Since the first online slot was released, the iGaming industry has grown into a multi-billion-pound market, driven by technological advances and developers’ innovation. Pragmatic Play is a well-regarded development studio often considered a market leader for the creativity of its releases, with its titles available across a wide range of established platforms, includingBoyle Live Casino. The Hammerstorm title, released late in 2025, is no exception, implementing some interesting bonus features in the gameplay. To add to the gameplay, filled with additional bonus mechanics, the developers have added a mythology theme, specifically based on Nordic deities.
Hammerstorm Slot Background
Since its inception in 2015, Pragmatic Play has become one of the industry leaders, releasing over 820 totalgames. In their expansive game portfolio, Pragmatic Play has excelled at creating online slots; they have also released other game types, such as live casino games. Pragmatic Play has built a notable reputation in its relatively short time in the industry, thanks to itscutting-edge graphics across all its online games.
The gameplay in the Hammerstorm slot is set against a visually pleasant meadow backdrop, with bright colours throughout. The distant backdrop of the slot is snow-topped mountains, and on the other side, a tranquil lake lies below a cliff. Located atop the cliff, a golden shrine is visible, which shares a resemblance to aNordic temple, adding to the theme. The tranquil lake extends into the foreground, where a small fishing dock and a Norse boat with a red-and-white sail are located.
The playgrid in this slot game is centrally located in the view and set against a dark red reel backdrop. Pragmatic Play has implemented thin golden trims that separate the reels in this slot release, as well as thicker borders to separate the grid from the backdrop. Located above the playgrid in this slot, there are three unique chests, with golden coins scattered across the playgrid top, each of which can activate a bonus feature. The 5-reel, 3-row playgrid in this slot game is the industry standard and features 40 fixed paylines, which is about the same as in other online slots.
Hammerstorm Slot Symbols
The Hammerstorm slot game features a wide display of base game symbols, some of which complement the game’s theme more so than others. The lower-value symbols have drawn inspiration from classic playing card royals in their imagery, which are all uniquely coloured. In contrast, the higher-value symbols are represented by thematic imagery of common Norse elements.
Lower-Value Symbols
J
Q
K
A
Higher-Value Symbols
Horn
Gauntlets
Helmet
Axe
Shield
In addition to the base game symbols listed above, Hammerstorm also features a Wild symbol, which is depicted by Thor’s hammer. Additionally, there are 3 Lightning symbols in this slot release, each of which is depicted by a uniquely coloured lightning bolt. Lastly, there is a Thor symbol that can land on the reels, depicted by Thor against an electric backdrop.
Hammerstorm Bonus Features
As with all Pragmatic Play releases, there is a range of bonus features that can be activated in this slot game. The Wild symbol in this slot release can appear on any of the reels and can substitute for any of the base play symbols to create or extend a matching combination when available.
The Lightning symbols can also appear on any of the reels in the Hammerstorm slot game, which, if landed, will be collected in the respective chests located above the reels. On any occurrence of a Lightning symbol landing and being collected to its chest, the Respins feature may be randomly triggered, with the respective modifier being active. The modifiers for the bonus feature in this slot are Double, Expand, and Spins, each represented by a unique colour and providing distinct gameplay if triggered. It is worth noting that more than one of these modifiers can be randomly triggered at the same time, combining the gameplay features for the Respin bonus. In addition to Lightning symbols having the potential to trigger the Respins feature randomly, if one of these symbols lands alongside the Thor symbol, it will be automatically triggered.
The Respins feature in the Hammerstorm slot game will begin with 5 respins, where new Silver and Gold Coin Money symbols can land on the reels. Additionally, there are Silver and Gold Lightning Money symbols that can land on the reels only in the Respins feature. Both the Coin and the Lightning Money symbols in the Respins feature will take a random value, ranging from 0.5x to 10,000x the bet stake.
The Respin feature is played on a 5×5 playgrid, with a zone beginning marked at a 2×2 size. During the Respins, the marked one will move to a random position between each spin, collecting the value of all Money symbols landed inside the marked grid. All Lightning Money symbols that are landed during the Respin feature will be collected in a meter, which can increase the marked grid size and award additional Respins.
As mentioned, three modifiers can be active for the Respins feature, each with a different gameplay function. These modifiers include:
- Double – If Gold Coin Money symbols are landed in the marked grid, their value will be collected twice.
- Expand – The Respin feature is played on a 7×6 playgrid rather than the 5×5 layout.
- Spins – During the Respin feature, a +1 Spin symbol can appear on the reels, and if landed in the marked zone, an additional respin is awarded.