Big Bass Boom from Pragmatic Play

RTP: 96.5%

Drop the bass and spin for booming wins! Let Big Bass Boom amplify your gameplay.

Drop the bass and spin for booming wins with Pragmatic Play and Reel Kingdom’s Big Bass Boom, an exhilarating casino game that takes players on an explosive fishing adventure. Released in 2024, this vibrant online slot continues the popular Big Bass series with a focus on amplified action and thrilling bonus features. With its solid RTP, high volatility, and dynamic free spins round featuring money symbol collection, progressive multipliers, and random modifiers, Big Bass Boom promises a captivating pursuit of big wins up to 5,000x your stake, designed for both seasoned anglers and new players alike.

Provider: Pragmatic Play (Reel Kingdom)
Release Date: 2024
RTP: 96.50%
Volatility: High
Max Win: 5,000x
Theme: Fishing / Underwater / Adventure / Explosives
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For players seeking a quick overview of the technical aspects, here’s a detailed table of Big Bass Boom’s core features:

Feature Value
Reels 5
Rows 3
Paylines 10 (fixed)
Min Bet 0.10
Max Bet 250
Max Win 5,000x
Jackpot No
RTP 96.50%
Volatility High
Hit Frequency N/A

Big Bass Boom plunges players back into a clean and clear underwater environment, though with an added explosive twist that sets it apart. The online slot’s theme is an adventurous fishing trip in a vibrant aquatic world, now featuring monster trucks, dynamite, and bazookas in the tackle box, adding a layer of high-octane action. The visual style is bright, colorful, and engaging, with a detailed underwater backdrop that reveals the shoreline above, creating an immersive atmosphere for this casino game.

The graphics are clean and consistent with the Big Bass series’ charming design, bringing fishing equipment and marine life to life with dynamic flair. Animations are smooth and lively, particularly during winning combinations and the activation of bonus features, such as the fisherman reeling in prizes or modifiers like dynamite. The sound design features an upbeat soundtrack that complements the adventurous theme, enhancing the overall engaging online slot experience.

  • Regular Symbols: The low-paying symbols are classic card royals (10, J, Q, K, A). Higher-paying symbols include various fishing-related items and adventurous gear like monster trucks, fishing rods, tackle boxes, and fish. The monster truck is typically the highest-paying regular symbol.
  • Special Symbols:
    • Wild Symbol (Fisherman): The familiar fisherman character serves as the wild symbol. It substitutes for all symbols except scatter and money symbols. Critically, the Wild symbol appears only during the free spins feature, where it collects the values from Money symbols.
    • Scatter Symbol (Jumping Bass): A jumping bass fish acts as the scatter symbol. Landing three or more scatter symbols anywhere on the reels triggers the free spins feature.
    • Money Symbols (Fish): These are the fish symbols that carry random cash values, ranging from 2x up to 5,000x the total bet. These values are collected by the Fisherman Wild during the free spins round.

Playing Big Bass Boom is a straightforward experience, utilizing a classic 5-reel, 3-row layout with 10 fixed paylines. Wins are formed by landing three or more matching symbols on adjacent reels from left to right across a payline, starting from the leftmost reel. This high RTP slot ensures intuitive and exciting gameplay.

To embark on your explosive fishing expedition, set your desired bet amount using the ‘+’ and ‘-‘ buttons, with options typically ranging from a minimum of 0.10 to a maximum of 250 per spin. Once your wager is set, hit the spin button. An autoplay function and quick spin/turbo options are available for hands-free play. For practice or just for fun, Big Bass Boom can be enjoyed as a free slot machine in demo mode. This online slot is fully optimized as a mobile slot, ensuring a seamless and engaging experience across all iOS and Android devices, allowing you to chase big catches anywhere.

Big Bass Boom is packed with thrilling bonus features designed to enhance your gameplay and deliver significant payouts:

  • Free Spins: Landing 3, 4, or 5 Jumping Bass Scatter symbols awards 10, 15, or 20 free spins respectively. During this feature, the Fisherman Wild symbol collects all values from visible Fish Money symbols. Every 4th Wild collected retriggers the feature, awarding +10 additional free spins and increasing the Money symbol collection multiplier (x2 for level 2, x3 for level 3, and x10 for level 4). The feature can be retriggered up to 3 times.
  • Random Modifiers (During Free Spins): These features can randomly trigger to enhance wins: Dynamite (adds fish if wilds are present), Hook (pulls a wild into view if fish are present without a wild), or Bazooka (changes all symbols into something else when a wild is present with no fish).
  • Bonus Buy: Players can directly purchase entry into the free spins round for 100x their current bet, bypassing the base game for immediate bonus action.

For strategic casino game players, a clear understanding of these core statistics is vital for informed gameplay.

  • RTP: Big Bass Boom features an RTP (Return to Player) of 96.50% in its default setting. This figure is comfortably above the online average of 96% for online slots, indicating a favorable long-term return for players. However, it’s worth noting that some exclusive versions of Big Bass Boom (e.g., for Stake Casino) offer an enhanced RTP of 97.97% (or 98% with bonus buy), making them exceptionally high RTP slots. Always verify the specific RTP at your chosen casino.
  • Volatility: This online slot is characterized by high volatility (rated 5 out of 5). This means that while wins may be less frequent, they have the potential to be significantly larger, especially during the free spins rounds with the money symbol collection and escalating multipliers. High volatility gameplay is best suited for players with a robust bankroll and a patient approach, who are prepared for extended dry spells in pursuit of monumental payouts.

Big Bass Boom by Pragmatic Play and Reel Kingdom is an exhilarating casino game that injects explosive new energy into the beloved Big Bass series. While it shares core mechanics with its predecessors, the amplified action and random modifiers in the free spins ensure dynamic and engaging gameplay. With its solid RTP of 96.50% (and even higher in some exclusive versions) and thrilling high volatility, this high RTP slot offers substantial payout potential up to 5,000x your stake. The money symbol collection, progressive multipliers, and various random features ensure that every spin is filled with the promise of a big catch. If you’re a fan of the Big Bass genre, enjoy high-risk, high-reward gameplay, and crave engaging bonus features, Big Bass Boom is a fantastic choice that promises an unforgettable fishing adventure. Get ready to amplify your wins!

✅ Pros ❌ Cons
✅ Engaging fishing theme with amplified action and visuals. ❌ High volatility may require significant patience.
✅ Solid RTP of 96.50% (with higher RTP variants available). ❌ Core mechanics are similar to other Big Bass titles.
✅ Feature-rich Free Spins with money collection and progressive multipliers. ❌ No progressive jackpot.
✅ Random modifiers (Dynamite, Hook, Bazooka) enhance free spins.
✅ Bonus Buy option available.

Suitable for: Fans of the Big Bass series, players who enjoy high-volatility slots, and those seeking rewarding bonus features with money collection and progressive multipliers.


  • Given the high volatility, it’s crucial to manage your bankroll effectively. Start with smaller bets to extend your gameplay and increase your chances of triggering the highly rewarding free spins.
  • Familiarize yourself with the various random modifiers and how the progressive multiplier works in the free spins by playing the game in demo mode as a free slot machine first.
  • Consider checking for enhanced RTP versions of Big Bass Boom on platforms like Stake Casino if maximizing your long-term return is a priority.

What is the RTP of Big Bass Boom?

The RTP (Return to Player) of Big Bass Boom is 96.50% in its default setting, which is considered above average for an online slot. Some exclusive versions offer an enhanced RTP of up to 97.97%.

Does Big Bass Boom have a free spins feature?

Yes, Big Bass Boom features a free spins bonus round with money symbol collection, progressive multipliers, and various random modifiers, triggered by landing three or more Scatter symbols.

What is the maximum win in Big Bass Boom?

The maximum potential win in Big Bass Boom is 5,000 times your total stake.

Is Big Bass Boom mobile-friendly?

Yes, Big Bass Boom is fully optimized for mobile play, ensuring a seamless experience on smartphones and tablets across various operating systems like iOS and Android.

What is the volatility of Big Bass Boom?

Big Bass Boom is a high-volatility slot, meaning wins can be less frequent but potentially very large.

What kind of random modifiers can appear in free spins?

During free spins, random modifiers like Dynamite (adds fish), Hook (pulls a wild), or Bazooka (changes symbols) can appear to enhance wins.


  • Big Bass Bonanza: The original iconic slot from Pragmatic Play/Reel Kingdom that started the popular fishing series.
  • Big Bass Splash: Another popular installment in the Big Bass series, offering similar money collect mechanics and progressive multipliers.
  • Big Bass Halloween II: A horror-themed Big Bass slot that shares core mechanics and high volatility.
  • Thunder Reels: A classic slot from Pragmatic Play (not directly related to Big Bass, but provides a contrast in classic slot experience).
  • Fishin’ Frenzy: A classic fishing-themed slot from Reel Time Gaming with a popular money collect feature in its free spins.