Quick answer
Shifting Seas is a Thunderkick slot (2022) with 96.15% RTP, high volatility and a 15,000x max win. It uses 117,649 ways with tumbling reels, wild symbols and expanding reels. An official free demo is available. RTP can vary by casino.
Key specs
- RTP
- 96.15%
- Volatility
- High
- Max win
- 15,000x
- Grid
- 6 reels
- Pays
- 117,649 ways
- Released
- 29 July 2022
- Jackpot
- None
Not published by the provider: bet range
Casinos with Thunderkick games
- Opalis125% up to $750 + 125 Free Spins35x bonusCarries ThunderkickPlay at Opalis (opens in new tab)
18+. New customers. Min dep $20. 35x bonus wagering. Max bet $5. 21 days. 125 spins on Sweet Bonanza at $0.20. Full T&Cs apply.
Key terms
18+. New customers only. Min deposit $20. 35x bonus wagering requirement. Max bet $5 while wagering. Free spins on Sweet Bonanza at $0.20 per spin. Offer valid 21 days. Full T&Cs apply. Please gamble responsibly.
Check Shifting Seas is in the lobby in your country.
Themes:
Free demo Members
Try Shifting Seas with play money before deciding whether to play for real. Official Thunderkick demos are free for GambGenius members.
How to play Shifting Seas (members only)
Instead of fixed lines, matching symbols on adjacent reels pay in any position, starting from the leftmost reel. The more matching symbols there are on each reel, the more ways the combination pays.
Shifting Seas is played on a 6 reels grid with 117,649 ways.
- Set your stake. Choose your total bet per spin. Wins are paid as multiples of this stake.
- Check the paytable. Open the game's info screen to see what each symbol pays and the exact rules for this version.
- Spin. Each spin's result is decided by a certified random number generator, independent of previous spins.
- Trigger the bonus. Land the required scatter symbols to start the free spins feature.
The full Shifting Seas guide: how winnings work, 4 features and 4 strategy tips
- Your stake plan: a $50 budget → about $0.17 a spin (high volatility)
- What 96.15% RTP costs per $100 wagered: $3.85 on average
- 4 features explained: tumbling reels, wild symbols, expanding reels, free spins
- Stake plans for $20 to $250 budgets
- 2 RTP versions compared: 96.15%, 94.18%
- 4 slots with the same style and a higher RTP (up to 98.12%)
- Strategy tips and a session planner for Shifting Seas
Free · no card · 18+ only
Never sold · export or delete any time · What do members get?
How winnings work (members only)
What 96.15% RTP costs per $100 wagered, the 15,000x max win at a $1 stake
The top prize is capped at 15,000x your stake. On a $1 spin that is $15,000; on $0.20 it is $3,000. When the cap is reached the round usually ends immediately.
Because winning symbols tumble away and are replaced, one paid spin can produce a chain of wins. All of them count towards that spin's total.
What 96.15% RTP means
Expected return = stake × 96.15%
Over $100 of total bets, the long-run average loss is $3.85
RTP is a long-run average across millions of spins. Any single session can finish far above or below it, especially on a high volatility game.
Features explained (members only)
4 features explained: tumbling reels, wild symbols, expanding reels, free spins
Tumbling reels
After a win, the winning symbols are removed and new ones fall into their place. This can create several consecutive wins from a single paid spin. Also called cascades or avalanches.
Wild symbols
Wilds substitute for regular paying symbols to help complete winning combinations. They do not normally replace scatter or bonus symbols.
Expanding reels
The grid grows during play, adding rows or reels and increasing the number of ways or lines that can pay.
Free spins
A bonus round of spins played at no cost to your balance, usually triggered by landing three or more scatter symbols. Wins during the round are added to your balance, and many games let you retrigger extra spins.
Strategy tips (members only)
- Size your stake to the volatility. High volatility concentrates the return in rare, large wins. Long losing runs are normal. Keep stakes small (around 1% of your session budget or less) so you can ride out the swings. A simple rule: bring at least 300 spins' worth of budget, so a $50 budget suggests a stake of about $0.17.
3 more tips and a session planner
- Check which RTP version you're playing. Thunderkick offers this game at 96.15%, 94.18%. Open the game rules at your casino and prefer sites running the 96.15% version.
- Bonus wagering: at 96.15% RTP, clearing $1,000 of wagering costs about $38.50 on average. Check the bonus terms, as some casinos exclude specific games. Run your numbers in the wagering calculator.
- Set limits before you spin. Decide your loss limit and session time in advance and stop when you reach either. No pattern or betting system changes the outcome of a spin.
More on this in slot RTP and volatility explained and bankroll management.
Does it fit your budget? (members only)
Stake plans for $20 to $250 budgets
For high volatility we suggest a budget of at least 300 spins. This is what that means for Shifting Seas.
| Budget | Stake a spin | Bet range | Average cost of 300 spins |
|---|---|---|---|
| $20 | $0.07 | Bet range not published | $0.77 |
| $50 | $0.17 | Bet range not published | $1.92 |
| $100 | $0.33 | Bet range not published | $3.85 |
| $250 | $0.83 | Bet range not published | $9.62 |
Averages only: a short session can end far above or below them. Set a loss limit before you play.
RTP versions (members only)
2 RTP versions compared: 96.15%, 94.18%
Thunderkick supplies Shifting Seas in 2 RTP versions and each casino chooses which one to run. Over $1,000 of bets, the 94.18% version costs about $19.70 more on average than the 96.15% version.
| Version | Average cost per $100 wagered | Extra vs best |
|---|---|---|
| 96.15% (best) | $3.85 | — |
| 94.18% | $5.82 | +$1.97 |
Open the game's rules or info screen at your casino to see which version it runs.
Seen a different version at a casino? How member RTP reports work
Same style, better RTP (members only)
4 slots with the same style and a higher RTP (up to 98.12%)
Slots with the same mechanic (ways to win) and volatility (high) as Shifting Seas, with a higher published RTP. Casinos can still run lower versions of any of them.
Questions
Frequently asked questions
Who makes Shifting Seas?
Shifting Seas is developed by Thunderkick and was released in 2022.
What is the RTP of Shifting Seas?
The default RTP of Shifting Seas is 96.15%. Thunderkick also supplies versions at 94.18%, so check the game's info screen at your casino.
Is Shifting Seas high volatility?
Shifting Seas is rated high volatility. High volatility concentrates the return in rare, large wins.
What is the max win on Shifting Seas?
The maximum win on Shifting Seas is 15,000x your stake, which is $15,000 on a $1 spin.
Can I play Shifting Seas for free?
Yes. GambGenius members can play the official Thunderkick demo of Shifting Seas free on this page. It uses play money only, so demo wins can't be withdrawn, and it is for players aged 18 and over.
Does Shifting Seas have a bonus buy?
No bonus buy is listed for Shifting Seas in the sources we checked.
Where can I play Shifting Seas?
Opalis carries Thunderkick games. Check Shifting Seas is in the lobby in your country before you sign up. 18+ · New customers · T&Cs apply. Availability varies by country.
Where this data comes from
- thunderkick.com Provider
- slotcatalog.com Slot database
Specs come from the provider's own site and 1 independent slot database. Casinos can run lower-RTP versions, so always check the game rules before you play.
Game artwork © Thunderkick, shown to identify the game.

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