
Big Fin Bay Slot
Free demo, RTP, volatility and max win
8.2Value score · Very good · how it works
Big Fin Bay is a high volatility slot by Thunderkick. Its listed RTP is 96.14%. The published max win is 15,040× the bet.
- #451by value of 3,708 slots
- #15by value of 103 Thunderkick slots
- #1828by RTP of 3,708 slots
Play Big Fin Bay free: demo, no sign-up

Free play money from Thunderkick's official demo. 18+. No deposit and no account; a demo does not predict real results.
Basic information
| Software | Thunderkick |
|---|---|
| Release year | Not published |
| RTP | 96.14% |
| Volatility | High |
| Max win | x15,040 |
| Hit frequency | Not published |
| Game type | Slot |
| Data verified | 2026-09-28 |
Source: Thunderkick game page; RTP database by toolsgambling.com (CC BY 4.0); image: Thunderkick promotional image from the official game page. How we collect data · Report a mistake
Big Fin Bay RTP and data analysis
Big Fin Bay slot by Thunderkick: RTP 96.14%, high volatility, max win 15,040×. Free demo with no sign-up, every RTP version and what a session costs.
RTP in context
The headline RTP of 96.14% is level with the median of 96.14% across the 3,708 slots in our catalogue, and higher than 50% of them. Among Thunderkick slots it ranks 32 of 103, where the average is 95.57%.
What a session costs on average
RTP is a long-run average. Over a very large number of spins, every $1,000 wagered on Big Fin Bay returns about $961 and keeps about $39.
Put in session terms: 100 spins at $1 is $100 wagered, which costs about $3.86 on average. A real session can end far from that average, in either direction, especially on a high volatility slot.
How it is likely to feel
Thunderkick publishes Big Fin Bay as high volatility: wins come less often but can be much larger.
No hit frequency is published for this game, so we do not show one. Volatility is the studio’s own label and there is no common scale between studios.
Max win
The published max win is 15,040× the bet: $3,008 on a $0.20 bet, $15,040 on a $1 bet, $75,200 on a $5 bet. It is a ceiling set by the game maths and is reached rarely or never in normal play, so it should not set your budget.
That is higher than 81% of the 1,256 slots with a published max win; the median is 5,250×.
Slots like Big Fin Bay
Big Fin Bay RTP
The data lists one RTP for Big Fin Bay. Versions are not tracked for Thunderkick games, so other versions may exist; check the game's info screen.
- 96.14% $38.60 lost per $1,000
Cost of 100 spins
| Bet | Wagered | Average cost at 96.14% |
|---|---|---|
| $0.20 | $20 | $0.77 |
| $1 | $100 | $3.86 |
| $5 | $500 | $19.30 |
Averages computed from the published RTP; real sessions vary widely around them. RTP calculator
Big Fin Bay max win, volatility & stats
- Value score
- 8.2 / 10
- Lost per $1,000 (average)
- $38.60
- Max win at $1 bet
- $15,040
- Wins on average
- –
Percentiles compare this game with the 3,708 games in the catalogue. Max win: 15,040×.










