NeverEnding

Thunder Diamonds

Retro diamond slot connecting classic lines with collector features

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

96.08%

return to player

Volatility

—

variance

Max win

3,000×

top multiplier

Min bet

$0.10

per spin

Reels

5 lines

Player rating

3.5 ★

12 votes

DEMO Play free, no signup

NeverEnding

Embed on your site

3.5 / 5

12 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 & RTP9/10

RTP 96.08% → 9.0/10

Volatility8/10imputed

imputed medium (unknown) → 8.0/10

Win Potential7/10

x3000.00 (3000×) → 7.0/10

Features6.5/10

7 features → 6.5/10

Game Mechanics4.7/10

f=7 r=3 p=5 → 4.7/10

Context signals (tie-breakers)

Layout4/10

3x3 → 4.0/10

Bet Flexibility6/10

0.1–75 (×750) → 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: 64 — Thunder Diamonds by NeverEnding

https://slotranker.com/never-ending/thunder-diamonds#score

How to cite

Slot Summary

For players who prefer a 96.08% RTP in a compact classic format, Thunder Diamonds makes its case through a 3x3 layout, five win lines, and a maximum win of x3000.00. NeverEnding positions it as a Modern Classic, pairing retro slot cues with Hold and Win, Fixed Jackpots, Respins, and a Cash Collector. It also serves as the earlier Thunder Diamonds title related to Thunder Diamonds x5000: Hold and Win.

How It Plays

Base play uses a small reel window and a fixed line structure, so results remain quick to read before any collector or jackpot feature takes over.

Once the Hold and Win portion becomes active, Respins shift attention from ordinary line results toward retained values and the game's Fixed Jackpots.

Theme & Atmosphere

The Gems theme centers diamonds within a retro slot-machine vocabulary, connecting the game to the golden-age imagery cited in its source material.

Storm scenery, lightning effects, and thunder sounds give the classic presentation a sharper charge without displacing the familiar diamond-led visual identity.

Gems

Features & Win Potential

Hold and Win changes the focus from regular line evaluation to retained positions, while Respins extend that dedicated feature sequence across further outcomes.

The Cash Collector supplies the collection element, and Fixed Jackpots give that process named targets beyond ordinary reel payouts during feature play.

The Wild Symbol remains part of regular slot play, while Bonus symbols and the Bonus Game add a separate layer beyond the collector sequence.

Wild Symbol Respins Bonus Game Bonus symbols Hold and Win Fixed Jackpots Cash Collector

Spec sheet

Thunder Diamonds at a glance.

Identity

Slot nameThunder Diamonds

StudioNeverEnding

Released4/7/2026

Math

SlotRanker Score64

RTP96.08%

Max win3,000×

Bet range$0.10 – $75.00

Player rating3.5 / 5 · 12 votes

Format

Reels3

Paylines5

Layout3x3

Features

Themes

Expected average based on this slot's 96.08% RTP — individual sessions vary with volatility.

Bet per spin

Spins per hour400

Session length (hours)

Cost per hour$1.57

Cost per session$1.57

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 Thunder Diamonds? 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: Mediumassumed — not published for this slot

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). The model is calibrated so the average return equals this slot's published RTP (96.08%), with wins capped at its top multiplier (3,000×).

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 Thunder Diamonds

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 Thunder Diamonds with other games

	Thunder Diamonds Score 64This game	Pine of Plinko 2 Score 90	Ruby Royal Score 89	7 & Gems Score 88	Max Megaways Score 89
Identity
Studio	NeverEnding	Print Studios	Popiplay	Fantasma Games	Big Time Gaming
Released	4/7/2026	12/7/2023	11/15/2024	12/8/2024	9/21/2022
Math
RTP	96.08%	96.32%	97.11%	96.18%	96.37%
Volatility	—	High volatility	High volatility	Medium/High	High volatility
Max win	3,000×	20,000×	10,100×	10,096×	139,200×
Format
Reels	3	5	5	5	6
Layout	3x3	5x3	5x3	5x3	6x7
Paylines	5	10	15	3600	117649
Min bet	0.1	0.1	0.1	0.2	0.2
Max bet	75	1	20	100	3
Features
Progressive	—	—	—	—	—
Wild symbol	✓	—	✓	✓	✓
Free spins	—	✓	✓	✓	✓
Scatter symbol	—	✓	✓	✓	✓
Multiplier	—	—	✓	✓	✓
Bonus game	✓	✓	✓	✓	—
Respins	✓	—	✓	✓	—

Every number is shown as a delta against Thunder Diamonds.

Comparing against

Thunder Diamonds

NeverEnding

RTP

96.08%

Max win

3,000×

Score

+ Free Spins+ Scatter− Wild− Respins

+ Free Spins+ Scatter+ Multiplier

+ Free Spins+ Scatter+ Multiplier

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

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