Logo

Game Stats

RTP 97.20%
Volatility Medium
Max Win 5,000X
Layout 4-4-4-4-4

Betting

Min Bet €0.10
Max Bet €50.00
Pay System Winlines

Features

Free Spins
Bonus Buy
Big Tuna Bonanza background
Big Tuna Bonanza logo

You must be 18+ to play. Demo runs in your browser.

Cash CollectMultiplier5-Reels
Big Tuna Bonanza logo

Release Info

Release Date

August 7, 2025

Provider

BGaming external-link--v1

Ready to Play?

Find the best casinos offering this slot with exclusive bonuses

Find Casinos →

Top Casinos to Play BGaming

Discover the best online casinos where you can play Big Tuna Bonanza by BGaming for real money or try it for free. Our trusted casino partners offer secure gameplay, generous bonuses, and exclusive access to Big Tuna Bonanza with high RTP and great winning potential.

Rolling Slots
8.8

100% up to €500 + 100 Free Spins

LTC Casino
8.0

No bonus available

AllStarz Casino
8.2

15 Free Spins No Deposit Bonus on the Gates of Olympus Super Scatter

ETH Casino
8.0

No bonus available

Anonymous Casino
7.9

No bonus available

Big Tuna Bonanza Slot Review (BGaming) and Free Demo - Max win 5,000x

Review Grade:
(6.1/10)
Reviewed on August 5, 2025

Big Tuna Bonanza: Base Game

Big Tuna Bonanza by BGaming is a fishing-themed online slot that combines light-hearted visuals with rewarding bonus features. Set on a 5x4 grid with 10 paylines, this game offers a maximum win of 5,000x and an impressive RTP of 97.20%. Whether you’re here for the big catch bonus features or just the relaxing sea vibes, this slot keeps the rewards swimming your way.

Big Tuna Bonanza - Image 1

The Big Tuna Bonanza slot game plays out on 5 reels, 4 rows, and 10 fixed paylines, with a medium volatility level that balances frequent payouts with decent win potential. Betting limits range from €0.10 to €50, making it suitable for casual players and high rollers alike.

The reels are filled with vibrant fishing-themed symbols, including an amicable fisherman Wild, fishing gear, colorful clams, and the all-important Fish symbols. Each Fish symbol comes with a cash value, and in the base game, you’ll need at least 3 Fish on a winning line to claim those prizes.

Big Tuna Bonanza: Slot Features

Bonus Symbol

Appearing on any reel in the base game, 3 or more Bonus symbols trigger the Free Spins round.

  1. 3 Bonus symbols = 10 Free Spins
  2. 4 Bonus symbols = 15 Free Spins
  3. 5 Bonus symbols = 20 Free Spins

Fish Symbol

Each Fish symbol shows a random prize amount. In the Free Spins round, the Wild collects these values for you.

Wild Symbol

The Wild substitutes for all symbols except Bonus and Fish symbols during Free Spins. Every 4 Wilds collected = 10 extra spins + progressive multipliers (x2, x3, x10).

Free Spins with Progressive Multipliers

During Free Spins, Wilds collect Fish values and increase the multiplier stage. With enough Wilds, you can hit x10 multipliers on all wins.

Big Tuna Bonanza - Image 2

Chance x2 Feature

For a small bet increase, you can double your chance of hitting Free Spins. Activating this disables the Buy Bonus option.

Buy Bonus

Jump straight into Free Spins for 100x your bet. This option is disabled if Chance x2 is active.

Conclusion

Big Tuna Bonanza is a relaxing yet rewarding online slot that blends the charm of fishing with exciting bonus mechanics. Its high RTP, progressive multipliers, and buy bonus option make it appealing for both casual slot fans and experienced players seeking a strategic edge. Whether you aim for a steady catch or the jackpot-level big fish, this game delivers plenty of thrills.

Fun Fact

BGaming is known for their player-friendly high RTP slots, and Big Tuna Bonanza joins their portfolio with one of the highest RTP rates in the fishing slot genre.

Pros and Cons

Pros:

  1. 97.20% RTP – above industry average
  2. Progressive multipliers up to x10 in Free Spins
  3. Chance x2 feature for better bonus hit rate
  4. Buy Bonus option for instant action
  5. Fun and engaging fishing theme

Cons:

  1. Medium volatility may not appeal to extreme high-risk players
  2. Buy Bonus disabled when Chance x2 is active

FAQ

Can I play Big Tuna Bonanza for free?

Yes! You can try the Big Tuna Bonanza demo for free on Spinaspin before wagering real money.

What is the RTP of Big Tuna Bonanza?

The game has a 97.20% RTP, which is higher than most online slots.

What’s the maximum win in Big Tuna Bonanza?

The max win potential is 5,000x your stake.

Does Big Tuna Bonanza have a Buy Bonus option?

Yes, you can buy the Free Spins round for 100x your bet, unless Chance x2 is active.

What makes Big Tuna Bonanza different from other fishing slots?

It offers progressive multipliers up to x10 and an above-average RTP, setting it apart from other fishing-themed slots.

Frequently Asked Questions

Everything you need to know about this slot

No FAQs available for this slot yet

Check back later for common questions and answers

Pros & Cons

Our honest assessment of this slot game

Pros

No pros listed yet

Cons

No cons listed yet

Review Breakdown

Graphics
7.1/10
Big Win Potential
6.5/10
Innovation
5.1/10
Entertainment
5.9/10
Gameplay
5.8/10

More newest slots by BGaming

Explore more exciting slots developed by BGaming. Discover a variety of themes, features, and big win potentials in our curated selection of games from your favorite developers.

Golden Paw Hold & Win
7.2/10
Golden Paw Hold & Win logo

Golden Paw Hold & Win

BGaming

12/11/2025

Merge Up™ 2
7.3/10
Merge Up™ 2 logo

Merge Up™ 2

BGaming

28/10/2025

Burning Chilli 243
7.3/10
Burning Chilli 243 logo

Burning Chilli 243

BGaming

22/10/2025

 Fiesta Clusters
7.1/10
 Fiesta Clusters logo

Fiesta Clusters

BGaming

15/10/2025

 Face Off
7.0/10
 Face Off logo

Face Off

BGaming

06/10/2025

SPINASPIN

SPIN
WIN
REPEAT

Your ultimate destination for slot games, casino reviews, and expert gaming insights. Join thousands of players in their quest for the perfect spin.

Casinos

Spinaspin is an independent affiliate site created solely for informational and entertainment purposes; we want to make it perfectly clear that we do not operate, offer, or host any real-money gambling services ourselves. All of the content, including our reviews, guides, and articles, is intended strictly for adults aged 18 and over. While our team strives to conduct thorough research and provide accurate, unbiased information to help our users make responsible and informed choices, we must state clearly that we are not responsible for any financial losses, negative outcomes, or damages resulting from gambling activities or decisions made by users on any third-party websites linked from Spinaspin. We believe in safe play, and as gambling inherently involves significant risk, it should always be approached responsibly and cautiously. If you or someone you know feels that gambling is becoming a problem or negatively affecting their life, we strongly encourage you to prioritize your well-being and seek confidential help immediately from professional support organizations. Always remember to gamble within your personal financial means and ensure you are doing so purely for fun and entertainment.

Spinaspin logo
Gamble Aware Gamble Aware Gamble Aware 18-plus

© 2025 Spinaspin. All rights reserved.

18+ Only
Play Responsibly
Secure
Verified
18+
Website by: Kodzilla Kodzilla Logo