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Operation: Diamond Hunt slot review

Added by Kalamba Games. Information last updated: 06/04/2021

User rating:

- (0)

Expert rating:

3.5 (1)

Game information

Game supplier:Kalamba Games

Release date:10/2019



Max. win:bet x 10000

Mobile version:Support all devices

Play Operation: Diamond Hunt



Non standard reels



Multiplier wilds


Adventure & action

Heroes & villains

Riches & luxury


User ratings (0)

Game design:



Game sounds:

Mobile gaming:



Screenshot Screenshot Screenshot
RTP (Return to player):
Max. win:
bet x 10000

Bojoko score (compared to other slots on Bojoko)
Kalamba Games score (compared to other slots of supplier)

Expert's review Trystan Michielsen

Slot tested

Operation: Diamond Hunt puts the player in the shoes of an international spy on the lookout for a bunch of diamonds. Among the fast cars, golden yachts and beautiful women they’ll also encounter jackpots, free spins and multiplier wilds.

This slot was developed and released in 2019 by Kalamba Games, a rather new studio that is still hard at work making a name for itself. That’s not to say their slots aren’t well-developed but we can definitely see that they might have to invest their time and efforts wisely, having to make choices the bigger studios don’t. The game itself takes place in what seems to be an enormous luxurious castle, while the playing field involves 6 reels and rows that grow in size from 3 to 5 rows and back to 3.

As a result, players have the possibility of grabbing wins on any of the 3,600 win lines. The reels themselves are filled with various symbols that make it clear we’re heading into the opulent world of the ultra-rich. Where even the low-paying card letters are studded with diamonds and the high-paying symbols involve diamond watches, silver guns, roulette wheels and slick sports cars.

Here we can also see that the studio has limited resources as the symbols are somewhat simple and lacking detail, while also not blessed with many animations. It makes the entire game look somewhat static even though the ideas are good. The low-paying symbols are especially simple, although adding diamonds to them was a simple but effective way to make them feel somewhat related to the setting.


Operation: Diamond Hunt does an okay job at setting the scene with its symbols, creating the visual we’ve come to expect from spy movies and novels. The Wild symbol seems to be the agent which is surrounded by all sorts of extravagant items and intense luxury. It makes it feel appropriate for the idea behind the slot, even though they don’t really interact with each other.

The game has High Volatility which comes to play quite often. I found the slot to be rather hard to get wins with during the regular gameplay, and I saw my funds drop rather steadily as a result. The slot offers the possibility of picking a bet between £0.40 and £165 per spin, which is quite a wide range compared to other games. With a max. win of 10,000x your bet, the potential jackpot is consequently enormous but don’t count on winning it.

Besides that, the slot features 3 separate progressive jackpots that can be won by collecting gold symbols on the screen. Since the jackpots are progressive there’s no clear amount to list, but they are divided into silver, gold and platinum.

The symbols in the game include:

  • Free Spins: With 3 or more free spins symbols on the screen the free spins mode is activated. Get 16.5x your bet with six-of-a-kind on the screen.
  • Wild: Wilds substitute the regular symbols in the game, not counting the free spins symbols.
  • Gold Gun: Max. 2.5x your bet with six-of-a-kind on a winning payline.
  • Gold Car: Max. 2x your bet with six-of-a-kind on a winning payline.
  • Yacht: Max. 1.5x your bet with six-of-a-kind on a winning payline.
  • Red Car: Max. 0.75x your bet with six-of-a-kind on a winning payline.
  • Silver Gun: Max. 0.75x your bet with six-of-a-kind on a winning payline.
  • Silver Watch: Max. 0.75x your bet with six-of-a-kind on a winning payline.
  • Roulette Wheel: Max. 0.75x your bet with six-of-a-kind on a winning payline.
  • Ace: Max. 0.4x your bet with six-of-a-kind on a winning payline.
  • King: Max. 0.4x your bet with six-of-a-kind on a winning payline.
  • Queen: Max. 0.4x your bet with six-of-a-kind on a winning payline.
  • Jack: Max. 0.4x your bet with six-of-a-kind on a winning payline.
  • 10: Max. 0.4x your bet with six-of-a-kind on a winning payline.
  • 9: Max. 0.4x your bet with six-of-a-kind on a winning payline.


Operation: Diamond Hunt has quite a few features for a slot that at first glance keeps things simple. Players are engaged throughout the game with these different elements that can activate at random times.

The features include:

  • Non-Standard Reels: The playing field is 6 reels, but they are different lengths. Reels 1 and 6 are 3 rows high, reels 2 and 5 are 4 rows high, reels 3 and 4 are 5 rows high.
  • Gold Symbols: Players can choose to activate Gold Symbols, making it possible for gold variations of the 3 high-paying symbols to appear on the screen.
  • Multiplier Wilds: During the free spins mode, multiplier wilds are active that apply a 2x or 3x multiplier to any win they’re a part of.
  • Progressive Jackpots: There are 3 progressive jackpots that can be won by getting the right number of gold symbols on the screen.
  • Free Spins: With 3 or more free spins symbols on the screen the free spins mode is activated.

I thought the most unique part of the slot was the gold symbols feature. Even though this isn’t only present in this slot it’s not very common and adds some variety. The 3 high-paying symbols: the car, the yacht and the gun, all come in gold variations that will award bigger wins. Players can pick to activate 1, 2 or all 3 of these during the game, obviously having to pay more if they choose to do that.

The free spins mode turns the lights off in the game and shows us some motion sensors near the floor as the heist begins. Although this mode offers multiplier wilds and I did get some bigger wins this way, activating this mode turned out to be very hard and as a result, it didn’t offer much help.

In Conclusion

Operation: Diamond Hunt is a nice slot that is made by a smaller studio that had to choose how much time they were going to spend on its look and its features. By picking the features I think they delivered a more engaging slot while the graphics are maybe a bit outdated already.

That said, the gameplay is what sticks with you and I felt like I had a good time playing this game. I even managed to hit the gold jackpot during my time, which isn’t quite the highest win is still a nice increase to my funds. I think I should mention that even with this jackpot win I still hadn’t recovered my losses, so keep that in mind.

If you’re looking for a slot that throws a lot of features at you but keeps the core gameplay relatively intact, you will get a kick out of this game. I think that even though the graphics aren’t as good as those from bigger studios they do a good job at setting the mood regardless.

Overall rating:


Play Operation: Diamond Hunt for free

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  • Features

    Wins and bets

    RTP (Return to Player):97.27%


    Max. win:bet x 10000

    Min. bet:£0.4

    Max. bet:£165

    Progressive jackpot:

    Reels & playlines



    Non-standard layout:

    Max. lines:3600

    Min. lines:3600

    Win both ways:

    Other features


    Expanding reels:

    Stacked symbols:

    Colossal symbols

    Auto play:

    Turbo play:

    Quick play:

    Virtual reality:

    Bonus features

    Bonus game:

    Random bonus:

    Progressive bonus:

    Buy bonus:

    Free spins:

    Scatter symbols:

    Bonus game symbols:


    Standard wilds:

    Sticky wilds:

    Walking wilds:

    Stacked wilds:

    Random wilds:

    Multiplier wilds:



    Walking re-spins:

    Sticky re-spins:

    Cascading reels:

    Sticky wins:


    You can play Operation: Diamond Hunt in English, Finnish, Swedish, German and 9 other languages.

    All supported languages:
    English, Finnish, Swedish, German, French, Spanish, Italian, Russian, Czech, Danish, Norwegian, Portuguese


    Operation: Diamond Hunt supports GBP, EUR, SEK, NOK and 8 other currencies.

    All supported currencies:
    GBP (£), EUR (€), SEK (kr), NOK (kr), DKK (kr), RUB (₽), USD ($), NZD ($), CAD (C$), AUD ($), mBTC (m฿)


    Release date 10/2019
    18th newest on Kalamba Games 790th newest on Bojoko
    RTP 97.27% 1.41% > average
    7th highest on Kalamba Games 50th highest on Bojoko
    Win up to 10000 x your bet
    8th highest on Kalamba Games 452nd highest on Bojoko
    Paylines 3600 17900% > average
    5th highest on Kalamba Games 170th highest on Bojoko
    Min bet £0.4 per spin
    5th lowest on Kalamba Games 2,325th lowest on Bojoko
    Max bet £165 per spin
    6th highest on Kalamba Games 530th highest on Bojoko
    Rated 0 by 0 members
    The most rated on Kalamba Games 39th most rated on Bojoko
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    Expert's profile


    Trystan Michielsen

    Trystan Michielsen

    Trystan Michielsen is a Dutch native who started his career as a content writer for various small businesses who were interested in creating an online presence.

    When the opportunity arose to move to Malta and work in the iGaming sector, Trystan didn't hesitate to make the plunge. Here he worked as a Content and SEO specialist for different companies before moving back home.

    Now acting as a freelancer he maintains his connection with the online slot community by playing and reviewing the wide variety of videoslots that are released.

    Trystan enjoys playing the slots that offer a full experience, focusing on more than just the technical details but keeping an eye on its presentation. Graphics, music and style can create a game that's more than the sum of its parts.

    A writer at heart, putting thoughts to paper is something he's done for as long as he remembers. In his free time, he enjoys writing fiction as well as watching and reviewing movies.

    Latest reviews:
    Operation: Diamond Hunt cover

    Game supplier:Kalamba Games

    Release date:10/2019

    RTP (Return to player):97.27%

    Max. win:bet x 10000

    Mobile version:Yes

    User rating: 0
    Expert rating: 3.5

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