ELK Studios

Thoro

Norse character slot linking walking wilds, lightning symbols and respins

0.5% of the games we track list Multi Level Bonus; Thoro is one of them.

SlotRanker Score
71
/ 99
71
05099

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

RTP
94%
return to player
Volatility
Medium/High
variance
Max win
10,000×
top multiplier
Min bet
$0.20
per spin
Reels
6
178 lines
Player rating
4.0 ★
13 votes
DEMO Play free, no signup
ELK Studios
Thoro
Embed on your site
4.0 / 5
13 ratings
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Why this score

High confidence (100%)

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

Slot score profile across 5 weighted categoriesPayouts & RTP6/10RTP 94% → 6.0/10Volatility9/10high → 9.0/10Win Potential8/10x10000.00 (10000×)…Features10/1018 features →…Game Mechanics7.9/10f=18 r=6 p=178 →…
Payouts & RTP6/10
RTP 94% → 6.0/10
Volatility9/10
high → 9.0/10
Win Potential8/10
x10000.00 (10000×) → 8.0/10
Features10/10
18 features → 10.0/10
Game Mechanics7.9/10
f=18 r=6 p=178 → 7.9/10
Context signals (tie-breakers)
Layout5/10
6x4 → 5.0/10
0.2–5 (×25) → 4.0/10
provider avg 7.1 → 7.1/10
synthetic proxy → 5.0/10

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: 71 — Thoro by ELK Studios

https://slotranker.com/elk-studios/thoro#score
How to cite

Slot Summary

Released on September 24, 2024, Thoro applies a 94% RTP to ELK Studios' Norse confrontation between Thoro and Loki. Its 178-payline format supports a medium/high-volatility design in which walking wilds generate respins, lightning symbols carry scatter payouts and multipliers can be upgraded. The x10000.00 ceiling therefore sits behind interaction between characters and symbols, not a single isolated bonus trigger.
MechanicsWalking wilds create respins and persistent positions

How It Plays

Thoro uses 178 paylines, so wins are evaluated through a dense line structure rather than clusters. Lightning symbols can also pay as scatters when enough appear.

The main interruption comes from the Thoro walking wild. It moves leftward and generates respins, while qualifying Bonus and lightning symbols stay in place during that sequence.

Theme & Atmosphere

Mythology supplies the conflict: Thoro stands as Odin's heir while Loki attempts to take Asgard. Thunderstorm imagery gives that rivalry a direct mechanical role.

The Action & Adventure and Fantasy treatment favors confrontation over solemn mythology. Mjolnir, lightning and the sky setting signal when the game's strongest effects are active.

Features & Win Potential

Walking Wilds and Respins operate together, with Sticky Wilds preserving useful positions. Mjolnir can improve Thoro's Multiplier or upgrade values associated with lightning symbols.

When Thoro and Loki appear together, the spreading-wild effect removes Loki symbols and leaves wild positions behind. Bonus Buy options provide alternate access to enhanced modes.

Bonus & Free Spins

Three Bonus symbols trigger the Multi Level Bonus. Lightning and Bonus symbols remain sticky through Thoro's respins, while the walking wild continues moving toward the left.

The Bonus Buy offers several entry configurations, including a Super Bonus state with upgraded lightning values and an active Thoro Multiplier.

Spec sheet
Thoro at a glance.
Identity
Slot nameThoro
Released9/24/2024
Math
SlotRanker Score71
RTP94%
VolatilityMedium/High
Max win10,000×
Bet range$0.20 – $5.00
Player rating4.0 / 5 · 13 votes
Format
Reels6
Paylines178
Layout6x4

True Cost to Play

Expected average based on this slot's 94% RTP — individual sessions vary with volatility.

Cost per hour$4.80
Cost per session$4.80

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

Bankroll survival simulator

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

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 (94.00%), with wins capped at its top multiplier (10,000×).

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 Thoro

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Compare Thoro with other games

Thoro
Thoro
Score 71This game
7×7 Thor7×7 Thor
Score 73
Thor's HammerThor's Hammer
Score 72
Sky of ThunderSky of Thunder
Score 51
SerpentinaSerpentina
Score 91
Identity
Studio
Released9/24/20243/27/202511/15/20161/9/20173/20/2025
Math
RTP94%94%96.09%95%96.53%
VolatilityMedium/HighHigh volatilityMedium/HighLow/MediumHigh volatility
Max win10,000×———30,000×
Format
Reels66557
Layout6x46x45x45x47x7
Paylines178Pay Anywhere4040—
Min bet0.20.20.150.40.1
Max bet58015040100
Features
Progressive—————
Wild symbol✓—✓✓✓
Free spins✓✓✓✓✓
Scatter symbol✓✓✓—✓
Multiplier✓✓——✓
Bonus game—————
Respins✓————

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Questions & Answers

Thoro FAQ

3 questions

Thoro has a published RTP of 94%, with medium/high volatility and a maximum win of x10000.00.

Thoro moves left across the grid, produces respins and can interact with Mjolnir to improve multiplier or lightning-paytable values.

Three Bonus symbols appearing anywhere in view trigger the Bifrost Bonus Game, where sticky lightning symbols remain during Thoro's respins.

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