4 Diamond Blues Megaways Slot Review

The classic one-armed bandit gets a modern makeover in the 4 Diamond Blues Megaways slot. Powered by Microgaming, it’s a 6 reel, rolling reels game where the number of ways to win can get as high as 117,649. The main extra is the Free Spins feature which awards a minimum of 12 free spins. Each rolling reel win increases a multiplier by 1. Discover all you need to know about this simple but volatile slot in our deep dive 4 Diamond Blues Megaways review.

Where to Play 4 Diamond Blues Megaways Slot

Casushi Casino
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4 Diamond Blues Megaways Slot, Details & Wager Limits

The 4 Diamond Blues Megaways slot is played on a 6 reel machine. The number of symbols that can land on each reel changes with each new spin. If all the reels contain the maximum number of symbols the number of ways to win can get as high as 117,649.

Winning combinations are created by landing 3 or more matching symbols or wilds from left to right on adjacent reels, starting from the leftmost reel. The only exception being the lucky red 7 where you only need 2 symbols to create a winner.

The 4 Diamond Blues Megaways RTP is 96.4% which is an above average number. Expect a winning combination frequently as hit frequency rate is 37.24%. This means over a third of spins will result in a win, on average.

The game might be a simple one but it can deliver some big bankroll swings. The volatility is high. On average, each trigger of the Free Spins feature awards a payout of 92 x stake. However, the maximum win comes in 18,500 x your total stake per spin.

Theme – Audio and Design features – one-armed bandit with a Megaways twist


The 4 Diamond Blues Megaways slot has the look of an old-school one-armed bandit. The inspiration might be rather retro but the design here has a fresh, modern look to it. There’s a slightly rock’n’roll feel to the soundtrack which revs up into something a bit more Status Quo when you trigger the free spins. The design here is nicely done.

On the reels, you’ll see heart, diamond, club and spade symbols alongside a collection of symbols commonly found on a classic fruit machine. In order of value are a horseshoe, a bell, a 4-leaf clover, cherries and bars. The most lucrative symbol is the lucky red 7 which pays 60 x your total stake if you manage to land 6 in combination. There’s also a wild that substitutes for all the standard symbols and a blue diamond which is the game’s scatter symbol.

The crisp imagery and simple gameplay are an ideal combination for play on a smaller screen. The 4 Diamond Blues Megaways mobile slot is very straightforward to play and works well.

4 Diamond Blues Megaways Bonus Features

As you might expect from a slot that’s based on the humble one-armed bandit, the gameplay in 4 Diamond Blues Megaways is relatively simple. With 3 bonus features, the main extra on offer here is a free spins round, complete with an increasing multiplier.

Rolling Reels feature

After a winner is formed, the Rolling Reels feature whirs into life. Those successful symbols are blasted off the screen and new symbols drop into the vacated positions and replace them. A new payout consideration then follows. If a new winner is formed, the process is repeated.

The Reel Rolls keep on coming until there’s one where no new winner lands. A new spin then takes place. This feature has been used in countless Microgaming slots including Immortal Romance.

Free Spins feature


Landing 4 or more diamond scatter symbols on the same spin trigger the Free Spins feature. You’ll then receive 12 free spins. Each extra scatter that lands on the triggering spin adds another 5 free spins to that total. Seeing 6 scatters for example would give you 22 free spins initially.

The action starts with a standard 1x multiplier active. There are ample opportunities to increase that though. Each time a Rolling Reels win is created, the value of that multiplier increases by 1. The multiplier doesn’t reset following an unsuccessful Reel Roll either, it continues to increase throughout the feature.

Unlimited retriggers are possible too. Landing 3 or 4 diamond scatters on the same free spin adds another 5 or 10 free spins to your total.

In some territories, players will have the opportunity to buy their way into the free spins with the Buy Free Spins feature. This will set you back 100 x your total stake. The number of scatters you’ll land on this spin is randomly chosen but you’ll receive a minimum of 4 for at least 12 free spins. This option isn’t currently available for UK players.

4 Diamond Blues Megaways Review Summary – a stripped back Megaways offering

There’s a retro feel to the 4 Dragon Blues Megaways slot both in terms of theme and gameplay. The features here are very simple and it’s a good way to try out a Megaways title if you’re used to playing classic fruit machines.

The only really extra is the Free Spins feature with an increasing multiplier which we’ve seen in plenty of slots. This isn’t a game if you’re looking for loads of variety and originality. The simple setup, rather classy design and volatile gameplay still make for a rather playable combination.

It does offer 18,500 x stake max wins per spin which cannot be won on any classic fruit machine style slot I’ve come across. If you like old school fruit machines, 4 Diamond Blues Megaways is worth a closer look.

However, there are many better Megaways titles such as Bonanza Megaways (Big Time Gaming), Royale with Cheese Megaways (iSoftBet) and Invaders Megaways (WMS). For more details, check out the full list of Megaways slots.

4 Diamond Blues Megaways FAQs

What is the 4 Diamond Blues Megaways RTP?

The 4 Diamond Blues Megaways RTP rate is 96.4% which is slightly better than average. The hit frequency rate is 37.24% and the variance is high.

What is the 4 Diamond Blues Megaways max win?

The maximum win per spin is 18,500 x your total stake. The key to winning big is from the increasing multiplier in the free spins which doesn’t reset after a losing free spin.

Are there any 4 Diamond Blues Megaways free spins?

Yes, the Free Spins feature begins with at least 12 free spins with unlimited retriggers available. They come with an increasing multiplier for every Rolling Reel win. The multiplier cannot reset either.

Is there a 4 Diamond Blues Megaways demo?

Yes, the 4 Diamond Blues Megaways free play version is available here at Online-Slot.co.uk. You can play it on desktop, tablet and mobile devices.

4 Diamond Blues Megaways Slot Information

  • Game:
    4 Diamond Blues Megaways
  • Provider:
  • Type:
    Megaways Slot
  • Reels:
  • Paylines:
    Up to 117,649
  • Stakes Range:
    10p to £20
  • Bonus Features:
    Yes (3)
  • Free Spins/Multiplier:
  • RTP %:
  • Max Win:
    18,500 x
Review by Chris Taylor

Review by Chris Taylor

Chris is a slots expert that has reviewed and played over 4,000 online slots. Having being in the iGaming industry for over 16 years, he knows how slots work, how bonus features are triggered and how the RTP and variance affect the gameplay.

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