Konami

Volcanic Rock Fire Twin Fever

Slots Video Slots Fantasy Action & Adventure Magic Nature Flowers Fire Music Dragon

Volcanic fantasy slot with random Wild transformations

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%

return to player

Volatility

High volatility

variance

Max win

—

top multiplier

Min bet

$0.45

per spin

Reels

30 lines

Player rating

3.5 ★

10 votes

DEMO Play free, no signup

Konami

Embed on your site

3.5 / 5

10 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% → 9.0/10

Volatility9/10

high → 9.0/10

Win Potential—

no data

Features8.5/10

11 features → 8.5/10

Game Mechanics5.7/10

f=11 r=5 p=30 → 5.7/10

Context signals (tie-breakers)

Layout6/10

5x3 → 6.0/10

Bet Flexibility6/10

0.45–450 (×1000) → 6.0/10

Provider Reputation6.3/10

provider avg 6.3 → 6.3/10

Popularity3.3/10

synthetic proxy → 3.3/10

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 — Volcanic Rock Fire Twin Fever by Konami

https://slotranker.com/konami/volcanic-rock-fire-twin-fever#score

How to cite

Slot Summary

A volcanic fire spirit governs the main interruption in Volcanic Rock Fire Twin Fever, changing random reel positions into Wilds before or after a spin. Konami places that event inside a 5x3, 30-payline format with 96% RTP and high volatility. The same transformation appears more often during Free Spins, connecting the Fire and Dragon theme directly to the game's strongest mechanic.

How It Plays

The base game uses 5 reels, 3 rows, and 30 active paylines. Wild symbols substitute within line combinations, while the Scatter Symbol controls bonus entry.

A special fire event may interrupt either side of a normal spin. One or two volcanic effects can appear, changing selected reel positions into Wilds before evaluation.

Theme & Atmosphere

Dragon, Fire, Fantasy, and Nature meet in a volcanic landscape where magical transformation is the main event rather than a decorative label.

Flowers and Music soften the otherwise forceful Action and Adventure presentation, giving the reel symbols a broader fantasy setting around the volcanic subject.

Fantasy Action & Adventure Magic Nature Flowers Fire Music Dragon

Features & Win Potential

The random Wild event can affect a varying number of positions and may occur before or after the reels move. Its timing changes which symbols receive substitution value.

Stacked Symbols occupy larger reel areas and can connect across the 30 paylines. Their usefulness increases when the fire event changes additional positions into Wilds.

High volatility Free Spins Scatter Symbol Wild Symbol Medium volatility 5 Reels Bonus Game Stacked Symbols Low volatility 96% RTP 30 Paylines

Bonus & Free Spins

The Scatter Symbol awards 8, 12, or 20 Free Spins when 3, 4, or 5 appear. During the round, the volcanic Wild event occurs more frequently and Free Spins can retrigger.

Spec sheet

Volcanic Rock Fire Twin Fever at a glance.

Identity

Slot nameVolcanic Rock Fire Twin Fever

StudioKonami

Released7/13/2021

Math

SlotRanker Score71

RTP96%

VolatilityHigh volatility

Max win—

Bet range$0.45 – $450.00

Player rating3.5 / 5 · 10 votes

Format

Reels5

Paylines30

Layout5x3

Features

Themes

Expected average based on this slot's 96% RTP — individual sessions vary with volatility.

Bet per spin

Spins per hour400

Session length (hours)

Cost per hour$7.20

Cost per session$7.20

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 Volcanic Rock Fire Twin Fever? 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: 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 (High). The model is calibrated so the average return equals this slot's published RTP (96.00%), 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 Volcanic Rock Fire Twin Fever

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Compare Volcanic Rock Fire Twin Fever with other games

	Volcanic Rock Fire Twin Fever Score 71This game	Xing Guardian Score 72	Mistress of Fortune Score 56	Wild Flower Score 84	Jungle Queen Score 80
Identity
Studio	Konami	NextGen	Blueprint Gaming	Big Time Gaming	BGaming
Released	7/13/2021	3/22/2017	6/3/2017	4/22/2021	2/20/2025
Math
RTP	96%	97.01%	94.95%	96.52%	96.15%
Volatility	High volatility	Medium volatility	Medium volatility	High volatility	High volatility
Max win	—	—	—	114,100×	10,000×
Format
Reels	5	5	5	6	5
Layout	5x3	5x4	5x3	6x4	5x3
Paylines	30	1024	40	4096	20
Min bet	0.45	0.01	0.4	0.2	0.25
Max bet	450	3	400	10	25
Features
Progressive	—	—	—	—	—
Wild symbol	✓	✓	✓	✓	✓
Free spins	✓	✓	✓	✓	✓
Scatter symbol	✓	✓	✓	✓	✓
Multiplier	—	—	—	✓	✓
Bonus game	✓	✓	✓	—	✓
Respins	—	—	—	—	—

Every number is shown as a delta against Volcanic Rock Fire Twin Fever.

Comparing against

Volcanic Rock Fire Twin Fever

Konami

RTP

96%

Max win

—

Score

+ Multiplier− Bonus Game

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