Jack Hammer 3 Diamond Affair
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Jack Hammer 3 Diamond Affair
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Jack Hammer 3 Diamond Affair Slot Review

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How to play Jack Hammer 3 Diamond Affair mobile slot

The most famous NetEnt detective is back! The Jack Hammer 3 Diamond Affair slot continues along the time honoured tradition of giving you Sticky Wins, Respins and plenty of wins.

Jack Hammer 3 is a 5 reel 6-row slot machine with scatter pay mechanics. You’ll find Sticky Wins, Respins, Multipliers, Free Spins and a Buy Bonus option. The RTP is 96.08%, and the max win is 1332 times your bet.

Once upon a time, if all you played was Jack Hammer 2 slot but then moved on to more modern ware… you are going to be grinning from ear to ear. Why? Because Jack is back, but wearing a brand new fresh coat you will love.

Gone are the boring 5×3 reels; now you get 6 rows of comic book-inspired pictures, where symbols pay as scatters – get 5 or more anywhere on the reels, and you’ve got a win. But the fun doesn’t stop there as the rest of the reels re-spin, and you can catch even more winning symbols and far bigger wins.

Sticky Wins are back, but now you there are Multipliers

The reels are huge – you will need more than a 5-symbol win to get anything decent in the bank. Even a screen full of symbols probably won’t do it. What you need is Jack.

This Jack Hammer 3 Diamond Affair game adds mystery multipliers to the reels. 2 or more Jack Hammer symbols caught in a sticky win respin will upgrade low-paying symbols into higher-paying ones or add multipliers to high-paying symbols.

Those multipliers are how you get anywhere close to 1,000x your bet. It’s not an easy feat, but it’s made easier in the free spins. Why? Because during the free spins, the multipliers don’t reset between spins.

Jack Hammer 3 Diamond Affair slot is mid to high volatility

The top isn’t huge, but remember that this is the top win for 1 spin. So, if you manage to get the highest-paid symbol on a sticky win, with the highest multiplier, you can then do it again, or close to, on a second free spin win.

Ultimately, the fun is in watching those symbols re-spins and catching a chain reaction that will see you walk away with a little over 1,000x your bet. If you manage half that (our biggest win was 234x our bet), walk away and come back to fight crime another day.

Jack will be here waiting. Ready to fight crime with a huge ‘Kapow!’ written in blazing technicolour.

Jack Hammer 3 Diamond Affair is for those who are nostalgic for the original Jack Hammer slot but want fancier slot mechanics and better wins.

Related Slots: Try more NetEnt mobile slots including the popular Fruit Shop Megaways and Finn’s Golden Tavern.

Game Screenshots

Jack Hammer 3 Diamond Affair slot stats

Mobile Slot released5th March 2024
Slot typeVideo Slot
Slot reels / paylines5 Reels / 256 Ways to Win
House edge / RTP3.92% / 96.08%
Slot volatilityMedium/High
Min/Max bet0.20 / 200
Max win1332x
Free spins10 to 20 Free Spins / Sticky Mystery Symbol Multipliers
Bonus roundsSticky Wins, Scatter Pay, Wild, Symbol Upgrade, Scatter, Free Spins
Slot ThemesComics & Superheros
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Bonus Features

Scatter Pays: 8 or more symbols anywhere on the reel will pay according to the paytable.

Wild: Wild substitutes for all symbols except for free spins and Jack Hammer symbols. Wild symbols will always replace the highest winning combinations.

Sticky Wins: When you get any win on the reels, those symbols stay sticky on the reels, and all the other symbols will re-spins. If you get more of the same symbols, these will lock into place, and you'll get another re-spin. This continues until no more winning symbols show up on the reels. You will then be paid out for all the scatter symbols on the reels,

Jack Hammer Feature: The Jack Hammer symbol can appear during the re-spins or the free spins. If you form a low win symbol, one or two Jack Hammer symbols will transform all low win symbols on the reels into the next higher-up on the paytable.

During a high win symbol win, however, things get more interesting. The high win symbol will be added to the mysterious multiplier on the reels above. High Win symbols added to the mysterious multiplier require 8 symbols for an x2, x3, and x4 multiplier. For multipliers x5 and higher, you will need 20 symbols.

Each Jack Hammer symbol increases the multiplier in the progression bar separately. During the base game, the multiplier bar disappears once the re-spins end. In the free spins, these multipliers persist.

Scatters and Free Spins: 5, 6, 7, 8, 9 or 10+ scatters will trigger 10, 12, 14, 16, 18 or 20 free spins. The Mysterious Multiplier feature and free spins are sticky throughout the free spins - they do not reset between re-spins.

Buy Feature: Free Spins can be bought for 75x your bet.


  • Sticky Wins with Respins
  • Free Spins with Sticky Mystery Multipliers
  • Exciting detective slot theme
  • High 96.08% RTP
  • Scatter Pays create more wins


  • Low 1,332x top single spin win

Jack Hammer 3 Diamond Affair Review Conclusion

The Jack Hammer 3 Diamond Affair is peppered with a little bit of everything you could want from a mid-variance slot machine. Yes, we wish the top win was a little higher; 1332x seems paltry compared to the big wins of Beat the Beast: Dragon Wraith or Pompeii Megareels Megaways.

But the fun you'll have watching those sticky wins respin will be worth it, especially when Jack Hammer comes around and adds multipliers to the symbols at hand.

Here's a real money slot game where you might actually walk away with 1,000x your bet, and you won't have to jump through a million hoops to get there. You just have to bet 0.20 to 200 a spin and watch as the famous detective tracks down Lady Venom and gives you the diamonds.

Fun and a great addition to your gameplay rota at any good NetEnt casinos online.

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Review by Lucky Mobile Slots, last updated: March 16, 2024 - Rating 4

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