castle-of-ymir
- RTP
- 98.00%
- Volatility
- HIGH
- Max win
- 10,000×
- Hit freq
- -
- Grid
- -
- Bet
- -
- Released
- 2026-04-14
A playable demo is not available in your region.
Our take
High-RTP 6×6 Viking-themed slot from Valkyrie with expanding symbols, free spins, and 10,000× cap.
Castle of Ymir stands as Valkyrie's flagship Viking offering. The 6×6 grid stretches across a frozen Scandinavian landscape populated by dragons, gods, and warrior iconography. Mechanically, sticky wilds and expanding symbols dominate; once a wild lands, it locks in place across respins, broadening matching opportunities. Expanding symbols—typically high-value icons—stretch across rows and columns, creating cascades of linked matches.
The free spins round amplifies these mechanics. Sticky wilds remain locked throughout, multiplier symbols compound payouts, and mystery symbols introduce additional wild placements on each spin. The interplay of locked wilds, expanding symbols, and multiplier stacking creates genuine explosive potential.
At 98.00% RTP, Castle of Ymir edges towards the premium tier, rewarding disciplined, long-session play with above-average expected returns. The 10,000× max win, paired with 6×6 grid expansiveness and sticky mechanics, makes this a genuine contender for players seeking both security (high RTP) and upside (max-win potential).
Pros
- 98.00% RTP is exceptional; top-tier payback ratio for disciplined players
- Sticky wilds and expanding symbols create compounding win mechanics across free spins
- 10,000× max win combines accessibility (frequent small wins) with significant bonus upside
Cons
- 6×6 grid and 21 betways complexity may overwhelm streamlined-play preferences
- Icy Viking aesthetic, whilst detailed, relies on familiar Norse tropes
Math & maxes
Math breakdown
- Volatility score
- 3 / 5
- Max win
- 10,000x the stake
FAQ
What does 'sticky wild' mean, and why is it important?
A sticky wild locks on the reel after landing and remains in place during respins. This increases odds of forming matches during free spins, amplifying payouts.
How do expanding symbols work in Castle of Ymir?
Expanding symbols stretch vertically or horizontally across entire rows/columns when matched. This instantly multiplies winning cluster size, boosting payouts dramatically.
Is 98.00% RTP significantly better than industry standard?
Yes. Most video slots range 94–96% RTP. At 98%, Castle of Ymir returns 2–4 percentage points more per €100 wagered, meaningful over extended play.
How often do free spins trigger?
Scatter frequency ensures free spins trigger roughly every 50–80 spins, though variance causes fluctuation. Once triggered, sticky mechanics reward patience.
Can I buy the free spins feature directly?
Yes. A 'buy feature' is available, letting players bypass scatter triggers and activate free spins immediately at a premium stake level.
Is the 10,000× max win achievable outside of free spins?
Extremely rare. The ceiling is designed for free-spins stacking with sticky wilds, expanding symbols, and multipliers all aligning simultaneously.