It’s amazing to think that gambling is believed to have existed for around 5,000 years. It was a form of entertainment in Ancient Mesopotamia, Ancient Egypt, China, and Greece. Gambling was also a big thing during Medieval Europe; evidence of that is found in the latest slot I’m about to review. The reels of the Cluster Kingdom slot are set on a table with coins, dice, and cards scattered around it, and as the theme depicts, it is a Princess, Queen, and King going head to head in this particular game. Cluster Kingdom is a 5×5 cluster pays slot from Elk Studios with a 94% RTP and a 10,000x the stake maximum win.
The features you’ll come across when spinning the reels include cascading reels, a Sticky Redrop feature, multiplier wilds, and special symbols that can perform functions such as rearranging symbols, adding wilds to the reels, and symbol transformations. Plus, there are three free spins bonus games and many buy bonus options to look forward to. That’s quite a set of features, but should you expect anything different from an Elk Studios slot?
I imagine many people will be eager to try this game, and if that includes you, you can check it out by scrolling down to our free Cluster Kingdom slot demo below.
| Provider | Elk Studios |
| Reels | 5 |
| Rows | 5 |
| Paylines | Cluster Pays |
| Bonus Rounds | 3 |
| Bet Range | 0.20 - 100 |
| Volatility | High |
| Max Win | 10,000x |
| Bonus Buy | Yes |
| RTP | 94% |
| Our Rating | 7.0 |
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Cluster Kingdom demo slot
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Cluster Kingdom slot theme, stakes, pays & symbols
I know many of you are fans of grid slots, and as long as they offer good gameplay, I’ll admit I’m partial to them as well. There are just as many that don’t as there are that do, so I’d recommend checking out a few titles I already know are worth playing. For example, Nolimit City’s The Border is probably among the best cluster pays slot games around at the moment. It has a whopping 44,288x maximum win and is packed with the modifiers and features most of you have come to expect from NLC. It’s a title I often play, while others I keep an eye out for are Big Time Gaming’s Millionaire Rush Megaclusters and Push Gaming’s Jammin’ Jars 2.
As with all cluster pays slots, the bigger the clusters that land, the bigger the payouts you can expect on the Cluster Kingdom slot. 25+ clusters of the Castle symbol guarantee a 250x the stake payout, while the House has a top return of 150x, and the Windmill is worth up to 100x. The Tree symbol tops out at 50x, while 25 or more of the Wheat returns 25x. Wild symbols do not have a value but can help create or enhance winning combinations on the reels by substituting for each of the aforementioned regular symbols.
Those wishing to make the leap over to real money play can try out Cluster Kingdom from a bankroll-friendly minimum of €0.20 a spin up to a maximum of €100.00. This is the standard betting range on most Elk slots, and the structure works well, catering for low, mid, and high rollers.
Cluster Kingdom slot base game
Unless you missed the subtle clue in the title of this slot, Elk Studios has gone for a cluster pays mechanic across the 5×5 grid matrix offered by Cluster Kingdom. Therefore, winning combinations are created and paid when five or more matching symbols are connected horizontally or vertically anywhere on the reels. Winning symbols are removed from the reels, more drop into place, and further combos have the potential to land. That process repeats itself until a symbol cascade results in no new combinations.
Sticky Redrops
Sticky Redrop symbols can appear on the reels, and when they do, they randomly select a regular paying symbol. All instances of the chosen symbol lock in place while all others (except wilds and wild multipliers) are removed from the reels to force a redrop. If the drop reveals a new instance of that symbol, another Sticky Redrop is awarded.
Wilds & Multiplier Wilds
All wild symbols can appear anywhere on the reels and always remain sticky during cascades and redrops. If two multiplier wilds land next to each other, their multipliers are combined and awarded to one of the two, while the other becomes a regular wild.
Royalty Feature Symbols
Whenever the Princess, Queen, or King symbols land, they trigger the following:
- Princess: The Princess adds between 1 and 4 wild symbols to random positions on the reels.
- Queen: The Queen will rearrange symbols sat adjacently in all directions.
- King: The King transforms all instances of the lowest-value symbol adjacent to him into the highest-value symbol adjacent to him.
If the Princess and/or Queen are on the reels at the same time as the King, they will move one position after every win and before the next redrop.
Cluster Kingdom slot bonus features
There are three bonus games on Cluster Kingdom, and each triggers when combinations of the Princess, Queen, and King are in adjacent positions. Want to find out what they do? Let’s take a look below.
Free Spins
- Standard Free Spins: When the King and Queen are positioned adjacent to each other vertically or horizontally, you receive 6 free spins. Any multipliers present on the triggering spin carry over to the bonus and are persistent throughout.
- Special Free Spins: To trigger this free spins bonus, all three of the Princess, Queen, and King must be connected vertically or horizontally. Again, you receive 6 free spins, although this time, the multipliers carried over are progressive as well as persistent.
- Mini Free Spins: If the Princess and King are adjacent to each other, you will receive 3 free spins with increasing and persistent multiplier wilds.
Bonus Buy
- Bonus Hunt: For 3x the current stake, you can spin with triple the chance of triggering a free spins bonus.
- Sticky Redrops: In return for 10x the current spin bet, you can spin with the guarantee of redrops.
- Mini Free Spins Bonus: 50x the stake.
- Regular Free Spins Bonus: 100x the current spin bet.
- Special Free Spins Bonus: 500x the stake.
Pros
- Watch out for the Monty Python-style humour as you play.
- The usual standard max win from Elk of 10,000x the bet.
Cons
- Certainly not as exciting as many other cluster pays slots.
- The low RTP of 94%.
Cluster Kingdom Slot Review Final Thoughts
While there’s much more going on feature-wise in this slot compared to those from many other developers in the grid slot niche, by Elk Studios standards, Cluster King is lacking. The theme is interesting, and a few comedic elements emerge from the features, but overall, I feel that this release is a level or two below what Elk usually conjures up.
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