Greentube

Diamond Mystery Fortune Streaks

Slots Video Slots Fruit Gems Fire Joker Strawberry Classic 777

Diamond Mystery fruit slot with guaranteed-win spins and jackpots

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

95.48%

return to player

Volatility

—

variance

Max win

—

top multiplier

Min bet

$0.50

per spin

Reels

40 lines

Player rating

4.0 ★

4 votes

DEMO Play free, no signup

Greentube

Embed on your site

4.0 / 5

4 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 95.48% → 8.0/10

Volatility8/10imputed

imputed medium (unknown) → 8.0/10

Win Potential—

no data

Features7.5/10

9 features → 7.5/10

Game Mechanics5.8/10

f=9 r=5 p=40 → 5.8/10

Context signals (tie-breakers)

Layout6/10

5x3 → 6.0/10

Bet Flexibility4/10

0.5–50 (×100) → 4.0/10

Provider Reputation5.5/10

provider avg 5.5 → 5.5/10

Popularity0/10

synthetic proxy → 0.0/10

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: 59 — Diamond Mystery Fortune Streaks by Greentube

https://slotranker.com/greentube/diamond-mystery-fortune-streaks#score

How to cite

Slot Summary

Fruit, fire, gems, and a Joker place Diamond Mystery Fortune Streaks in Greentube's classic-symbol lineage, while its four-level Progressive Jackpot and guaranteed-win spin round define the newer layer. This Diamond Mystery series entry uses 40 fixed paylines and a 95.48% RTP, with medium volatility directing attention toward feature triggers rather than frequent changes to the base format.

How It Plays

Base play checks adjacent matching symbols from left to right across 40 fixed paylines. The Joker Wild assists ordinary combinations but cannot replace the Fortune Streaks Scatter Symbol.

The central change arrives when enough Scatter Symbols land to start Win Spins. Every spin in that round guarantees a payout, and the feature cannot retrigger itself.

Theme & Atmosphere

Fruit, Strawberry, 777, and Joker imagery retain the recognizable language of a Classic slot, while Gems signal the separate Diamond Mystery prize system.

Fire details sharpen the contrast between the traditional symbols and the polished jackpot presentation, giving the familiar fruit format a more forceful visual register.

Fruit Gems Fire Joker Strawberry Classic 777

Features & Win Potential

The Wild Symbol appears on the middle three reels and substitutes for ordinary paying symbols. It cannot replace the Scatter Symbol used to activate Win Spins.

The Progressive Jackpot can activate after a non-winning spin, opening a Pick Objects sequence where concealed cards reveal gems connected to four different prize levels.

Free Spins Scatter Symbol Wild Symbol Bonus Game Additional Free Spins BonusGame: Pick Objects Bonus symbols Progressive Jackpot Risk/Gamble (Double) game

Bonus & Free Spins

The Free Spins feature is presented as Win Spins. Landing 3, 4, or 5 Scatter Symbols awards 7, 14, or 21 spins, and every spin guarantees a win.

The BonusGame: Pick Objects round presents 12 concealed cards. Selection continues until 3 matching gems appear, at which point the corresponding Progressive Jackpot level is awarded.

Spec sheet

Diamond Mystery Fortune Streaks at a glance.

Identity

Slot nameDiamond Mystery Fortune Streaks

StudioGreentube

Released11/20/2024

Math

SlotRanker Score59

RTP95.48%

Max win—

Bet range$0.50 – $50.00

Player rating4.0 / 5 · 4 votes

Format

Reels5

Paylines40

Layout5x4

Features

Themes

Expected average based on this slot's 95.48% RTP — individual sessions vary with volatility.

Bet per spin

Spins per hour400

Session length (hours)

Cost per hour$9.04

Cost per session$9.04

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 Mystery Fortune Streaks? 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 (95.48%), with wins capped at its top multiplier (1,000×).

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 Mystery Fortune Streaks

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Compare Diamond Mystery Fortune Streaks with other games

	Diamond Mystery Fortune Streaks Score 59This game	Flaming Joker Link & Win Score 78	Million 777 Hot Score 67	Joker Blast Bonanza Score 82	Hot Chilli Bells Score 79
Identity
Studio	Greentube	Barstruck	Red Rake Gaming	Pragmatic Play	BGaming
Released	11/20/2024	2/3/2025	11/7/2023	6/20/2023	1/24/2025
Math
RTP	95.48%	96.08%	95.5%	96.4%	97%
Volatility	—	High volatility	Medium volatility	High volatility	—
Max win	—	5,000×	2,894×	10,000×	5,000×
Format
Reels	5	5	6	6	5
Layout	5x4	5x3	6x5	6x5	5x3
Paylines	40	25	1000000	Pay anywhere	100
Min bet	0.5	0.1	0.2	0.2	0.6
Max bet	50	20	5	100	30
Features
Progressive	✓	—	—	—	—
Wild symbol	✓	✓	✓	—	✓
Free spins	✓	✓	✓	✓	✓
Scatter symbol	✓	✓	✓	✓	✓
Multiplier	—	✓	✓	✓	✓
Bonus game	✓	✓	✓	—	✓
Respins	—	✓	✓	—	✓

Every number is shown as a delta against Diamond Mystery Fortune Streaks.

Comparing against

Diamond Mystery Fortune Streaks

Greentube

RTP

95.48%

Max win

—

Score

Flaming Joker Link & Win

+ Multiplier+ Respins− Progressive

+ Multiplier+ Respins− Progressive

+ Multiplier− Progressive− Wild− Bonus Game

+ Multiplier+ Respins− Progressive

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01What is the RTP of Diamond Mystery Fortune Streaks?

The listed RTP is 95.48%. Published game information describes the volatility as medium and the game as using 40 fixed paylines.

02How are Win Spins triggered?

Landing 3, 4, or 5 Fortune Streaks Scatter Symbols awards 7, 14, or 21 Win Spins respectively, with every awarded spin producing a win.

03How does the Diamond Mystery jackpot work?

The Progressive Jackpot may trigger after a non-winning spin. The player reveals concealed cards until 3 matching gems identify the awarded jackpot level.

04What does the Joker Wild do?

The Joker Wild substitutes for ordinary paying symbols but not for the Fortune Streaks Scatter Symbol, and it appears only on the middle three reels.

Series

Diamond Mystery

View all 13 games

Game	Year	RTP	Volatility	Slot Score
Diamond Mystery 40 Imperial CrownGreentube	2023	95.48%	Medium volatility	50
Diamond Mystery 10 Imperial Crown DeluxeGreentube	2023	95.48%	—	50
Diamond Mystery 20 Imperial Crown DeluxeGreentube	2023	95.48%	Medium volatility	53
Diamond Mystery 100 Imperial Crown DeluxeGreentube	2023	95.48%	—	51
Diamond Mystery Fruitilicious deluxeGreentube	2024	95.48%	Low/Medium	53
Diamond Mystery - 40 Imperial Crown deluxeGreentube	2024		—	40
Diamond Mystery Stars InfernoGreentube	2024	94.25%	Medium volatility	57
Diamond Mystery 100 Wild FireGreentube	2024	95.48%	—	55
Diamond Mystery Fortune StreaksCurrentGreentube	2024	95.48%	—	59
Diamond Mystery - 40 Charming 7'sGreentube	2024	95.48%	—	49
Diamond Mystery - Fruitful Frenzy - Cash AccumulatorGreentube	2025	95.48%	Medium volatility	56
Diamond Mystery - 100 Charming 7'sLatestGreentube	2025	95.48%	—	49
Diamond Mystery - 40 Charming 7's 6reelsGreentube	—		—	31