Iron Dog Studio

Diamond Charge Hold & Win

Electrified gem slot focused on cash collection and respins

SlotRanker Score

/ 99

05099

The SlotRanker Score is calculated from the visible data below. It is not affected by affiliate deals, and it cannot be bought.

How this score is built

RTP

95%

return to player

Volatility

Medium/High

variance

Max win

5,000×

top multiplier

Min bet

$0.10

per spin

Reels

30 lines

Player rating

4.4 ★

14 votes

DEMO Play free, no signup

Iron Dog Studio

Embed on your site

4.4 / 5

14 ratings

User ratings are shown separately from the Slot Score unless stated otherwise.

Five weighted signals shape the composite. Four context signals refine ties. See how we rate for the full methodology.

Payouts & RTP8/10

RTP 95% → 8.0/10

Volatility9/10

high → 9.0/10

Win Potential7.4/10

x5000.00 (5000×) → 7.4/10

Features10/10

12 features → 10.0/10

Game Mechanics7.3/10

f=12 r=5 p=30 → 7.3/10

Context signals (tie-breakers)

Layout5/10

3x5 → 5.0/10

Bet Flexibility6/10

0.1–50 (×500) → 6.0/10

Provider Reputation6.9/10

provider avg 6.9 → 6.9/10

Popularity2.5/10

synthetic proxy → 2.5/10

Popularity blends real player search demand (~30 markets) with a catalogue-derived proxy; games without measurable search demand use the proxy alone. Not live play telemetry.

Cite this score

SlotRanker Score: 71 — Diamond Charge Hold & Win by Iron Dog Studio

https://slotranker.com/iron-dog-studio/diamond-charge-hold-and-win#score

How to cite

Slot Summary

Collecting every visible cash value in one landing is the central promise before Diamond Charge Hold & Win even reaches its respin round. Iron Dog Studio pairs that Cash Collector with a 30-payline gem slot, where six or more Bonus Coins start three respins and each new coin resets the counter. Five fixed jackpots and a x5000.00 ceiling make the bonus board, rather than ordinary line wins, the main source of scale.

How It Plays

Base play uses five reels and 30 paylines, with the Wild substituting for regular paying symbols while Bonus Coins establish the route toward Hold and Win.

The game shifts from line evaluation to position filling after the bonus starts, making each newly occupied space matter because it renews the respin count.

Theme & Atmosphere

Gems supply the visible identity, while electrical effects turn the familiar jewel theme into a charged machine rather than a traditional treasure display.

The Luxury theme comes through polished stones, cash values, and named jackpot tiers, keeping the presentation focused on concentrated value instead of a narrative setting.

Gems Luxury

Features & Win Potential

The Cash Collector appears on the outer reels and adds visible Bonus Coin and jackpot values, giving one symbol control over the board's accumulated total.

Wild Symbol support belongs to the base game, while Bonus symbols, Sticky Symbols, Fixed Jackpots, and Respins become more important once Hold and Win begins.

Multiplier Wild Symbol Respins Bonus Game RTP range Bonus symbols Hold and Win Random multiplier Fixed Jackpots Cash Collector Additive symbol Sticky Symbols

Bonus & Free Spins

Six or more Bonus Coins activate Hold and Win with three respins. New coins remain in place and reset the counter whenever they occupy an empty position.

The round ends when the respins expire or all 15 positions are filled. Cash values and any fixed jackpot awards are then added together.

Spec sheet

Diamond Charge Hold & Win at a glance.

Identity

Slot nameDiamond Charge Hold & Win

StudioIron Dog Studio

Released9/2/2025

Math

SlotRanker Score71

RTP95%

VolatilityMedium/High

Max win5,000×

Bet range$0.10 – $50.00

Player rating4.4 / 5 · 14 votes

Format

Reels5

Paylines30

Layout5x4

Features

Themes

Expected average based on this slot's 95% RTP — individual sessions vary with volatility.

Bet per spin

Spins per hour400

Session length (hours)

Cost per hour$2.00

Cost per session$2.00

Estimate only, for entertainment purposes — treat gambling as entertainment, not a way to make money, and set a budget you can afford to lose.

How long could a bankroll last on Diamond Charge Hold & Win? We simulate thousands of sessions from this game's published RTP and volatility — the long-run math, not a prediction of your next spin.

Bankroll ($)Bet per spin ($)Speed

Volatility tier: Medium-High

Running simulation…

How this works

Each simulated spin either misses or returns a win drawn from a log-normal distribution, with the hit rate and spread set by the slot's volatility tier (Medium-High). The model is calibrated so the average return equals this slot's published RTP (95.00%), with wins capped at its top multiplier (5,000×).

This is a simplified, parametric model of the game's math — not its real paytable. It exists to make the house edge visible over many sessions, so the numbers above are averages across thousands of runs, never a forecast of one.

This is math, not a prediction. Real sessions vary wildly, and no strategy changes a game's built-in house edge. Play for fun, set limits, and never bet more than you can afford to lose.

Where to play Diamond Charge Hold & Win

No matching casinos for your region yet

Casino availability depends on where you play from. We only show casinos that accept players from your country.

Compare Diamond Charge Hold & Win with other games

	Diamond Charge Hold & Win Score 71This game	Max Megaways Score 89	Bling Bling Penguin Score 87	Double Diamond Night Score 85	Tumblin' Dublin Score 84
Identity
Studio	Iron Dog Studio	Big Time Gaming	Ino Games	Popiplay	NetGame Entertainment
Released	9/2/2025	9/21/2022	6/5/2023	11/6/2023	9/25/2023
Math
RTP	95%	96.37%	96.5%	96.11%	96.34%
Volatility	Medium/High	High volatility	High volatility	High volatility	High volatility
Max win	5,000×	139,200×	13,500×	10,200×	6,000×
Format
Reels	5	6	5	7	5
Layout	5x4	6x7	5x3	7x8	5x5
Paylines	30	117649	243	Pay Anywhere	3125
Min bet	0.1	0.2	0.2	0.2	—
Max bet	50	3	20	25	—
Features
Progressive	—	—	—	—	—
Wild symbol	✓	✓	✓	—	✓
Free spins	—	✓	✓	✓	✓
Scatter symbol	—	✓	✓	✓	✓
Multiplier	✓	✓	—	—	✓
Bonus game	✓	—	✓	—	—
Respins	✓	—	✓	—	—

Every number is shown as a delta against Diamond Charge Hold & Win.

Comparing against

Diamond Charge Hold & Win

Iron Dog Studio

RTP

95%

Max win

5,000×

Score

+ Free Spins+ Scatter− Bonus Game− Respins

+ Free Spins+ Scatter− Multiplier

+ Free Spins+ Scatter− Wild− Multiplier− Bonus Game− Respins

Tumblin' Dublin

NetGame Entertainment

+ Free Spins+ Scatter− Bonus Game− Respins

Explore More Games with Similar RTP

	Provider	RTP	Volatility	Max win	Score
House of Fun	Betsoft	94.96%	Medium volatility	—	66
Mystic Panther Treasures of the Wild	Infinity Dragon Studios	94.97%	High volatility	14,000×	71
Wild Fox	BGaming	94.98%	Medium volatility	2,000×	70
Cyber Wildz	Greentube	94.99%	High volatility	20,000×	73
Diamond Charge Hold & Win	Iron Dog Studio	95%	Medium/High	5,000×	71
Gold Rush Frenzy Megaways	Four Leaf Gaming	95%	High volatility	50,000×	83
Monkey God Hold and Win	Kalamba Games	95.01%	High volatility	10,000×	77
Rabbit Garden	Pragmatic Play	95.02%	High volatility	10,000×	82
Megapearl Gigablox	ReelPlay	95.03%	High volatility	16,297×	81
Diamond Tales: The Ugly Duckling	Greentube	95.04%	High volatility	50,000×	80
Stinkin' Rich Super Rich Re-Spins	King Show Games	95.05%	High volatility	37,800×	76