Big Bass Boom

Big Bass Boom slot game showing fisherman with white cowboy hat and sunglasses next to 5x3 underwater reels with bass fish, monster truck, fishing rod, tackle box and dragonfly symbols on sandy seabed
Play Online
Pragmatic Play certified, licensed provider with 97.97% RTP
97.97%
Return to Player
5,000x
Maximum Win
10
Paylines
£0.10
Minimum Bet

High Volatility Fishing Action

Four out of five volatility rating means less frequent wins but substantially larger payout potential when bass money symbols and wild fishermen align during free spins rounds.

Core Free Spins Mechanics

Wild Collection System

Every fisherman wild symbol that lands during free spins collects all visible bass money values on screen. Wilds accumulate throughout the bonus round, triggering retriggers at 4th, 8th, and 12th wild collected.

10x

Progressive Multipliers

Money collection multiplier escalates through four levels: 1x baseline, 2x at level two, 3x at level three, and 10x at level four when you collect twelve wilds total.

Money Fish Values

Bass symbols display random cash amounts each spin ranging from 2x to 5,000x total bet. Possible values include 2x, 5x, 10x, 15x, 20x, 25x, 50x, 100x, 200x, 500x, 1666x, 2500x, or 5000x.

Scatter Trigger Awards

Landing three scatter symbols awards ten free spins, four scatters grant fifteen spins, and five scatters deliver twenty free spins with pre-round modifier selection.

97.97%

Theoretical Return to Player

Big Bass Boom offers an above-average RTP of 97.97%, among the highest for Pragmatic Play fishing slots, providing better long-term return expectations compared to industry standard slots.

Symbol Payouts and Values

MT

Monster Truck

5x: £50,000 | 4x: £5,000 | 3x: £1,250 | 2x: £125

FR

Fishing Rod & Reel

5x: £25,000 | 4x: £3,750 | 3x: £750

DF

Dragonfly

5x: £12,500 | 4x: £2,500 | 3x: £500

TB

Tackle Box

5x: £12,500 | 4x: £2,500 | 3x: £500

BF

Bass Fish (Money)

5x: £5,000 | 4x: £1,250 | 3x: £250 + displays random cash value

A

Letter A

5x: £2,500 | 4x: £625 | 3x: £50

Big Bass Boom stands out in the crowded fishing slot genre by combining high RTP with genuinely volatile gameplay. The wild collection mechanic creates tension as you chase that fourth wild for retriggers, and the 10x multiplier at level four can turn modest money fish into massive payouts approaching the 5,000x cap. The pre-round modifiers add strategic depth that most competitors lack.

Slot Analysis Team

How the Bonus Round Works

  1. Land three or more scatter symbols anywhere on the five reels to trigger between ten and twenty free spins depending on scatter count. Before spins begin, zero to five random modifiers are selected that enhance the upcoming round.
  2. During free spins, fisherman wild symbols appear on all reels and substitute for regular symbols. Each wild that lands collects the displayed money values from all bass fish symbols visible on screen at that moment.
  3. All wilds that appear are counted and stored. When you collect the fourth wild, you retrigger with ten additional spins and the money collection multiplier increases to 2x for all subsequent collections.
  4. Eighth wild collected triggers another retrigger with ten more spins and bumps the multiplier to 3x. Twelfth wild collected provides final retrigger with ten spins and escalates multiplier to 10x for potentially massive collected values.
  5. Random features can activate when conditions are met: dynamite adds fish symbols when wilds present but no fish showing, hook pulls reels to reveal wilds when fish present but no wilds, and bazooka changes non-wild symbols when wilds present but no fish.

Big Bass Boom is a high volatility slot that can produce extended losing streaks before hitting significant wins. Set strict loss limits before playing and never wager money you cannot afford to lose. The 5,000x maximum win cap means the round ends immediately upon reaching that threshold, forfeiting remaining spins. Gamble responsibly.