Thunderkick

12 Bolts of Thunder

RARE Slots Video Slots Mythology Viking Thunderstorm

Mjölnir-centered Norse mythology with a familiar scatter-prize format

Only 0.01% of slots combine 9 Pots (9 Masks) Of Gold Mechanics and Expanding Wilds.

SlotRanker Score

/ 99

05099

The SlotRanker Score is calculated from the visible data below. It is not affected by affiliate deals or paid placement.

How this score is built

RTP

96.15%

return to player

Volatility

High volatility

variance

Max win

30,000×

top multiplier

Min bet

$0.10

per spin

Reels

20 lines

Player rating

3.6 ★

10 votes

DEMO Play free, no signup

Thunderkick

Embed on your site

3.6 / 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 96.15% → 9.0/10

Volatility9/10

high → 9.0/10

Win Potential9/10

x30000.00 (30000×) → 9.0/10

Features10/10

17 features → 10.0/10

Game Mechanics6.3/10

f=17 r=5 p=20 → 6.3/10

Context signals (tie-breakers)

Layout6/10

5x3 → 6.0/10

Bet Flexibility4/10

0.1–5 (×50) → 4.0/10

Provider Reputation7/10

provider avg 7.0 → 7.0/10

Popularity7.5/10

synthetic proxy → 7.5/10

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: 82 — 12 Bolts of Thunder by Thunderkick

https://slotranker.com/thunderkick/12-bolts-of-thunder#score

How to cite

Slot Summary

Thunderkick shifts the Norse focus from Thor as a character to Mjölnir, using the hammer as the defining link between Viking mythology and familiar slot-machine imagery. The design also revisits the scatter-collection and instant-prize style associated by sources with 9 Masks of Fire. That choice places 12 Bolts of Thunder in an established bonus genre while giving the studio room for its own twist on the concept.

Spec sheet

12 Bolts of Thunder at a glance.

Identity

Slot name12 Bolts of Thunder

StudioThunderkick

Released1/18/2024

Math

SlotRanker Score82

RTP96.15%

VolatilityHigh volatility

Max win30,000×

Bet range$0.10 – $5.00

Player rating3.6 / 5 · 10 votes

Format

Reels5

Paylines20

Layout5x3

Expected average based on this slot's 96.15% RTP — individual sessions vary with volatility.

Bet per spin

Spins per hour400

Session length (hours)

Cost per hour$1.54

Cost per session$1.54

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 12 Bolts of Thunder? 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 (96.15%), with wins capped at its top multiplier (30,000×).

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.

Compare 12 Bolts of Thunder with other games

	12 Bolts of Thunder Score 82This game	Thunderstruck II Score 76	Fire Lightning Score 76	Thor X Score 74	Into the Storm Score 74
Identity
Studio	Thunderkick	Games Global	BGaming	Tada Gaming	Light & Wonder
Released	1/18/2024	5/5/2010	7/16/2018	5/11/2022	4/12/2022
Math
RTP	96.15%	96.65%	97.61%	97%	94%
Volatility	High volatility	Medium volatility	Medium/High	Low/Medium	High volatility
Max win	30,000×	8,000×	1,000×	500×	10,500×
Format
Reels	5	5	5	5	5
Layout	5x3	5x3	5x3	5x3	5x3
Paylines	20	243	20	15	20
Min bet	0.10	0.30	0.01	0.00	0.20
Max bet	5.00	5.00	20.00	0.00	20.00
Features
Progressive	—	—	—	—	—
Wild symbol	✓	✓	✓	✓	✓
Free spins	✓	✓	✓	✓	✓
Scatter symbol	✓	✓	✓	—	✓
Multiplier	—	✓	—	—	✓
Bonus game	✓	✓	—	✓	—
Respins	✓	—	—	—	✓

Every number is shown as a delta against 12 Bolts of Thunder.

Comparing against

12 Bolts of Thunder

Thunderkick

RTP

96.15%

Max win

30,000×

Score

+ Multiplier− Respins

− Bonus Game− Respins

+ Multiplier− Bonus Game

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