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Diamonds of the Realm Slot (Play’n GO) Review

Diamonds of the Realm Slot Logo

Journey on an Epic Quest to Help Arthur and Guinevere to Retrieve the Diamonds of the Realm!

The Diamonds of The Realm slot is the third game release from Play’n GO in their volatile King Arthur series of games. Mr Green Casino will be adding this slot to their casino on the official launch date of August 12th 2021.

The other two previous Play’n GO slots in this series are the popular Sword and the Grail and The Green Knight slots, which are both similar visually and in terms of the gameplay mechanics.

This release is definitely more of the same, with a sprinkle of extra volatility added, but we aren’t too concerned with more of the same here, with both previous titles being great online slots!

The back story to set the scene is that Arthur’s Castle has come under attack from his arch enemies Morgan and Mordred. They have sieged the castle and stolen all of the Queen’s Diamonds, hence the title “Diamonds of the Realm” slot and your main quest to retrieve them whilst playing.

The Quest

In Diamonds of the Realm, It’s your job to retrieve all of these diamonds which takes place during the free spins bonus round, with 18 diamonds in total to collect to reach the fabled 100x Win Multiplier level.

The more diamonds you collect, the bigger the multipliers grow as the collection meter fills up with every 6 diamonds retrieved, indicated by a rising multiplier (2x, 5x, 10x, 100x) and the potential winning rewards you can get!

Big wins or even Huge Wins are definitely possible here with max payouts of up to 20,000 x your total stake per spin, which can occur during the bonus feature where 100x Multipliers can become active and vastly increase all of the regular payline wins. The maximum base game hit in regular play is just 100x stake so the catapult these wins multipliers are definitely required.

The probability of winning this amount is stated as 1 in 90,909,091 spins (nearly 91 million) which may sound extremely rare. Still, the figure is actually lower than many rival high variance slots max payout chances, which hopefully gives you some indication of how rare the “ultimate” wins can be!

Diamonds of the Realm – Base Gameplay

At the heart of this machine, you have a regular 5×3 reel layout with 20 fixed paylines. Winning combinations are created by landing 3 or more matching symbols from left to right.

Above the reel set, you will notice multipliers in the range of 2x, 5x, 10x, and 100x that can activate and will spin around in a circular motion at times.

A mini-feature called Win Multiplier can activate randomly during base gameplay. This feature sees any one of these multipliers values being randomly selected and applied to any winning combinations when triggered.

Generally, the 2x and 5x values are picked as you might expect, but on rare occasions, the higher values can, of course, be awarded too. Expect the 100x Multiplier to be very rare though!

This multiplier feature gives you a good hint at what to expect during the bonus spins round with a similar rising multiplier feature that gets locked in on every one of the bonus spins.

In some countries where allowed, there’s a Fast Play mode (click on the Lightning Bolt icon) and an Autoplay function with a bonus stop trigger feature. The action is fast though so expect frequent bonus triggers and autoplay isn’t a requirement here!

The Diamonds of the Realm RTP (Return to Player) is 96.23% which is slightly above average. But this can be configured over a variety of settings by the casinos, the standard options on offer are 96.23%, 94.26%, 91.27%, 87.29%, 84.27%.

Check the paytable before playing to verify which RTP version you are playing!

Game Features Summary

  • 5×3 Reels, 20 Fixed Paylines
  • 3 or more Scatters in the base game triggers the Free Spins Bonus Round
  • Starting 5 Free Spins awarded
  • Collect 5 Diamonds to unlock the next Multiplier level
  • Collect 18 Diamonds to unlock the 100x Multiplier

Gameplay and Special Features

Desktop Gameplay

Mobile Gameplay

Diamonds of the Realm Slot - Technical Summary
Paylines20 Fixed
Variance/VolatilityVery High
Free SpinsYes
Re-Trigger Bonus RoundExtra Spins
Special Features

Free Spins
Win Multiplier Feature
Multipliers up to 100x
Extra Spins
RTP (Return To Player)96.23% (Can vary by Operator)
Release Date12/08/2021
Diamonds of the Realm Slot Logo

Free Spins and Bonus Features

Base Game Features

The base gameplay only has 1 small feature on top of the Wild symbols and this is called the Win Multiplier, positioned above the reels this feature can randomly activate and select a multiplier which is then awarded to any winning combinations after the spin is completed.

The Multiplier is in the range of 2x, 5x, 10x right up to the very rare 100x Multiplier.

Free Spins

To trigger the free spins, you need to land 3 or more of the Diamond Scatter symbols anywhere on the reels awarding an initial 5 Free Spins. Any additional scatters landed during the trigger will also contribute to the collection meter when the bonus begins.

The Win Multiplier is always active in the Free Spins and starting at 2x.

During the Free Spins round, you must collect more Diamonds to re-trigger the bonus, gain 5 extra spins each time, and raise the multiplier value.

  • Collect 6 Diamonds +5 Free Spins are awarded, the Win Multiplier will increase to 5x
  • Collect 12 Diamonds +5 Free Spins are awarded, the Win Multiplier will increase to 10x
  • Collect 18 Diamonds +5 Free Spins are awarded, and the Win Multiplier will increase to 100x

On reaching the 100x Multiplier level all Diamond symbols are removed from the reels and additional Free Spins cannot be won.

Diamond Scatter Symbol

Diamond Scatter Symbol


The paytable displayed below shows the premium win symbol payouts based on a £5 stake size, the premium symbol in base gameplay awards a 100x stake win.

There is also a handy set of buttons on the paytable that will display the winning amounts when a multiplier award is applied to them so that you can see the potential of the Win Multiplier and Free Spins features.

Diamonds of the Realm Slot – The 1000 Spins Playtest

We playtested the Diamonds of the Realm slot with 1000 spins to give you a fair reflection of the gameplay and features on what is being touted as a high variance slot machine (10/10 Volatility rating from Play’n GO).

Whilst 1000 spins are nowhere near enough spins to give you a full indication of the slots true potential. It should provide some insight into realistic expectations when playing with real money in a short session.

The playtest was performed on the 96.23% slot version, which is the highest RTP offering from Play’n GO for this machine.

Diamonds of the Realm

1000 Spins Playtest Results

  • Number of Bonuses Triggered – 16 in 1000 spins
  • Bonus Frequency – 1 in 62.5 spins (1.6% chance per spin)
  • Biggest Base Game Win – 100 x stake
  • Biggest Bonus Round Win – 92.5 x stake
  • Lowest Bonus Round Win – 2 x stake
  • Average Bonus Round Win – 26 x Stake
  • Playtest Session RTP – 86.6% (Theoretical 96.23%)

One of the most notable points we were surprised by was the unusually high bonus hit frequency on this machine, certainly quite rare for a slot claiming to be high variance.

The bonus round initially only grants a starting 5 free spins, so be aware that you could be looking at some terrible bonuses mixed in with the good ones. Our 2x stake win bonus round being a prime example of this!

We managed to reach the 10x Multiplier level several times but failed to get close to the 100x Multiplier during the bonus feature. However, with further playtesting, we did reach this level and had a superb bonus feature (see media screenshots above).

We didn’t manage to trigger a base multiplier of 100x in our playest or during any play after this period. The highest we managed was the 10x base game multiplier.

We hit the largest 5 of a kind in the base game, which is undoubtedly rare and failed to score bigger wins than this in any of our bonus features.

We did play on further after this initial 1000 spins and managed one bonus feature very shortly after reaching the 100x Multiplier level with 7 spins remaining.

The end result of this bonus round was a 413 x Stake win!

Diamonds of the Realm Slot – FAQ’s

What is the Diamonds of the Realm Slot RTP?2021-08-06T17:08:08+01:00

The theoretical average return to player (RTP) of the Diamonds of the Realm Slot is stated to be 96.23% which is about average compared to similar slots.

This can vary by the casino operator, so always check the paytable to find which versions they are using. Various other configurable values are 96.23%, 94.26%, 91.27%, 87.29%, 84.27%.

What is the Diamonds of the Realm Slot MAX win?2021-08-06T17:22:26+01:00

The maximum win for the Diamonds of the Realm Slot is an eye-watering 20,000 x Stake, this is won from the free spins round after attaining the Win Multiplier of 100x during the bonus round. then landing premium symbols in 5 of a kind across paylines.

The Maximum single pay awards 100x, Max Multiplier is 100x so a single line can pay 10,000x

Diamonds of the Realm Slot

Final Opinions on Diamonds of the Realm

Diamonds of the Realm is another great slot from Play’n GO especially if you enjoyed either Sword and the Grail or The Green Knight, it is most definitely more of the same in terms of the gameplay.

A bigger focus has been made with behind the scenes maths on making this slot more volatile than the previous titles and if you are looking for something even spicier in terms of max wins then be sure to check out Rise of the Mountain King too!

We gave this slot more a good going over in terms of playtesting with an extended playtest as we thoroughly enjoy reviewing this game and were pleasantly surprised at the frequency of the bonus triggers.

Although it is touted as a very high variance slot game there are bonuses galore. Don’t expect all of them to be big hitters though given the starting 5 free spins, if you do get lucky and reach the dizzy heights of 100x Win Multiplier then prepare for some potentially legendary wins!

Well worth checking out!

18+. Play Safe. New UK customers only. Opt-in required.  1x per customer. Free spins on Lucky Mr Green only Max. 50 free spins at £0.10/spin with 35x wagering. Spins expire 72 hours from issue. Game, country, currency, player restrictions and terms apply.

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2021-08-23T14:57:09+01:00August 3rd, 2021|Categories: Online Slot News, Reviews, and Videos|Tags: , |

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