Set sail with 7Rings Gaming’s Cannon Storm! This 5×4 pirate slot features 20 paylines, Moving Cannons, upgradable symbols, and 12 Free Spins. A true treasure hunt.

Cannon Storm Feature Summary
| Feature Name | Description | Trigger / How it Works |
|---|---|---|
| Moving Wild Symbol | The Wild symbol substitutes for all paying symbols except the Scatter. | Lands on reels and moves down one position on each subsequent spin. |
| Moving Cannon Symbol | A special symbol that also moves down the reels. | Lands on reels and moves down one position on each subsequent spin. |
| Cannon Upgrade | Cannons can be hit by “cannonballs” (from other cannons). Each hit adds shooting capacity. | If a cannonball hits another cannon, the target cannon gets +1 shooting capacity for its next spin. |
| Free Spins | The main bonus round. | Triggered by landing 3 or more Scatter symbols in the base game. |
| Buy Bonus | Two options to purchase direct entry into features. | 1. FS BOOSTER: 5x chance of landing 3 Scatters. 2. ALL HANDS ON DECK!: Guarantees 3 Scatters to activate a bonus game with 12 Free Spins. |
How to Play the Cannon Storm Demo
Playing the Cannon Storm free play version is straightforward. You start by setting your bet value for the 20 fixed paylines, and then you hit the spin button.
The game also includes standard quality-of-life features. An Auto Play menu allows you to set a specific number of automatic spins, along with conditions to stop, such as when a bonus is won, if losses reach a threshold, or when a single win hits a certain amount. There is also a Turbo button to speed up the reel animations for a faster-paced session.
What is the Cannon Storm Paytable?
The paytable details the value of each symbol. All wins are paid from left to right on active paylines, and only the highest win per combination is paid.
The high-value symbols are the Wild, the Treasure Chest, the Goblet, the Red Gem, and the Green Coin. The Wild is the most valuable, paying 20.00 for a 5-of-a-kind match (at a 2.00 bet). The low-value symbols are the pirate-styled 10, J, Q, K, and A. These symbols require at least 3 matches to form a win.
Vlad’s Expert Tip: Pay close attention to the Wild symbol. Not only is it the highest-paying symbol in the game, but its “moving” nature means a single Wild can contribute to wins over multiple spins. Don’t underestimate its value.
Symbol Legend: Icons of the High Seas
These symbols do more than just pay; they build the world of this pirate-themed slot.
| Symbol | Its Role in the Pirate Legend |
|---|---|
| Treasure Chest | The ultimate prize. This symbol represents the goal of every pirate voyage—a chest overflowing with gems and gold. |
| Goblet | A sign of a successful raid. This jewel-filled goblet is the kind of loot a pirate captain would claim for himself. |
| Green Skull Coin | Cursed treasure. This glowing coin, marked with a skull, hints at the danger and adventure tied to the pirate’s life. |
The Core Mechanic: Walking Cannons and Wilds
The defining feature of the Cannon Storm game is its “walking” symbols. This mechanic applies to both the Wild symbols and the special Cannon symbols.
When a Wild or Cannon symbol lands on any reel, it pays out any initial wins. Then, on the next paid spin, that symbol moves down one position on its reel. This process repeats on each subsequent spin until the symbol moves off the bottom of the screen.
This system creates a dynamic and persistent game state. A Wild landing on the top row gives you four spins of potential line-completing action. Landing multiple Cannons or Wilds at once fills the board with moving pieces, creating a level of strategic depth not seen in many standard online slots.
How does the Cannon Upgrade feature work?
This is where the mechanic gets really interesting. The Cannon symbols aren’t just for show; they can be enhanced via the Cannon Upgrade feature.
If a “cannonball” (fired during a special animation) shoots another Cannon symbol, the cannon that was hit receives +1 additional ball shooting capacity. During the next spin, this enhanced Cannon will shoot +1 ball. If a Cannon is hit by ‘X’ number of balls, it receives +X amount of shooting capacity. This capacity is saved until the Cannon symbol leaves the game field. This creates a powerful stacking effect where cannons can become more potent as they move down the reels.
How to Trigger the Free Spins Bonus Game
The main bonus is a Free Spin round. To activate it, you need to land 3 or more Scatter symbols (the “FS” Skull and Crossbones) anywhere on the reels during the main game.
The game rules specify that Scatters only appear in the Main Game. The “ALL HANDS ON DECK!” Buy Bonus option confirms that a standard trigger (likely 3 Scatters) awards 12 Free Spins, setting the stage for the game’s main event.
What are the Cannon Storm Buy Bonus Options?
For players who prefer to get straight to the action, the Cannon Storm slot demo offers two Buy Bonus features.
- First Buy Bonus FS BOOSTER: This option increases the chances of landing 3 Scatters by fivefold (5x). It’s important to note this disables other Buy Bonus features while active.
- Second Buy Bonus ALL HANDS ON DECK!: This is the direct entry option. It guarantees that 3 Scatter symbols will land on the reels, activating the Bonus Game with 12 Free Spins.
The Pirate’s Gambit: Is the Buy Bonus Worth It?
This brings us to the big question. The “ALL HANDS ON DECK!” option gives you instant gratification, but it comes at a fixed, high cost. The “FS BOOSTER,” on the other hand, is a curious middle ground.
Paying for a chance at the bonus is a risky proposition. You could spend a significant portion of your balance and still not trigger the feature. In many ways, this “booster” feels like a trap for the impatient. It’s often cleaner to either hunt the bonus naturally in the base game or commit fully to the “All Hands on Deck!” purchase. This “booster” option… I’m skeptical of its real value.
Cannon Storm Volatility and RTP Analysis
Information regarding the Cannon Storm RTP (Return to Player), volatility, and maximum win potential is not published in the provided game files.
Because these key mathematical models are missing, it’s difficult to give a full analysis. However, the presence of two Buy Bonus options and a “booster” feature strongly suggests a game with high volatility. High volatility slots often concentrate their payout potential in the bonus rounds, which can be difficult to trigger naturally—explaining why a player might be tempted to buy them. Players testing the demo should be prepared for potentially long stretches of low-value wins in the base game while hunting for the Free Spins.
The Cannon’s Paradox: The Upgrade’s True Value
Let’s talk about the Cannon Upgrade mechanic for a second. It sounds great, right? More shooting capacity. But what is its actual value?
The paradox I see in the Cannon Storm demo is that the upgrade itself doesn’t guarantee a win. It only enhances a symbol that is, by nature, temporary. You could have a fully upgraded cannon with +5 capacity, but if there are no high-value symbols or wilds nearby for its animations to interact with… it’s just a light show. It’s a chase mechanic. The anticipation of the upgrade is the real product here, not necessarily the upgrade itself. It’s designed to keep you spinning to see what that “+X capacity” could do, even as the symbol sinks off the screen. Smart design, but tricky.
Audio-Visuals on the High Seas
Visually, Cannon Storm is polished. It fits squarely into the pirate and treasure hunt genre. The symbols are well-drawn, from the gold-filled chests to the barnacle-encrusted card royals. The game board is set against the deck of a ship, with cannons visible on either side and a calm ocean in the background.
The animations are the highlight. The downward march of the symbols is smooth, and the cannon firing sequences are energetic. It’s a solid, atmospheric presentation that supports the gameplay. Players looking for other games that nail this theme might enjoy the parrot-filled Pirots 2 slot demo or the simpler, classic feel of the Pirate Bonanza free play game.
Vlad’s Expert Tip: Don’t get mesmerized by the walking symbols. Your balance is still the most important thing on the screen. The Cannon and Wild symbols are designed to keep you engaged—make sure you’re setting your bet at a level that can sustain the hunt.
Captain’s Log: Inside the Arsenal
Here are a few details about the Cannon Storm game mechanics that are easy to miss but crucial for understanding the game.
- Wilds Walk Too: The game info confirms that in the Main Game, Wild symbols move down each spin, just like the Cannon symbols. This is a key detail, making Wilds even more valuable.
- Wilds Pay Smart: The Wild doesn’t just substitute; it “substitutes for the highest paying combination on the payline.” This is a player-friendly rule that ensures you always get the best possible win.
- Scatters are for Base Game: The Scatter symbol “appears only in the Main Game.” This implies you cannot retrigger the Free Spins round by landing more Scatters during the bonus.
Alternative Slots for Cannon Storm Fans
If you enjoy the core mechanics of the Cannon Storm slot, you’re in luck. The industry is full of innovative titles.
- For the “Walking” Mechanic: While not in the database, the concept of walking symbols is famous. However, if you like persistent symbols and grid-based action, the ‘Heist’ theme of the Le Bandit demo or the high-stakes action in the Wanted Dead or a Wild slot offer a similar “what happens next?” thrill.
- For the Bonus Buy: If you’re here for the Buy Bonus, you can’t go wrong with the classics. The Sweet Bonanza 1000 slot demo and the Sugar Rush 1000 free play are benchmarks for this feature.
- For High-Octane Features: If you just want complex, engaging mechanics, the legendary Money Train 3 demo is a masterclass in feature-stacking.
- For Treasure Hunting: If the theme is what draws you, the Key of the Nile slot game or the Amazing Aztecs 2 Ultim8 Pays demo deliver classic treasure-hunting slots experiences. You can find all these and more in the full demo slots library.
Vlad’s Expert Tip: When testing any demo with a “walking” mechanic, your first 20-30 spins are just to learn the cost of the feature. Pay attention to how many spins it takes for a top-row Wild to fall off. That’s the real “cost-per-feature” you’re paying.
Final Verdict on the Cannon Storm Free Play Demo
So, what’s the final haul?
The Cannon Storm slot is a surprisingly robust game from 7Rings Gaming. It takes a familiar pirate theme and successfully bolts on an engaging, persistent “walking” symbol mechanic. The Cannon Upgrade feature adds a layer of chase and excitement, even if its true value is sometimes debatable.
The lack of public RTP and volatility data is a definite drawback. It forces you to rely on the “feel” of the demo, which can be misleading. That said, the demo is the perfect tool for exactly this situation. You can test the base game’s rhythm and experiment with the Buy Bonus options without risking a single coin.
Is it a revolutionary game? No. It’s not the next Book of Dead or Big Bass Amazon Xtreme. But it’s a well-built, entertaining slot with a solid core loop. For players who enjoy watching features build over multiple spins, the Cannon Storm demo is absolutely worth a session.
FAQ
Cannon Storm’s main mechanic involves Moving Cannon and Wild symbols that walk down the reels, with Cannons being upgradeable.
You trigger the Free Spins round by landing 3 or more Scatter symbols anywhere on the reels during the main game.
Yes, the game offers two Buy Bonus options: an “FS BOOSTER” for 5x Scatter chances and “ALL HANDS ON DECK!” for 12 guaranteed Free Spins.
The Cannon Upgrade adds +1 shooting capacity to a Cannon symbol, increasing its potential for the next spin.
Yes, in the Main Game, Wild symbols also move down one position on each spin, just like the Cannon symbols.
Cannon Storm was developed by 7Rings Gaming.
The Cannon Storm slot game is played on a 5×4 grid with 20 fixed paylines.
A full Cannon Storm free play demo is available right here on Respinix.com.








