Super Diamond Charge Slot
Get 100 Free Spins when You Bet £20
Provider
Type of Slot
Theme
Reels
Paylines
Stakes Range
Bonus Features
Free Spins
Multiplier
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RTP
Volatility
Super Diamond Charge Demo
Recommended Casino
3,000+
Up to 24 hours-
United Kingdom (UKGC)
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Super Diamond Charge Slot RTP, Details & Wager Limits
You’ll be spinning across a 5×3 grid with 10 fixed paylines in the Super Diamond Charge slot game. To collect a payout, matching symbols must line up on adjacent reels, starting from the far-left reel, as in most classic online slots.
It’s easy to get started, with bets starting at just 20p. On the other hand, the maximum stake is £45, which is a bit lower than what many new online slots offer. Even more so, in markets outside the UK, the cap is £5.
Note: To change yours, tap the coins icon and adjust it using the plus and minus buttons.
Other than that, non-UK Super Diamond Charge casinos include both autoplay for 5 to 99 spins and quick spin to shorten the interval between rounds.
One area where Iron Dog Studio falls behind here is the Super Diamond Charge RTP. At 95.07%, it’s below the industry average and what I’d normally expect from the best online casino slots. However, if long-term payout potential is high on your list, you’ll probably find better value in our roundup of the highest RTP slots.
This one also carries medium to high volatility, so its payout profile leans toward less frequent but more valuable wins. The 6,000x Super Diamond Charge max win won’t compete with the industry’s biggest figures, although it’s still high enough to make feature triggers worthwhile.
My strongest return during my Super Diamond Charge demo runs came to around 245x my stake, which practically means there’s still considerable distance between a good bonus and the game’s theoretical ceiling.
Super Diamond Charge Theme—A Jewellery Vault Powered by Progressive Jackpots
The visuals in Super Diamond Charge revolve entirely around diamonds and progressive jackpots, without introducing any real storyline. All you’ll see is a large diamond floating above the reels, and gold framing surrounding the grid. Plus, blue and purple light beams in the background help create the impression of energy radiating from the centre.
The audio features a fast-paced electronic soundtrack that plays throughout. Sparkling effects and celebratory sounds support spins and wins.
The paytable begins with the standard card royals from J to A, as in many other free slots online. They’re followed by a collection of colourful gemstones that steadily increase in value. The Diamond is the highest-paying regular symbol, while the Wild pays only when it forms a winning combination by itself. Additionally, the Bonus Coin has its own role beyond standard payouts.
Below is a complete overview of what each symbol pays at UK slot sites:
| Symbol | Payout / Info |
 J | 3, 4, or 5 = 0.6, 1.2, or 4x the stake |
 Q | 3, 4, or 5 = 0.6, 1.2, or 4x the stake |
 K | 3, 4, or 5 = 0.6, 1.2, or 4x the stake |
 A | 3, 4, or 5 = 0.6, 1.2, or 4x the stake |
 Blue Gem | 3, 4, or 5 = 1.2, 4, or 12x the stake |
 Pink Gem | 3, 4, or 5 = 1.2, 4, or 12x the stake |
 Green Gem | 3, 4, or 5 = 1.2, 4, or 12x the stake |
 Diamond | 3, 4, or 5 = 2, 6, or 25x the stake |
 Wild | 3, 4, or 5 = 2, 6, or 25x the stake; substitutes for all non-special symbols and appears on reels 1-5 |
 Bonus Coin | Displays a cash value during the Hold & Win feature |
Super Diamond Charge Mobile Slot
Playing Super Diamond Charge at mobile casinos doesn’t take anything away from the experience. Navigation is straightforward, and spin controls are comfortably positioned. The game remained responsive throughout my testing.
You can play in either portrait or landscape, but I preferred the latter. It makes better use of the available space, in my personal opinion, especially with the jackpot display permanently visible beside the reels rather than below.
Super Diamond Charge Bonus Features
The feature set in Super Diamond Charge is intentionally compact. More specifically, it focuses on Hold & Win while giving it an extra push through the Coin Shower mechanic. Below, I’ll explain exactly how each one works.
Hold and Win
Land 6 or more Hold & Win symbols to trigger the feature. These include:
- Bonus symbols (0.5x to 10x)
- Collector symbol
- Mini (15x)
- Minor (50x)
- Major (150x)
- Jackpot
Once the feature begins, all Hold & Win symbols lock into position, and you’re awarded 3 respins.
Whenever a new Hold & Win symbol lands, the respin counter resets to 3. If a Collector symbol is already on the grid when the feature starts, or lands during it, it immediately collects every cash and jackpot value currently visible on the reels. Yet, keep in mind that collection always happens from top to bottom and left to right, although Collector symbols never collect other Collector symbols.
Each respin also has a random chance of placing 2x, 3x, 4x, or 5x multipliers onto board positions. These multiply the value of any Bonus symbol that lands there, with multiple multipliers able to stack together.
The feature ends when you fail to land a new Hold & Win symbol within 3 respins or fill the entire grid, with a full board awarding the 5,000x Mega Jackpot.
Coin Shower
The Coin Shower can only activate when at least one Hold & Win symbol is already on the reels. When triggered, it drops enough additional Hold & Win symbols onto the board to immediately meet the 6-symbol requirement and launch the Hold & Win feature.
Super Diamond Charge Verdict: Looking Beyond Another Diamond Theme
Most of what Super Diamond Charge has to offer comes once the bonus triggers. In other words, the Hold & Win feature is easily the highlight, but the regular spins can feel a bit repetitive between triggers.
I think Super Diamond Charge is one of those slots that grows on you after a few bonus rounds. On paper, there’s nothing here that immediately grabs your attention, but once you understand how everything works together, it becomes much easier to appreciate.
Is the diamond theme anything new? Not really. And would I have liked a stronger RTP? Absolutely. But it’s the kind of compromise that often comes with jackpots. And I also came away feeling that Iron Dog Studio didn’t overcomplicate something that didn’t need fixing. There’s value in this kind of slot, and I’m all for it.
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Charlon is an accomplished iGaming professional with years of experience in the UK and Irish markets. If you need expert advice on online casinos and slots, he’s the one to turn to. His deep knowledge and insights into the industry make him a trusted resource for guidance and recommendations.
