Diamond Heist Hold & Win

(iSoftbet) Slot Review

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Diamond Heist Hold & Win: Slot Overview

If you've ever tried selling jewellery, you'll know how quickly it can depreciate when it is no longer brand new. Take an unwanted engagement ring to a pawn shop, for example, and they weigh the gold, maybe measure the diamond, then you get to baulk, wide-eyed, at their offer. Either people aren't keen on buying second-hand jewellery, or it's not worth all that much, to begin with. Anyway, it makes you wonder if the robber in iSoftBet's slot Diamond Heist Hold & Win would give up the caper if he knew how little he could be getting when flogging his stolen goods. Then again, as well as diamonds, this bank is brimming with cash, which players have a chance to collect via Diamond Heist Respins or free spins.

The moment Diamond Heist loads, it gives off strong Blueprint Gaming vibes. From the cartoony feel, chunky symbols, in-game animations, to the finger-clicking Broadway soundtrack. The mass of searchlights, vaults, and other bank robbing imagery is kind of generic, but iSoftBet has done it in a charming way, setting you at ease and encouraging a spin or two to see what will happen.

Diamond Heist Hold & Win slot

Played on a 5-reel, 3-row game panel, players get 20 fixed paylines to land winning combinations on. You'll notice a sixth reel that unlocks when Heist Mode triggers. However, even when activated, this is a dead reel that never actually displays extra symbols. It's just a prop, really, adding a bit of eye candy during Heist Mode. Mathematically, Diamond Heist is no big-time crook, nor is it some petty thief - volatility has been rated by iSoftBet as 7.5 out of 10, while the default return to player value is 96%. Regular wins have a frequency of 26.5%, playing into the game's pacey nature, and relatively decent max wins are up for grabs.

Playable from 0.20 p/c to £/€20 a pop, the symbols used in Diamond Heist are your typical bank-robbing accoutrement. On the low side, we get a bunch of steel formed 10-A royals, then money, watches, gold bars, diamonds, and thieves as the high pays. A win line of 5 high pay symbols is worth 3 to 25 times the stake. The final symbol to round off this section is the wild, which can replace any pay symbol to form winning combinations.

Diamond Heist Hold & Win: Slot Features

Diamond Heist Hold & Win slot

Obviously, there is a hold & win feature in Diamond Heist Hold & Win, as well as Heist Mode, free spins, and random modifiers. Let's take a closer look at what they do.

Random Modifiers

On any base game spin, 1 of 3 modifiers may randomly trigger. These are:

  • Wilds Added – 3 to 6 wilds are added to the reels.
  • Mystery – 5 to 10 mystery symbols land, all transforming into the same symbol type.
  • Multiplier Win – a random win multiplier of x2, x5, or x10 is applied to the net paid winning spin.

Free Spins

Landing 3, 4, or 5 scatter symbols awards 8, 10, or 12 free spins. A win multiplier is introduced during this feature, starting at x1, and guaranteed to rise by 1 on every spin, where the new multiplier applies to the next free spin. It's possible to stretch out the feature by landing 2, 3, 4 or 5 scatters to win +3, +5, +10, or +12 additional spins.

Heist Mode

When 3 detonator symbols land in the base game, Heist Mode is triggered. Players get 20 Heist Spins (these are free), with diamond symbols added to the reels. If at least 5 diamond symbols land in Heist Mode at the same time, then Diamond Heist Respins are awarded.

Diamond Heist Respins

Triggering diamond symbols stick to the reels, and 3 respins are awarded. If new diamond symbols hit, they turn sticky and reset the number of respins back to 3. As well as diamonds, there are 3 jackpot symbols – Mini, Major or Mega worth x100, x250, or x500, respectively. Green Key symbols reset respins, too, and unlock an extra row. The round ends when spins drop to zero, or 3 alarm symbols are in view. Then, the values printed on each diamond symbol are paid out.

Diamond Heist Hold & Win: Slot Verdict

There's a sassiness to Diamond Heist Hold & Win, which makes it quite enjoyable. iSoftBet has boldly presented the game, matching the spirit of the amiable leading rogue character. It's funny, can you imagine someone tiptoeing down the road, a sack with a dollar sign printed on it slung over his shoulder, a mask barely covering their eyes, while sporting a five o'clock shadow of a beard? It's a dead cert they're up to no good.

Someone like that wouldn't last a minute on the street before the cops picked them up, but in a heist themed slot, this sort of get-up is a must. So is the Pink Panther-esque music and the relatively generic imagery. This type of game straitjackets developers to a degree, either they stick to the script or risk alienating players who dig the genre. iSoftBet has stayed close to the template while walking a fine line between familiar and new with the features. Like the sixth reel, Heist Mode feels a little superfluous, though they are free, which is nice. Presumably, you can go the whole 20 spins and not land five Money scatters. Yet, we never failed to progress to the respins feature from Heist Mode.

Maybe we were exceptionally lucky, but after a few times, Heist Mode became a formality. On the other hand, free spins were a lot harder to trigger. Again, using a multiplier that increases on every single spin isn't new, though the way it slams onto the reels and the sheer pace the bonus round is played means it gets pretty tense. Rewards aren't massive but fit the game, maxing out at 4,684x the bet.

For the most part, Diamond Heist plays things safe, but a few slight alterations and the above-average level of charm might win you over. If you're in the market for a lively, relatively unsophisticated streak respin slot, Diamond Heist Hold & Win could be alright.


Diamond Heist’s theme and features are old hat, but iSoftBet has presented them in a fresh, jazzy way to entertain players after a mid-level hold & win style slot.

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