Valkyrie

Castle of Ymir

Norse fantasy slot focused on Ymir's frozen fortress

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

98%

return to player

Volatility

—

variance

Max win

10,000×

top multiplier

Min bet

$0.50

per spin

Reels

21 lines

Player rating

3.7 ★

18 votes

DEMO Play free, no signup

Valkyrie

Embed on your site

3.7 / 5

18 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 & RTP10/10

RTP 98% → 10.0/10

Volatility8/10imputed

imputed medium (unknown) → 8.0/10

Win Potential8/10

x10000.00 (10000×) → 8.0/10

Features8/10

11 features → 8.0/10

Game Mechanics5.9/10

f=11 r=6 p=21 → 5.9/10

Context signals (tie-breakers)

Layout5/10

6x6 → 5.0/10

Bet Flexibility6/10

0.5–500 (×1000) → 6.0/10

Provider Reputation7.6/10

provider avg 7.6 → 7.6/10

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: 72 — Castle of Ymir by Valkyrie

https://slotranker.com/valkyrie/castle-of-ymir#score

How to cite

Slot Summary

A five-reel grid that combines 21 paylines with expanding symbols, sticky wilds, mystery symbols, and free-spin multipliers gives Castle of Ymir several ways to change its Fantasy format. Valkyrie centers the theme on Ymir, the primordial giant of Norse Mythology, rather than treating the castle as generic medieval scenery. Its 98% RTP and 10,000x maximum establish an unusually wide statistical span around those feature changes.

How It Plays

Regular wins are evaluated across 21 paylines on a 5-reel format. Expanding Symbols can increase their reel coverage, while Mystery Symbols conceal their final identity until resolved.

Wild behavior supplies the principal changes between spins. Random Wilds can add substitutes, and Sticky Wilds remain in place long enough to influence later outcomes.

Theme & Atmosphere

Mythology supplies the central figure: Ymir is the primordial giant from Norse tradition, and the castle setting shifts that subject toward an imposing frozen stronghold.

Fantasy gives the fortress room for secret bonuses and supernatural symbol changes, while the Norse subject keeps the setting tied to a specific mythic figure.

Fantasy Mythology

Features & Win Potential

Expanding Symbols can occupy more of a reel, while Sticky Wilds preserve their positions across qualifying play. Random Wilds provide another route to additional substitutes.

Mystery Symbols delay their final value until resolution, and Multipliers can increase awarded results. The maximum outcome is capped at 10,000x the stake.

Free Spins Multiplier Scatter Symbol Wild Symbol Sticky Wilds Additional Free Spins Expanding Symbols Bonus Bet Free Spins Multiplier Random Wilds / Additional Wilds Mystery symbol

Bonus & Free Spins

Free Spins combine with a Free Spins Multiplier and can award Additional Free Spins. The Bonus Bet offers an alternate stake option connected to feature access.

Spec sheet

Castle of Ymir at a glance.

Identity

Slot nameCastle of Ymir

StudioValkyrie

Released

Math

SlotRanker Score72

RTP98%

Max win10,000×

Bet range$0.50 – $500.00

Player rating3.7 / 5 · 18 votes

Format

Reels6

Paylines21

Layout6x6

Features

Themes

Expected average based on this slot's 98% RTP — individual sessions vary with volatility.

Bet per spin

Spins per hour400

Session length (hours)

Cost per hour$4.00

Cost per session$4.00

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 Castle of Ymir? 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 (98.00%), 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 Castle of Ymir

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Compare Castle of Ymir with other games

	Castle of Ymir Score 72This game	Serpentina Score 91	Pond of Plinko Score 91	Medusa Megaways Score 87	Andvari The Magic Ring Score 87
Identity
Studio	Valkyrie	Massive Studios	Print Studios	NextGen	Foxium
Released	—	3/20/2025	12/10/2024	4/24/2018	7/14/2023
Math
RTP	98%	96.53%	96.1%	97.63%	96.05%
Volatility	—	High volatility	High volatility	High volatility	High volatility
Max win	10,000×	30,000×	30,000×	50,000×	13,500×
Format
Reels	6	7	5	6	5
Layout	6x6	7x7	5x3	6x7	5x3
Paylines	21	—	20	117649	1024
Min bet	0.5	0.1	0.1	0.25	0.2
Max bet	500	100	30	63	20
Features
Progressive	—	—	—	—	—
Wild symbol	✓	✓	—	✓	✓
Free spins	✓	✓	—	✓	✓
Scatter symbol	✓	✓	✓	✓	✓
Multiplier	✓	✓	✓	✓	✓
Bonus game	—	—	✓	✓	✓
Respins	—	—	—	—	✓

Every number is shown as a delta against Castle of Ymir.

Comparing against

Castle of Ymir

Valkyrie

RTP

98%

Max win

10,000×

Score

+ Bonus Game− Wild− Free Spins

Andvari The Magic Ring

+ Bonus Game+ Respins

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