Big Fin Bay Thunderkick

Big Fin Bay Thunderkick


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#AD, Min deposit £10, wagering 60x for refund bonus, max bet £5 with bonus funds, max refund bonus of £111. Free Spins bonus has x40 wagering. 23 free spins on registration (max withdrawal is £100). 77 extra spins on 1st deposit. No max cash out on deposit offers. Welcome bonus excluded for players depositing with Ecopayz, Skrill or Neteller. Eligibility is restricted to suspected bonus abuse. Bonus terms apply


* Welcome Offer New Players Only

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Big Fin Bay by Thunderkick

Big Fin Bay is an exciting online slot game developed by the Swedish game developer Thunderkick. This fishing-themed slot offers players a gaming experience that combines high volatility and a 15,000x max win potential. Big Fin Bay is set on a backdrop of old Mediterranean styled fishing villages. So, carry on reading our Big Fin Bay slot review to find out more.

Big Fin Bay UK Casinos

100% up to £111 + 23 Free Spins on Book of Dead


* New Players Only

#AD. New customers only. Min deposit £10, wagering 60x for refund bonus, max bet £5 with bonus funds. Free Spins bonus has x40 wagering. 23 free spins on registration (max withdrawal is £100). 77 extra spins on 1st deposit. No max cash out on deposit offers. Welcome bonus excluded for players depositing with Ecopayz, Skrill or Neteller. Eligibility is restricted to suspected bonus abuse. Bonus terms apply

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* New Players Only

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*Terms & Conditions Apply

#AD New customers only. Maximum bonus is 100% up to £100. Min. deposit is £10, no max cash out. Wagering is 40x bonus and maximum bet with an active bonus is £5. Eligibility is restricted for suspected abuse. Skrill & Neteller deposits excluded for welcome bonus.

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*Terms & Conditions Apply

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Cashback Terms & Conditions Apply

Read Information on the terms for the cashback here Cashback Terms & Conditions.

Big Fin Bay Slot Stats

Big Fin BayStats
Number of Reels and Rows6×5
Pay Lines5,040 (up to 117,649 in the bonus feature)
Minimum Total Bet£0.10
Maximum Bet£100.00
Max Win15,040x
Bonus FeaturesExpanding Wilds, Mystery Wild Feature
Feature Buy OptionNo

Big Fin Bay operates on a 6×5 grid, offering an initial 5,040 ways to win. This can expand up to 117,649 ways, during the bonus round. Betting stakes range from £0.10 – £100 and there is an RTP of 96.14%.. Due to the high volatility of this slot, you might need patience waiting for wins to land. But as is common with high volatility slots, when the wins land, they tend to be big.

How to Play Big Fin Bay

Thunderkick does a good job of making this slot accessible, both on desktop and mobile devices.

  1. Choose Your Bet: First off choose a betting stake from £0.10 – £100.
  2. Spin the Reels: Once you’ve set your bet, click on the spin button to set the reels in motion.
  3. Autoplay Option: For a hands-free experience, Big Fin Bay offers an autoplay feature. Simply select the number of spins you’d like to play and your stake.

While spinning the reels, your objective is to land winning combinations. This can be achieved by landing matching adjacent symbols on pay lines starting from the leftmost reel.

Winning Combinations & Payouts

Big Fin Bay Paytable

Like in most fishing-themed slots, Big Fin Bay features a collection of fishing themed symbols and regular slot symbols. Firstly, there are 6 low paying card symbols (9, 10, J, Q, K and A). Secondly, there are 5 high paying symbols (four different coloured fish and a Fisherman). In order to generate wins, you need to match at least 3 adjacent symbols from left to right, on a pay line. The highest payout per symbol is a 6-of-a-kind.

Low paying symbol payouts range from 0.3x – 1x. High paying symbol payouts range from 0.8x – 7x. Fishermen symbols are the top paying symbol in the game. Therefore, like Fishin Frenzy and Big Bass Bonanza, you only need 2 matching top symbols for a payout.

Mystery Wild Feature

During the base game the Mystery Wild feature can randomly trigger. When this happens, up to three expanding wild reels can occur.

Big Fin Bay Special Symbols

In addition to regular game symbols, there are also 2 special symbols: Wilds and Scatter symbols.

Golden Marlin Wild Symbol

Golden Marlin Wild Symbol

Wild symbols substitute for all other symbols in the game, except for scatter symbols. Therefore, they can help to form a winning combination. When a Wild symbol is completes a win it will also expand to the full length of the reel.

Anchor Scatter Symbol

Anchor Scatter Symbol

Anchor bonus symbol are the game’s scatter symbols. Landing at least 3 scatters will take you to the bonus round. Each scatter that lands can award up to 6 free spins. So potentially, you can start with a max total of 36 free spins.

Big Fin Bay Bonus Game

The bonus game in Big Fin Bay is where the real adventure begins. To initiate the bonus round, you need to land a minimum of three anchor scatter symbols. Each scatter reel can award up to 6 free spins. This means that if you’re fortunate enough to land scatter symbols on all six reels, you could embark on your bonus journey with a whopping 36 free spins.

Bonus Round Features

Big Fin Bay Wild Free Spins

The Bonus Round in Big Fin Bay is where players can experience the game’s full potential. With expanding reels, increasing pay ways, and a chance for additional free spins.

Expanding Wilds: Every wild symbol that lands on the reels will expand to cover the entire reel. Moreover, each time a wild symbol expands, it triggers a re-spin. Moreover, it expands the number of symbols per reel by one. Thus, increasing the number of pay ways. The max amount of symbols per reel is 7. When your reels expand, your chances of landing more wins increases.

Increasing Ways: The real allure of the bonus round lies in its potential to increase the pay ways. The maximum potential during the bonus round is to play with up to 117,649 ways.

More Free Spins: When a reel fully expands to 7 symbols, then 3 extra spins are awarded. Therefore, if you manage to max out all 6 reels with 117,649 pay lines, then you could land some big wins.

Big Fin Bay FAQs

🐟 Where can I play Big Fin Bay?

Big Fin Bay is available at any online casino that offers Thunderkick games. Simply choose one of our recommended casino sites, and you’ll be ready to embark on a fishing adventure in no time.

🐟 What is the RTP of Big Fin Bay?

The Return to Player (RTP) of Big Fin Bay is 96.14%. This is around the industry average, ensuring that players have a fair chance of reeling in some impressive wins.

🐟 How does Big Fin Bay compare to other fishing-themed slots?

Big Fin Bay offers a unique blend of dynamic reels and expansive pay ways, with a max win of 15,040x. The big win potential is better than most fishing slots, but this game lacks the fisherman collection feature which is common with traditional fishing slots.

🐟 How do the dynamic reels in Big Fin Bay work?

Big Fin Bay features dynamic reels can expand during the free spins round. When fully expanded, the game offers up to 117,649 ways to win, providing players with increased chances of landing significant payouts.


Big Fin Bay, is a fairly simple slot game with not too many bonus features. We like the dynamic reels set up, which makes this game similar to a Megaways slot. But, the main attraction is the max win of 15,040x. Unfortunately, there just isn’t much going on in this game to really attract players to it. If Thunderkick ever made a sequel to this game, we’d expect to see some sort of fish collection feature and win multipliers added into the mix. If you’re feeling lucky and want to take a crack at hitting a mega max win, then give Big Fin Bay a try.

More Game Reviews

Beyond the bays of Big Fin Bay, there is a vast sea of fishing-themed slots. Our curated collection of game reviews, dives into the depths of each game, bringing to the surface the finest details and features. Whether you’re after the thrill of a deep-sea chase or the calm of a lakeside reel, our reviews chart the course. Sail with us and uncover more aquatic gems in the vast ocean of slots.

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