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Big Fin Bay — slot review
Big Fin Bay is a slot by Thunderkick (released 2021) with an RTP of 96.14%, high volatility.
RTP 96.14%High volatility6 reels
Free demo
Free, virtual chips only — no sign-up
Demo mode uses a virtual balance and pays no real winnings. It is meant for getting familiar with the game.
Specifications
| Provider | Thunderkick |
| Release year | 2021 |
| RTP | 96.14% |
| Volatility | High volatility |
| Reels | 6 reels |
| Paylines | fixed paylines |
Why the RTP at a casino may differ
Providers ship the same game in several return configurations, and each casino picks which version it runs. Across the market the spread typically runs 2–8 percentage points below the headline figure. The number here is the provider specification — the version actually running is shown inside the game, in its rules screen.
Big Fin Bay review
Big Fin Bay is one of the older titles in this batch: Thunderkick released it back in 2021. It has six reels and fixed paylines, with no theme listed in the data. The RTP of 96.14% sits slightly above the catalogue median of 96.05%. Volatility is high. No maximum win figure is given, so it can't be checked against the median. Otherwise the game doesn't stand out.
Where to play Big Fin Bay
Top-rated casinos from our ranking that carry Thunderkick games in their catalog:
Welcome package up to €1000 on your first deposits + free spins (varies by region)
100% up to C$1,500 + 300 free spins (3-deposit package, Canada)
Similar Thunderkick slots
See also
This review was prepared by the Casino Atlas editorial team. Last updated: July 2026. Specs are based on provider data; the RTP version may differ at a specific casino.