Boom Pirates

(Microgaming) Slot Review

Author
James Hargreaves
Last updated: 12 March 2026

Playing Boom Pirates - First Impressions

I started my session on Boom Pirates expecting a standard grid, but the 5x6 layout immediately felt substantial. Foxium has done a decent job with the visuals; it’s not just another generic sea adventure. The atmosphere is lively without being annoying, which matters when you’re grinding through a few hundred spins. It feels polished, and the initial base game spins move at a good pace.

Boom Pirates slot screenshot

Game Mechanics and Expanding Reels

The defining moment in Boom Pirates occurs when the pirate ship fires cannonballs to expand the grid. It shifts from a default 5x6 layout to a massive 9x6 board, unlocking up to 10,077,696 ways to win. It effectively breaks the monotony of base gameplay, as you are constantly waiting for that explosion to open up the board for better connections.

Boom Pirates Symbols and Paytable

The paytable can be quite demanding as you need long chains of symbols to see proper returns. Captain Mary is the highest paying symbol, awarding 25x your stake if you manage to land nine on a payline. The male pirate holding a bomb follows closely, paying out 20x for the same combination, while the parrot offers 15x.

Lower down the order, you have the cannon and barrel symbols, paying 10x and 7.5x respectively for nine matches. The traditional card suits make up the low-value fodder, giving you just 5x. It is a steep requirement, so you really need those expanded reels to hit the top combinations.

Symbol Payouts

Symbol Payout
icon 1 9 → x25
8 → x12.5
7 → x10
6 → x7.5
5 → x5
4 → x2.5
3 → x1.5
icon 2 9 → x20
8 → x10
7 → x7.5
6 → x5
5 → x3
4 → x2
3 → x1.2
icon 3 9 → x15
8 → x7.5
7 → x5
6 → x3.5
5 → x2
4 → x1.5
3 → x1
icon 4 9 → x10
8 → x5
7 → x3
6 → x2
5 → x1.5
4 → x1
3 → x0.8
icon 5 9 → x7.5
8 → x4
7 → x2.5
6 → x1.5
5 → x1.2
4 → x0.8
3 → x0.6
icon 6 9 → x5
8 → x2.5
7 → x1.5
6 → x1.2
5 → x1
4 → x0.7
3 → x0.5
icon 7 9 → x5
8 → x2.5
7 → x1.5
6 → x1.2
5 → x1
4 → x0.7
3 → x0.5
icon 8 9 → x5
8 → x2.5
7 → x1.5
6 → x1.2
5 → x1
4 → x0.7
3 → x0.5
icon 9 9 → x5
8 → x2.5
7 → x1.5
6 → x1.2
5 → x1
4 → x0.7
3 → x0.5
icon 10 9 → x5
8 → x2.5
7 → x1.5
6 → x1.2
5 → x1
4 → x0.7
3 → x0.5
icon 11 Scatter
icon 12 Scatter

Foxify and Bonus Features

One button that caught my eye during testing was the Foxify toggle. It increases your total bet by 50% but boosts your chances of triggering free spins by the same amount. I played with this active for a while; while it drains the balance faster, the increased frequency of feature teasers was noticeable compared to standard play.

If you lack patience, there is an option on some versions to buy the free spins directly for 100x your stake. The bonus round aggressively uses the expanded grid mechanics. This is where the volatility really shines, although triggering it organically without the buy requires some serious persistence.

The free spins feature is where the game truly opens up. The grid expansion tends to trigger more often here, capitalizing on those millions of winning ways. It feels much more volatile than the base game, and the anticipation of a fully unlocked 9x6 grid kept me glued to the screen.

RTP, Volatility and Win Potential

Mathematically, Boom Pirates sits in a strange middle ground. The RTP hovers around 96.07% to 96.19%, which is fairly standard. It is considered medium-to-high volatility, meaning you might endure dry spells. However, the max win sits at 3,800x your stake, which I found a bit modest given the game boasts over 10 million ways to win.

Boom Pirates slot screenshot

Final Thoughts on Boom Pirates

After a solid session, I think Boom Pirates is worth a punt for the expanding reel mechanic alone. It offers a distinct gameplay loop that separates it from standard 5x3 grids. While the max win might put off players chasing life-changing jackpots, the visual flair of the cannonballs opening up the board keeps the entertainment value high.

Boom Pirates slot screenshot 1
Boom Pirates slot screenshot 2
Boom Pirates slot screenshot 3
Boom Pirates slot screenshot 4

Boom Pirates Ratings

Theme & Symbols
0
Sounds & Music
0
Bonus Features
0
RTP (96.19%)
0
Max Win (3,800x)
0
Originality
0

Boom Pirates FAQ

Is Boom Pirates slot safe to play?
Yes. Boom Pirates is developed by Microgaming, a licensed and regulated game provider. The slot uses a certified RNG (Random Number Generator) ensuring fair outcomes.
Can I play Boom Pirates for free?
Yes, you can play Boom Pirates in demo mode right here on our website without any registration or deposit required.
What is the maximum win in Boom Pirates?
The maximum win in Boom Pirates is 3,800x your bet.

Boom Pirates — Comparison

Game RTP Volatility Max Win Rating
96.19% High x3800
96.26% Average x2000 5
96.40% Average x5000 6
96.31% Average x10000 6
96.5% Average x570 6
96.1% Average x1000 6
96.03% High x1000 5
High x5000
96.5% High x5000 8
96.51% Low x2833 6
95.29% Average x2400 7
96.37% Average x1333 7
96.20% Average x2500 9.5
96.12% High x25000
92.03% Average x500
96.22% High x25000
96.12% High x10000
96.12% High x2.219
96.15% High x25000
96.19% High x10000
96.27% High x5000
96.18% High x1000
96.12% High x2219
96.03% Average x400
96.02% Average x2500
96.12% High x5000
96.12% High x5000
96.06% Average x2000
96.20% High x22640 7