Big Tuna Bonanza (BGaming)

Big Tuna Bonanza Review

BGaming’s Big Tuna Bonanza casts a fresh line into the fishing slot genre with vibrant visuals and a rewarding bonus structure. The game’s core mechanic revolves around Fish symbols with random cash values and a Fisherman Wild that collects them during Free Spins. As you collect Wilds, you unlock additional spins and increasing multipliers—up to x10. The Bonus Buy and Chance x2 options let players tailor their experience, while the 97.2% RTP ensures strong return potential. With a max win of 5,000x, it’s a relaxing yet exciting slot that’s perfect for casual and strategic players alike.

Pros and Cons

Themes and Gameplay

Big Tuna Bonanza is designed with themes like Fish, Fishing, Underwater, Water, in mind. The layout of this game is pretty standard and consists of 5 reels with 10 possible paylines. In most jurisdictions you can also select the Autoplay option when playing Big Tuna Bonanza. You can choose from 10, 25, 50, 100 or even more spins. You can opt to stop Autoplay on a win, if a single win exceeds a certain amount, or if your balance increases or decreases by a chosen amount. This is a great way to stay in control and to play more responsibly.

Maximum Win, RTP and Volatility

Here you have the potential to win 5000 times your total bet. This can give you very big wins if you manage to hit some high paying symbols. This value is calculated on a very large number of spins, often a billion spins.

The standard RTP for Big Tuna Bonanza is 97.2% (Can be lower on some sites). This is very good and higher than average for an online slot. RTP stands for Return to Player and is the percentage of stakes the game returns to the players. For example, if a player bets €10 the expected return for this game would then be €9.719999. However, the RTP value is calculated over millions of spins which means the outcome of every spin will be totally random.

Game Features

Who doesn't like plenty of action and great features in a slot! Some of the most popular features available in Big Tuna Bonanza is Bonus Bet, Bonus Multiplier, Buy Feature, Cash Prize, Collect Symbols, Increasing Multiplier, Level Up, Retrigger, Wilds, It also has a bonus game, the most liked free spins bonus rounds and if you are lucky this is usually where you can win the big bucks.

Verdict: Familiar Formula, Refined Execution

While Big Tuna Bonanza doesn’t reinvent the fishing slot genre, it perfects the formula with clean visuals, intuitive mechanics, and solid win potential. The Bonus Buy and Chance x2 features add flexibility, making it a well-rounded release.

Reviewed 8/7/2025 by CasinoSlotsGuru.com