Real slots enthusiast, with over 4 years of first-hand experience, consolidating expertise on general game mechanics & slots with bonus rounds;
Creative mindset proven by his ability to write compelling articles to raise awareness about his own music band, growing the average listeners by 98% since their debut week;
Within 1 year, he had already developed successful content strategies that helped drive growth for a tech company.
Hammerstorm: Heed Thor's Warcall and Increase Your Wins up to 10,000x Your Bet
Petru Matache Albulescu rated this game:
4.5 out of 5
Fight with fervour and enter the gates of Valhalla to get Thor's favor in Pragmatic Play's Hammerstorm slot. Summon Thor on your grid and send Mjolnir to call bolts of lightning to trigger bonus game respins and have a chance at the 10,000x maximum payout.
This slot is played on a 5x3 grid that expands during the bonus round, with 40 active paylines. You get notable features during the base game, like the Thor symbol, which appears exclusively on reel 1, and combined with a lightning money symbol with values between 0.5x and 10,000x your bet, it triggers the bonus respins game.
Let me start with the downsides. The base game payout wasn't amazing for a 96.5% above-average RTP game, and I was really bummed. Most of my payouts ranged between 0.25x to 1x my bet, with a few exceptions of a few 8x and 10x wins helped by the wilds. However, the fun started once I triggered the respins, which happened after 70 spins or so.
There are three types of modifiers that can be combined during the bonus game. I got to try every type of combination, but let me tell you more about the most notable sessions.
So, basically, the bonus game is played on a 5x5 grid. Thor comes and lands in a 2x2 position on the grid and then collects the coin and lightning money symbols while moving to their position. All lightning symbols that are collected contribute to a meter bar, which, if filled, will increase Thor's size.
I got to do that in my first session, with the Expand and Spins modifiers active. I got a maximum of 29 respins because of the modifier. Thor reached a 6x5 size, as the Expand modifier upgraded the grid to a 7x6 structure. At the end of my bonus game, I managed to get a 95x payout.
The second time, the Double feature was active, and I managed to get the Gold Coin and Lightning money symbols with double the value. Even though the payout was smaller than the previous session, it still reached a nice 89x payout in 19 respins.
You also get the option of the ante bet, which grants you a guaranteed Thor symbol on every spin for a 50x price, and 5 guaranteed lightning money symbols for 100x your bet. I thought they were a bit expensive for what they had to offer, though.
Overall, this slot kept my wallet within a positive balance range because of the respins bonus rounds, but the base game lacked in payouts. However, with a 96.5% above-average RTP, Hammerstorm has the potential to get you nice combinations across the board in both base and bonus games.
PROS
96.5% above-average RTP
10,000x max win potential
The respins feature has three different modifiers
Cool animations
CONS
Low payouts during the base game
Real Money Bonus Codes for Hammerstorm
Check out the latest bonuses and casino promotions available for Hammerstorm by Pragmatic Play.
200% First Deposit BonusFor new players
Not available to players from your country.
No code required
Low minimum deposit ($/€10 or lower)
Wagering:50x(D+B)
Minimum deposit:$6
Game Types:Slots
Max redeem of the bonus: $1000
Start a new account at ReyBets Casino. Fund your account with $6 or more to access 200% match bonus.
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Player Reviews
2 reviews
P
PocketJack-13
22.05.2026
3
not really feeling this one
not really feeling this one. thor showing up without triggering the bonus was annoying after a while. i tried the 100x ante for a bit and burned through cash quick, only got one respin feature and it paid like 52x total
R
ryan-plays
21.05.2026
3
The respins feature has a decent idea with the moving collection zone
The respins feature has a decent idea with the moving collection zone, but the base game feels too slow most of the time. I managed to reach the 4x4 expansion once, though the payout still ended below 90x after a long session.
Hammerstorm has a 96.5% RTP. It’s considered to be an above average return to player game and it ranks #3465 out of 22128 slots. Above average RTP slots are games with an RTP that ranges between 96.5% - 97.49%.
If you bet $100 on the Hammerstorm slot game, you will get back $96.5 in the long run.
Hammerstorm Volatility
i
LowLow-MediumMediumMedium-HighHigh
Hammerstorm is a high volatility slot. Play Hammerstorm if you are not limited by your budget and enjoy massive, less frequent rewards. This is a good choice for experienced players who enjoy the thrill of risk-taking and shorter play time.
Hammerstorm has 6 out of 25 most popular slot features.
BONUS ROUNDS
BONUS BUY
FREE SPINS
MULTIPLIER
WILD
SCATTER
EXPANDING WILDS
STACKED WILDS
SHIFTING WILDS
STICKY WILDS
AUTOPLAY
WALKING WILDS
RANDOM WILDS
TRANSFERRING WILDS
SPLIT SYMBOLS
PROGRESSIVE
GAMBLE
ADJUSTABLE PAYLINES
NUDGE
RETRIGGERING
COLOSSAL REELS
CASCADING REELS
ROTATING REELS
REEL RESPINS
HOLD FEATURE
WIN BOTH WAYS
How To Play Hammerstorm
Step 1
CHOOSE YOUR BET.
To tailor your wager, go to the bottom right of the screen and press the "+" or "-" icons to open the configuration panel. Inside this panel, you will find "+" and "-" buttons for adjusting the "bet level" and "coin value". Tap the "+" or "-" buttons beside each option until both settings match your preferred amount.
Step 2
IGNITE THE EXCITEMENT!
Press the large circular button with two arrows at the bottom right of the screen to activate the reels.
Step 3
USE THE AUTOPLAY FEATURE.
Right beneath the main "Spin" button, you will see the "Autoplay" option. Click it, and a "Settings" window will appear. Use the slider to pick how many spins you want the game to run automatically, then confirm by pressing the green "Start Autoplay" button. You can also enable "Turbo Spin" or "Quick Spin" from here for faster reel animations.
Step 4
MAXIMIZE THE SPEED.
Tap the tiny control nested inside the "Autoplay" button to adjust the spin pace. One tap triggers "Quick Spin," delivering a brisker experience, and a second tap enables "Turbo Spin," the highest speed tier. A third tap will return the game to its standard spinning speed.
Step 5
OPT FOR ANTE BET.
Press the small "Ante Bet" panel located on the left side of the reels to open the selection window and upgrade your current "bet" with enhanced feature conditions. From here you can choose between two options: "Ante Bet 1", which guarantees that the "Thor" symbol lands on reel 1 during every spin and increases the chances of triggering the "Respins" feature when combined with Lightning symbols, or "Ante Bet 2", which guarantees that at least five "Lightning Money" symbols appear somewhere on the screen each spin.
HAMMERSTORM SLOT FAQs
Can I try Hammerstorm for free and without registration?
Yes. Hammerstorm slot online is available for free with no download requirements on SlotsMate. You can play the game from both desktop and mobile, as long as you have a stable internet connection.
What is the RTP of the Hammerstorm online slot?
The RTP for the Hammerstorm slot is 96.5%. This is considered above the average RTP on our site which stands around 95% - 96.49%. This means that your experience with the slot will be even more enjoyable, considering that the house advantage is lower tha
What’s the maximum win for the Hammerstorm slot?
You can win a maximum of $1.75 on Hammerstorm slot machine. The maximum amount of coins you can bet per line multiplied by the highest paying symbol in Hammerstorm gives you this maximum win value.
Can you trigger free spins bonus feature in Hammerstorm?
No, the Free Spins feature cannot be triggered in Hammerstorm online slot. However, you may trigger other helpful features such as Autoplay, Wild, Multiplier, Reel Respins, Retriggering, Bonus Round and 3D Animation.
Is there a progressive jackpot available for Hammerstorm slot?
No, Hammerstorm does not provide the progressive jackpot feature, but you can still enjoy cool wins, its features, and an overall immersive gaming experience.
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RatingSoftwareYearRTPVolatilityBonus RoundsFree SpinsMultiplierWildScatterProgressiveReelsPaylinesMax win per lineOther features
Real slots enthusiast, with over 4 years of first-hand experience, consolidating expertise on general game mechanics & slots with bonus rounds;
Creative mindset proven by his ability to write compelling articles to raise awareness about his own music band, growing the average listeners by 98% since their debut week;
Within 1 year, he had already developed successful content strategies that helped drive growth for a tech company.
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Software
Release date
Slot type
Theme
RTP
Volatility
Hit Rate
Paylines
Min. Bet
Max Bet
Reels
Max win per line
Total max winnings
Mobile
Autoplay
Free Spins
Bonus Round
Bonus Buy
Wild
Multiplier
Scatter
Progressive
Adjustable paylines
Other features
Not available to players from your country.
Wild
