Game Rules:
Diamond Charge Hold and Win Slot
The Diamond Charge Hold And Win slot was developed and released by Iron Dog Studio in October 2025. Players who are familiar with this developer's slot catalogue may recognise this title, as it is an addition to the increasingly popular ‘Diamond Charge’ series. However, Diamond Charge Hold And Win stands out from the others with its unique hold and win feature, which is quite common among new slots today.
Diamond Charge Hold And Win Game Background
The Diamond Charge Hold And Win slot shares a similar reel setup to many other online slots in the series, with gameplay set across a 5x3 layout. There are 30 fixed paylines where matching combinations can form across the paygrid here, beginning from the left-hand reel.
Blue shining elements dominate the background of the Diamond Charge Hold And Win slot, which is not a surprise, given the overall gem theme. The playgrid is layered in jet-black colour, so the symbols stand out clearly, and it's lined in gold to support the themes of treasure and riches. The Grand, Mega, Major, Minor, and mini are all located to the left of the playgrid. And the buttons and core mechanics are all located at the bottom of the screen, like many Iron Dog Studio releases are today.
As mentioned, Diamond Charge Hold And Win is part of a wider series of slots, with other notable titles including Diamond Charge Megaways and Diamond Charge Extra.
Diamond Charge Hold And Win Slot Symbols
The Diamond Charge Hold And Win slot features lower-value symbols resembling classic cards, like those found in a live casino, all decorated with gem imagery. The higher-valued symbols include rare gems like a diamond, an emerald, a ruby, and a Sapphire. And there is also a blank symbol, which is a placeholder for combinations that do not form.
Lower Value Symbols:
Jack
Queen
King
Ace
Medium Value Symbols:
Emerald
Ruby
Sapphire
Higher Value Symbols:
Diamond
In the Diamond Charge Hold And Win slot, the wild is the symbol with the yellow text ‘wild’ and the lightning surrounding it. There is also a collect symbol that has yellow colours and lightning surrounding it, not to mention the special bronze, silver, gold, or jackpot prize coins that can land in play.
Diamond Charge Hold And Win Bonus Features
The wild in Diamond Charge Hold And Win can only appear on reels 1 to 5, and the wild is able to substitute for all non-special symbols to form or increase a combination when possible.
The special collector symbols in Diamond Charge Hold And Win are able to land on the 1st and 5th reels of play only. These symbols can collect the values of all bonus coin symbols that land in the same spin, and if 2 collectors land simultaneously, any prize values are collected twice. The potential prize value coins these symbols can collect include:
Special bronze coin symbols with prize values worth 0.5x, 1x, 1.5x, or 2x the stake.
Special silver coin symbols with prize values worth 2.5x, 3x, 3.5x, 4x, or 4.5x the stake.
Special gold coin symbols with prize values worth 5x, 6x, 7x, 8x, or 9x the stake.
Special prize symbols with the Mini (10x), Minor (20x), Major (50x), Mega (250x), or Grand jackpot (1,000x) prizes in play.
The hold and win in Diamond Charge Hold And Win is triggered through the landing of the bonus symbols in play in a single spin. The bonus game begins with 3 respins, in which only bonus and collector symbols are capable of landing on the reels. Any bonus symbol which does land in play becomes sticky on the grid and keeps its position until the feature comes to an end; it also resets the respin count to 3.
Landing a collector symbol during these respins will collect the values of all prize symbols on the reels and remove them from the grid. This bonus feature comes to an end when the respins run out or the entire playgrid is filled with bonus prize coin symbols.
The Coin Shower bonus feature is triggered completely at random in play and throws 6 of the triggering bonus symbols onto the grid to unlock the Hold & Win bonus.
Diamond Charge Hold And Win Mobile Play
Like many other games on the online casino market, Diamond Charge Hold And Win can be played across desktop and laptop PCs, tablets, and smartphones. Thanks to HTML5 software, this title can be accessed on devices with varying screen sizes and delivers high-quality visuals across all devices. Players with a secure internet connection can enjoy a variety of games at BOYLE Sports, from Megaways slots to classic live casino table games.
Play Diamond Charge Hold And Win at BoyleSports
Overall, the Diamond Charge Hold And Win slot game has been well-crafted by Iron Dog Studios, with a gem theme at its core, and features great visual and gameplay detail. A similar gem setting can be found in slots like Vegas Diamonds and Radiant Gems, among many others, within the online casino market.
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