simultaneously, they will initiate the bonus Re-spin feature, with 5 or 7 Re-spins, respectively. During the Re-spins, the Wilds can be regular Wilds or Multiplier Wilds. The latter not only substitute but can carry factor x2 or x3. Markedly the x27 is the highest Multiplier in 1 spin.

Settings

  • Provider - Lightning Box Studio (Microgaming)
  • Payment lines - 30 (fixed)
  • Volatility - Medium
  • The default range of bets - 0.40 to 120 CAD
  • Playing field - 5х3
  • The maximum winning is - 2059x the total bet
  • Bonuses - Wilds, Wild Stacks, Wild Multipliers, and Re-spins
  • Free Spins - No
  • Progressive Jackpot - No
  • Gamble feature - No
  • RTP - 95.41% (doesn’t allow getting a positive mathematical expectation of winning at the casino)

Where to play?

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Written by Kamen Valev
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