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Big Tuna Bonanza

Big Tuna Bonanza

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By pressing play, you agree that you are above legal age in your jurisdiction and that your jurisdiction allows online gambling.

Game information

Reels & Rows
5 x 4
Paylines
10
RTP
97.20%
Hit Frequency
31.25%
Max Win
5000x
Volatility
Medium (2)
Min / Max Bet
0.10 / 50
Release Date
07/08/2025

Slot review: Big Tuna Bonanza

Big Tuna Bonanza by BGaming casts a fishing line deeper than its predecessors, think more vibrant visuals, bigger rewards, and notably higher RTP than most entries in the genre. It’s like Big Bass Bonanza on steroids, still playful and accessible for fans of casual slot fishing themes, but with improved odds.

Slot overview: Big Tuna Bonanza

big tuna bonanza slot

Big Tuna Bonanza features a 5×4 layout with 10 fixed paylines and holds a commendable RTP of 97.20%, which is visibly above average for themed slots in this category. Betting is medium volatility and suitably balanced between chill sessions and bonus anticipation. Although the maximum win is capped at 5,000x your stake, this setup provides a fair combination of regular payouts and chance-based excitement, all wrapped in a colorful marine aesthetic with cheerful fisherman visuals.

Slot features: Big Tuna Bonanza

big tuna bonanza bonus
  • Fish Collection & Friendly Fisherman Wild: Fish symbols come with values and must land in clusters to score. During free spins, a fisherman wild appears and scoops up all visible Fish values, just like in Big Bass Bonanza, only with brighter visuals and a more rewarding payout structure.
  • Free Spins & Multipliers: Trigger bonus rounds to be rewarded with free spins. Collecting four Wilds during these rounds grants a +10 spin retrigger, and each retrigger boosts the multiplier from x2 up to x10, upping the ante significantly.
  • Bonus Buy / Ante Bets: For those who don’t want to wait, the slot includes a Bonus Buy or Bonus Bet option to trigger the bonus directly, feeding through for a price, but satisfying for high-chance players who want action now.

Our verdict: Big Tuna Bonanza

Big Tuna Bonanza is a worthy upgrade to the formula that made Big Bass Bonanza popular. With an impressive 97.20% RTP, it’s more forgiving than many fishing-themed slots and offers more frequent payouts. Its free spin mechanics mean there’s genuine potential for high rewards with each retriggered round. However, it still leans on familiar mechanics and, despite better odds, it is just basic Big Bass Bonanza.

If you're a fan of light-hearted, ocean-themed slots with friendly visuals and decent return potential and prefer better payout chances, Big Tuna Bonanza is a refreshing catch. But if you're chasing novelty or high volatility thrills, this one stays more on solid ground.

Our rating 6/10

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