Big Fin Bay Slot Review

Try and land a bumper catch of coins by taking a trip to the Big Fin Bay slot, a fishing-themed game from Thunderkick. It’s a 6 reel slot that offers 5,040 ways to win the base game. This can get as high as 117,649 ways to win when you trigger the free spins. Feature highlights include Mystery Wilds which can turn up to 3 reels totally wild. There are also expanding wilds which can fill entire reels. The main feature is a free spins round where each triggering scatter can award up to 6 free spins. Wilds that land here expand to fill the reel as well as awarding a respin. These also expand the size of that reel, increasing the ways to win. With 15,040 x stake wins possible, discover more in our deep dive Big Fin Bay review.

Where to Play Big Fin Bay Slot

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Big Fin Bay Slot Details & Wager Limits

The base game action in the Big Fin Bay slot plays out on a 6 reel, 5,040 ways to win machine. This can increase rapidly in the main feature as you’ll discover below. To create a winning combination, land 3 or more matching symbols or wilds on adjoining reels, starting from reel 1. The only exception being the grizzly fisherman. You only need 2 of him to for a winner.

You can cast off here at stake levels of between 10p to £100 per spin. The game uses Thunderkick’s simple interface where changing your stake is very simple. There’s an Autoplay function too which may not be available in your jurisdiction.

The Big Fin Bay RTP is 96.14% which is about average for player return rates. The waters here can be rough when it comes to variance. This is an extremely volatile slot. It’s possible net some massive catches though with the maximum win coming in at 15,040 x your total stake from a single spin.

Theme – head to a lovely fishing village


With a fishing theme, there’s a cartoonish feel to the design in the Big Fin Bay slot which is very impressively done. It does conjure up the same feel as Blueprint Gaming’s Fishin’ Frenzy. The visuals here are light-hearted and rather jolly. Big Fin Bay looks like the kind of place you’d want to go and visit.

The reels are set against a coastal backdrop with deep blue seas and the rather lovely looking Big Fin Bay in the background. The reels are made up of lower value A to 9 royals and a collection of 4 higher value fish symbols. The top standard symbol is the bearded fisherman who pays 1, 2, 3, 4 or 7 x your total stake if you manage to land 2, 3, 4, 5 or 6 in combination.

He does look a little like Captain Birdseye truth be told. There is also a marlin wild symbol which replaces all the symbols bar the bonus symbol.

You can take to the ocean here whether playing on a computer, tablet or mobile. The bright, colourful symbols stand out perfectly against the blue backdrop. Everything is nice and crisp, even when playing on a small screen. That’s also the case in the feature where the expanding reels mean there are more symbols in play. The Big Fin Bay mobile slot works well.

Big Fin Bay Bonus Features

In the Big Fin Bay slot, wilds are the likeliest way to net a bumper haul of coins. There are Expanding and Mystery Wilds in the base game. Trigger the Bonus Game feature for free spins. Here the wilds award respins as well as lengthening the size of the reel and boosting the number of ways to win.

Mystery Wild feature

big-fin-bay-slot-mystery wild-feature

Mystery wild symbols can randomly appear in the base game and turn up to 3 reels totally wild. This is simply known as the Mystery Wild feature and helps you form winning combinations. No scatter symbols will appear when this feature is in play.

Expanding Wilds feature

When a wild makes up part of a winning combination, the Expanding Wilds feature is activated. The wild expands to fill the whole of that reel, boosting your chances of landing an improved combination.

Bonus Game feature


To trigger the Bonus Game feature, you need to land 3 or more anchor bonus symbols anywhere on the reels on the same spin. Each triggering bonus symbols randomly awards up to 6 free spins. This means you can begin with up to 36 free spins if you’re lucky.

Each time a wild symbol lands during the feature, the wild expands to fill the whole of the reel. It also awards a respin. Wilds also lengthen the size of that reel, adding more symbols. Extra symbols mean more potential ways to win. Expanded reels remain in play for any free spins you have left.

If a reel reaches its maximum size of 7 symbols high, 3 extra free spins are awarded to your total. If all 6 reels reach 7 symbols high, play with up to 54 free spins in total. You’ll also be playing on reels that offer 117,649 ways to win.

Big Fin Bay Review Summary – volatile fishing trip

Plenty of other games challenge players to try and haul in a big catch of fish inspired coins. The Big Fin Bay slot is a good example of the genre. The design here is simple but very easy on the eye.

The expanding reels are the main innovation when it comes to gameplay. Whilst it offers up to 117,649 ways to win, Big Fin Bay doesn’t feel or play like a Megaways slot.

This game is all about wild symbols which can give you wild reels, can expand and will give you more ways to win and extra free spins in the Bonus Game feature. The key to winning big is to get plenty of wilds during the free spins which will give you 117,649 ways and lots of extra free spins.

Tread carefully though as the waters here are extremely volatile. It does offer the upside of 15,040 x stake wins on each spin. If you like the fishy theme, a trip to Big Fin Bay is one worth making.

Big Fin Bay FAQs

What is the Big Fin Bay RTP?

The Big Fin Bay return to player rate is 96.14% which puts it in the middle of the pack. The volatility is high and rated 9.38/10 by developer Thunderkick.

What is the Big Fin Bay max win?

The most you can win in Big Fin Bay is 15,040 x your total stake. Your best winning opportunities come in the free spins as you can play with up to 117,649 ways to win or pay ways.

How does the Mystery Wild feature work?

In the base game, mystery wilds can appear to trigger the Mystery Wild feature. Once triggered, up to 3 reels can become fully wild giving you bigger winning potential.

Are there any Big Fin Bay free spins?

Yes, the Bonus Game feature begins with up to 36 free spins. Land a wild here and it expands the size of the reel and increases the ways to win. With more free spins to be won, the fully expanded reels can offer 117,649 ways to win.

Big Fin Bay Slot Information

  • Game:
    Big Fin Bay
  • Provider:
  • Type:
    Video Slot
  • Reels:
  • Paylines:
  • Stakes Range:
    10p to £100
  • Bonus Features:
    Yes (3)
  • Free Spins/Multiplier:
    Up to 54/1x
  • RTP %:
  • Max Win:
    15,040 x
Review by Chris Taylor

Review by Chris Taylor

Chris is a slots expert that has reviewed and played over 4,000 online slots. Having being in the iGaming industry for over 16 years, he knows how slots work, how bonus features are triggered and how the RTP and variance affect the gameplay.

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