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Ruby Casino Queen slot from Microgaming

Ruby Casino Queen slot from MicrogamingAnother alluring slot was developed in 2019 by Microgaming in collaboration with JustForTheWin: Ruby Casino Queen slot machine. Sharp graphics, a stylish colour scheme, and a sweet funky soundtrack with jazzy influences to complete this snazzy slot. Strangely, Ruby is not the showstopper, but it’s all about the Wilds, of which here you can enjoy 3 different kinds: Standard, Sticky, and Multiplier Sticky. The 1st only emerges during the base game, while the other 2 are exclusive to the Free Spins. Serving as a helper to launch the bonus, the developers also built a separate Re-spin function, giving extra go to deliver the 3rd Scatter. We advise you to try the Thunderstruck Wild Lightning slot by Microgaming for free.

From a technical point of view, this is a game with 20 (fixed) pay lines, an ordinary grid of 5x3, High Volatility, RTP of 96.03%, and a tempting maximum win of 720 000 CAD (for a full screen of Wilds, in the bonus round with the highest multiplier via max bet).

Check this slot for free in the DEMO mode via the link provided on our site.

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Personal testers’ opinion about Ruby Casino Queen slot

This is one machine with the typical settings of JFTW Studio and the familiar high-quality graphs we got used to receiving from them. But we fail to detect any story behind the Ruby Casino Queen online slot, so lacking a real memorable topic is our immediate impression.

Reviewing the paytable, we discover low values all through it despite the triple Wilds, which makes us think this will be one not so generous machine. The bonus symbol can appear only in the central 3 reels and carries no value. With a top payout of 20x the total bet for 5OAK Wilds, this is more appropriate for a game with 243 or 1024 win ways than a 20 liner. So, we were skeptical about what prizes the game regularly produces (not in extreme maximum - as that can occur once in 10-11 mln spins). And testing the Ruby slot proved us right. After we probed it in a couple of Casinos (both with free and real credits), we can assert that in the base game, players can expect:

  • many empty spins;
  • a small percent of spins delivering wins between 3x and 6x the total bet; and
  • very sporadically, a spin can reward with 14x to 22x the total bet payout.

In this regard, the main spins are very predictable, which makes them quite mundane. Moreover, the hit frequency here is approximately 18% (i.e. low - as with any typical high variance game) and surely doesn’t help to preserve the balance. It is one of those insatiable slots, gulping right back what it just gave (your progress is immediately swallowed), without chance of recuperation. 2 Scatters are repeatedly teasing, and the Re-spin function rarely gives the desired 3rd Scatter (seems useless).

In the Free Spins, one can mostly reckon on wins between 35x and 100x the total bet. The maximum score our test team booked in this mode was 71x the total bet, which is a super dissatisfactory outcome. The only thing left for you in the bonus is to keep fingers crossed, for those Multiplier Sticky Wilds to come at the beginning of the round and better in the left side of the grid, as they will make good combos there, will stay till the end, and will deliver multiplier every time.

Altogether, we leave negative recommendations for playing at this royal slot with real deposits and bonus money. You can certainly try your luck if you are a firm risk-taker, but it would not be easy to score a large win. Plus, playing short sessions with small starting funds is certainly doomed to fail here.


Ruby Casino Queen slot is a reskin of another JFTW title: Rockabilly Wolves slot, which the Swedes also released in 2019 (so, with just a few months in-between). So the math model and every aspect of these slots are identical. It is a matter of choice for the player: to go with the elegant variant (Ruby Casino Queen) or to go with mischievous cartoonish Disney characters and rock and roll soundtrack from the 1950s (Rockabilly Wolves). So, there is a game with different garments for gambling enthusiasts with different sentiments and senses (design).

We don’t know: to admire or to ‘chew out’ - this dedication to stick with the reskinning strategy. But wait, to appreciate JFTW/Microgaming's ceaseless reskinning, it had to be recognized as a difficult process first. And copying is damn plain easy - just the opposite of mastery and originality! Supposedly all in pursuance of more players. Is that actually working? Presently both slots are performing equally in the general Slot Ranking. So, a couple of years after their release, these twin games are already around place 3000 (from 8650 scanned slots), which is not very gratifying for the developers.

But, hey, JFTW/Microgaming could try other tactics that require fresh, not imitative work and true visionary styles if they want to stay in the TOP charts!

Ruby paytable
ruby playtable


3 types of Wilds are employed as a substitution for the other symbols:

  • 1 type, turning up only during base spins - Regular Wild (vertically stacked)
  • 2 types, turning up only during the Free Spins and when dropped, will remain till the end of the bonus
    - Red - Sticky Wilds
    - Green - Sticky Wilds - deliver +1 multiplier

The bonus symbols can drop only on the central 3 reels. Each time two bonus symbols fall during the regular spins, each time when 2 bonus symbols fall, their reels will freeze, and the 3rd central reel will impel a Re-spin, providing 1 more chance to deliver the final Free Spin symbol.

Bonus Free Spins
3 Free Spins symbols initiate the bonus round, consisting of always 9 spins, which start immediately with multiplier x2. If (any) 5 Wild symbols fall simultaneously on each reel, +3 Free Spins are granted. Anytime Green Wild drops, your multiplier scale raises with +1 (up to x6).


  • Provider - JustForTheWin (Microgaming)
  • Payment lines - 20 (fixed)
  • Volatility - High
  • The default range of bets - 0.10 to 50 CAD
  • Playing field - 5х3
  • The maximum winning is - 2400x the total bet in the base game; 6411x the total bet in the bonus game.
  • Bonuses - Wilds (3 types), Re-spin and Free Spins with Multipliers
  • Free Spins - Yes
  • Progressive Jackpot - No
  • Gamble feature - No
  • RTP - 96.03% (allows 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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