Big Bass Mission Fishin'

Big Bass Mission Fishin' slot featuring tactical fisherman with goggles, underwater ocean backdrop with coral, green bass fish leaping above golden logo, military-style fishing gear and high-tech speargun
Play Online

Powered by Pragmatic Play | Reel Kingdom | 96.50% RTP | Tested for Fair Play

96.50% RTP
3,334x Max Win
10 Paylines
5/5 Volatility
$0.10 Min Bet
$375 Max Bet

Tactical Underwater Mission with Progressive Multipliers

Big Bass Mission Fishin' drops you deep below the surface with a heavily-armed fisherman on a high-stakes mission. This 5-reel, 3-row video slot from Reel Kingdom and Pragmatic Play combines military aesthetics with underwater fishing action across 10 fixed paylines. The game's high volatility delivers explosive potential, capping wins at 3,334x your total bet when you trigger the progressive free spins feature with multipliers escalating from 1x to 10x as you collect Wild symbols.

Game Mechanics Breakdown

Core Setup

  • 5x3 reel grid with 10 paylines paying left to right
  • Bet range from $0.10 to $375.00 per spin
  • High volatility (5 out of 5 lightning bolts)
  • Theoretical RTP locked at 96.50% across all modes
  • Maximum win capped at 3,334x total bet

Volatility Rating

MAX

Maximum volatility means infrequent wins balanced by the potential for massive payouts. The game pays out less often on average, but landing the Free Spins with progressive multipliers can trigger chain reactions reaching the 3,334x cap in a single bonus round.

96.50% Return to Player

Symbol Paytable (at maximum $375 bet)

F
Fisherman
$50,000
D
Dragonfly
$25,000
S
Speargun
$12,500
T
Tackle Box
$12,500
B
Speedboat
$5,000
A
Ace
$2,500
K
King
$2,500
Q
Queen
$1,250

Bonus Features Deep Dive

Free Spins with Wild Collection

Land 3, 4, or 5 Scatter symbols (the green bass fish) anywhere on the reels to trigger 10, 15, or 20 free spins respectively. Before the round starts, pick tiles to reveal modifiers until you hit a boot—possible boosts include more fish symbols, more Wilds, increased feature triggers, starting at level 2, or +2 extra spins.

Progressive multipliers: 1x → 2x → 3x → 10x

Wild Multiplier Progression

During Free Spins, every Fisherman Wild symbol collects all Money Fish values visible on screen. Wilds remain collected throughout the entire bonus. Every 4th Wild you collect retriggers the feature, awards 10 more free spins, and increases the multiplier: level 2 at 2x, level 3 at 3x, and level 4 at a massive 10x multiplier.

Retrigger threshold: 4, 8, 12 Wilds collected

Stack the Cash Feature

Alternative to Free Spins—a hold-and-spin mechanic where normal symbols disappear and only Fish Coin symbols (worth 1x to 25x bet) and blanks remain. Start with 4 respins that reset every time a coin lands. Robo-crabs under each reel collect values. When a reel fills, its total moves to the crab and the reel clears. Every new coin triggers a bomb that doubles a random reel's values.

Coin values: 1x–25x bet

Money Symbol Values

All fish-themed paying symbols double as Money symbols during Free Spins. Each spin, they display a random multiplier value that can be collected by landing a Wild. Possible values range from 2x up to an incredible 5,000x your total bet, creating huge win potential when combined with the 10x collection multiplier at level 4.

Range: 2x, 5x, 10x, 15x, 20x, 25x, 50x, 100x, 200x, 500x, 5,000x

How to Start Your Mission

1

Set Your Bet

Use the +/− buttons in the bottom bar to adjust your total bet between $0.10 and $375. Toggle Ante Bet ON for 15x multiplier and higher scatter frequency, or keep it OFF at 10x for normal play with Buy Feature access.

2

Spin or Buy

Hit the large circular Spin button to play normally, or click Buy Feature (100x your bet) to instantly trigger either Free Spins or Stack the Cash. You can enable Turbo Spin for faster reels or set up Autoplay for hands-free sessions.

3

Land Scatters

Watch for the green bass Scatter symbols on all five reels. Get 3+ to activate the bonus selection screen where you choose between Free Spins (Wild collection with progressive multipliers) or Stack the Cash (robo-crab hold-and-spin). Two scatters can sometimes trigger helper features like nudge respins or hook pulls.

Ante Bet Mode

Switching Ante Bet to ON increases your bet multiplier from 10x to 15x (so a $0.01 base becomes $0.15 instead of $0.10). In exchange, the reels contain significantly more Scatter symbols, boosting your chances of triggering Free Spins naturally. However, the Buy Feature button becomes unavailable in this mode.

Buy Feature Option

When Ante Bet is OFF, you can pay exactly 100x your current total bet to instantly launch the bonus round. After confirming the purchase, you select whether to play Free Spins or Stack the Cash. The RTP remains 96.50% whether you trigger features naturally or buy them.

The Free Spins progression system is where Big Bass Mission Fishin' separates itself from the crowded fishing slot category. Reaching level 4 with the 10x multiplier while Money Fish display 500x or 5,000x values creates legitimate mega-win potential. The tactical theme is well-executed with the rugged fisherman character, military-grade gear, and underwater ruins backdrop—far more engaging than generic lake fishing. High volatility players will appreciate the 3,334x cap isn't reached easily, but the progressive Wild collection mechanic makes every retrigger feel impactful. — Casino Slots AU, Senior Reviewer

Strengths and Limitations

What Works

  • Progressive multipliers up to 10x during Free Spins create escalating excitement
  • Money symbols with values up to 5,000x bet offer explosive win potential
  • Stack the Cash provides a distinct alternative to standard free spins
  • Helper features (dynamite, hook, bazooka) keep bonus rounds dynamic
  • Strong underwater tactical theme with quality visuals and character design
  • RTP locked at 96.50% across all modes including Buy Feature
  • Wide betting range accommodates casual players and high rollers

Consider These

  • Maximum 5/5 volatility means long dry spells between significant wins
  • 3,334x max win cap is lower than some competing high-volatility slots
  • Reaching level 4 (10x multiplier) requires 12 Wild collections—rare occurrence
  • Ante Bet disables Buy Feature, forcing a choice between two convenience options
  • Base game pays are relatively modest without bonus features

Frequently Asked Questions

Free Spins is a traditional bonus where Wilds collect Money symbol values and multiply them by a progressive multiplier (1x/2x/3x/10x) as you retrigger. Stack the Cash is a hold-and-spin feature where only coin symbols (1x-25x) land, respins reset when coins hit, robo-crabs collect values from filled reels, and bombs double values. Free Spins offers higher max win potential due to 5,000x Money values and 10x multipliers, while Stack the Cash provides steadier accumulation with the doubling mechanic.
You need to collect 12 Wild symbols during a single Free Spins session. The first 4 Wilds trigger level 2 (2x multiplier) and award 10 more spins. The next 4 Wilds (8 total) trigger level 3 (3x) and another 10 spins. The final 4 Wilds (12 total) trigger level 4 with the maximum 10x multiplier and 10 additional spins. After level 4, no further retriggers are possible. Helper features like the hook pull can assist by bringing Wilds onto the screen when only fish symbols appear.
It depends on your playstyle and bankroll. Ante Bet (15x multiplier) increases your cost per spin by 50% but significantly boosts Scatter frequency, making natural bonus triggers more common—ideal for longer sessions where you want features to hit organically. Buy Feature (disabled with Ante Bet ON) lets you pay 100x bet to instantly trigger a bonus—better for shorter sessions or when you want guaranteed feature access. Both maintain 96.50% RTP, so the choice is purely about preference and budget management.
The instant your total win within a Free Spins round reaches 3,334x your triggering bet, the bonus immediately ends. You receive the capped win amount, but all remaining free spins and any potential retriggers are forfeited. This is a hard cap enforced by the game—wins cannot exceed it under any circumstances. At maximum $375 bet, the cap equates to $1,250,250, while at minimum $0.10 bet it's $333.40.
After triggering Free Spins, you select tiles that reveal modifiers until you uncover a boot (which ends selection). Possible modifiers: MORE FISH increases fish Money symbol frequency on reels; MORE FISHERMAN adds more Wild symbols; MORE DYNAMITES, HOOKS AND BAZOOKAS boosts the chance of helper features triggering; START FROM LEVEL 2 begins the round at 2x multiplier (bypassing the need to collect 4 Wilds for the first retrigger); +2 SPINS adds 2 extra free spins to the initial award and every subsequent retrigger. You can reveal multiple modifiers if you avoid the boot.

About the Provider

Big Bass Mission Fishin' is developed by Reel Kingdom, a boutique studio under the Pragmatic Play umbrella. Reel Kingdom specialises in the Big Bass series, having created multiple iterations of the fishing theme with varying mechanics and features. Pragmatic Play, the parent company, is a leading content provider to the iGaming industry with offices worldwide and hundreds of HTML5 slots, live casino games, and bingo products certified across numerous regulated markets including the UK, Malta, and multiple Australian states.

Play Responsibly

High volatility slots like Big Bass Mission Fishin' can produce extended losing streaks before hitting significant wins. Set loss limits before playing, never chase losses, and only wager amounts you can afford to lose. If gambling is negatively impacting your life, seek help through services like Gambling Help Online (1800 858 858) or visit gamblinghelponline.org.au. Remember: the house edge means the casino always has a mathematical advantage over time.