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Hammer of Thunder Slot - Review, Free & Demo Play

Hammer of Thunder
Hammer of Thunder
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Updated: 22.07.2025
Reviewed by: Fabio Duarte
Hammer of Thunder is one of the newest online slots released on 25/05/2023 and provided to gamblers by Spadegaming. This is a dynamic and enthralling game that features Vikings and gods and is capable of giving out generous payouts to players. In this review, we will discover the most important info about Hammer of Thunder: its RTP, volatility, payouts, and, of course, bonus symbols that will make your gaming experience bountiful and fun.
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In this review
  1. Slot details
  2. Theme
  3. Bonus Rounds & Free Spins
  4. Summary
  5. Where to play
General information about Hammer of Thunder slot

General information about Hammer of Thunder slot

Rating by Fabio Duarte:
7.5
Spadegaming
Write a review +25 SJ points
  • Release Date:
    25.05.2023
  • Volatility:
    Medium
  • RTP:
    96.9%
  • Multiplier:
    Yes
  • Max. win:
    285x
  • Bonus game:
    No
  • Free spins:
    Yes
  • Scatter Symbol:
    Yes
  • Wild symbol:
    Yes
  • Symbol Stacked:
    No
  • Jackpot Game:
    No
  • Slot lines:
    Cluster pays
  • Slot reels:
    6
  • Layout:
    6-6
  • Stakes range (€/£/$):
    0.2 to 500
  • Slot Theme:
    Vikings
  • Technology:
    JS, HTML5
More infoLess info

Licensed and tested by

  • BMM Testlabs
  • iTech Labs
  • MGA
  • RNG

How to Play

Follow our step-by-step tutorial and start playing Hammer of Thunder in any casino of your choice:

  1. Load the game on your laptop or mobile device
  2. Press the ‘i’ button in the lower-left corner of the screen
  3. Study the slot’s symbols, payouts, and bonus features
  4. Select your bet amount between €0.2 and €500
  5. Adjust the sounds and the screen mode, if you like, below the game board
  6. Click on the animated circular arrow button to start your first round

Hammer of Thunder is a slot machine with a 6x6 layout without any fixed paylines. The objective of this video slot is to match 8 or more symbols of the same type on any position of the grid. After you do that, you will be paid a reward according to the game’s paytable. Keep in mind that all payouts on the slot’s paytable depend on your chosen stake value. Meaning, if you pick the highest possible stake value, you will be eligible for higher prizes.

The unique bonus features available to gamblers in Hammer of Thunder are Cascading, Hammer of Thunder, and Free Game features. We are going to explore each one of them and the available prizes further in this review.

Hammer of Thunder RTP and Volatility

8 
Hammer of Thunder has got an RTP rate of 96.89% and medium volatility.
RTP and volatility of any slot machine are important metrics that will define its general profitability for the player. Like most modern slot machines, Hammer of Thunder has a decent Return to Player of 96.89%, which is slightly higher than the average of 96%. With the game’s medium volatility, you can be sure that the number of dead spins in your gaming rounds will be moderate.

Theme

8 

Hammer of Thunder is a history-themed slot machine that revolves around Vikings, heroic conquerors of the past. As you play the game, you get the chance to acquaint yourself with some of the Vikings that will gladly add more luck to your spins along the way. The game’s bright and exuberant visual component will take you back to the times of heroes and gods and let you feel the power of many generations of Vikings just in the palms of your hands.

On the regular paytable in Hammer of Thunder, you will see such symbols as card values 10, J, Q, K, and A. As the values of the symbols rise, you can see such medium-paying icons as a Viking’s helmet, a horn, and a pair of hammers. But the most valuable regular symbols in this slot machine are Vikings themselves: there are 3 charismatic heroes you can come across on the reels, including the god of thunder himself.

As we proceed to the special symbols of the game, there are Scatters and 2 types of Wild symbols. 4 or more Scatter symbols anywhere on the playing grid will trigger the Free Game feature. Wilds substitute for all regular symbols on the reels, and Sticky Wilds also trigger Respin in the Hammer of Thunder feature.

Theme
Hammer of Thunder slot Paytable

Mobile Compatibility

Hammer of Thunder slot Mobile

Like all modern slot machines developed by Spadegaming, Hammer of Thunder is based on HTML5 and JavaScript technologies. Among other useful things, they allow this slot to be fully compatible with all mobile devices, be it Android, iOS, or Windows Phone. So if you want to play Hammer of Thunder on your phone or tablet, just make sure that your device is up-to-date and has a stable Internet connection. After that, launch the game in the browser and enjoy your spins even on the go.

About Spadegaming

Spadegaming is a Malta-based casino provider that started its journey in the industry back in 2007. This is one of the true monsters of the industry that has enriched international casino websites with more than 160 high-quality live games and slot machines. Spadegaming holds such respectable licences as the MGA licence and the Curacao Gaming Authority licence. On top of that, the company uses the latest technologies in iGaming to ensure an equally safe and effective gambling experience for all its clients.

The diverse portfolio of Spadegaming includes slot machines of all possible themes: fruit, history, mythology, Asian, Egyptian, food, and many others. Be sure that you will find a slot to your liking developed by Spadegaming even if you’re the pickiest gambler. Try exploring Emperor Gate, Fishing God, or 5 Fortune SA.

Bonus Rounds & Free Spins

8.1 

Hammer of Thunder

After every win in the slot, the Hammer of Thunder symbol stays on the grid, while other symbols are replaced in their positions to create room for more winning combinations. One or more Hammer of Thunder symbols on the grid will trigger 1 Respin if there are no new winning combos on the last spin. After the Respin, all symbols including the Hammer of Thunder will be removed from the grid.

Hammer of Thunder slot Respin

Cascading Feature

Thanks to the Cascading Feature, after each spin, winning combos will be removed from the grid to create room for more symbols and more possible winning combos. New symbols will fall to the empty positions from the top of the screen. This cascading will go on until there are no new winning combinations on the grid.

Free Games

To activate the Free Game feature, you have to land 4 or more Scatter symbols on the grid. Upon activating, the feature will reward you with 10 Free Spins. After that, each additional Scatter symbol appearing on the same spin will reward 2 more Free Spins.

Hammer of Thunder slot Free spins

Hammer of Thunder Demo Play

Before you get to play Hammer of Thunder in a casino for real cash wins, we advise that you try this game for free in our demo version. There’s no need to complete the registration process or deposit any cash: on our user-friendly website, you can play Hammer of Thunder for fun whenever you want. This demo mode is also a good way to test the slot’s mechanics and bonus features before depositing real money in a casino.

Max Win

6 
The max win you can get in Hammer of Thunder is 285x your bet.
Hammer of Thunder gives gamblers plenty of chances to reach the highest bet multiplier and thus significantly increase their winnings. With the slot’s Cascading mechanic, you can keep getting new wins on the grid over and over again without stopping until your balance finally satisfies you. Also, whenever you get the chance to trigger such bonuses as Hammer of Thunder and Free Game, don’t hesitate to use them to your advantage. We believe that there you can reach even higher wins.

HAMMER OF THUNDER Video REVIEW

✅ Try this slot for free on our website - https://slotsjudge.com/online-slots/hammer-of-thunder/ Hi everyone! In this video we’ll show you bonus game in Hammer of Thunder from Spadegaming. The slot machine has average volatility and RTP of 96.9%. The playing field consists of 6 reels and 6 rows, the minimum bet starts with $0.20, and the maximum bet reaches $100. By the way, the maximum winnings are 285x of the bet size.The main features of the machine are Free spins, Scatter Symbol, Wild symbol, Write in the comments, have you played Hammer of Thunder from Spadegaming and how do you like the winnings presented in this video! No links used during live stream or in the description are transaction links. 18+ | Play Responsibly | Begambleaware.org. #slots #onlinecasino #bigwin

Overall Rating

7.5
If you’re a fan of historical or mythological slot machines with eye-catching visuals, Hammer of Thunder is a perfect option for you. The RTP, volatility, payouts, and bonus features of this slot hint that the game should be much more profitable compared to other games with a similar concept. Is it really true, though? Well, there is no other way to check than to play Hammer of Thunder yourself and test all its features right now. Perhaps, you will become the gods’ favourite?
Hits
Cascading Reels feature
Free spins
Sticky Wilds & Respins
Bet multipliers
Misses
No progressive jackpot
Small max win

Hammer of Thunder Slot - FAQ

Do I need to make a deposit to play this game?

Yes, you will need to deposit money if you play in a casino.

Does Hammer of Thunder have a progressive jackpot?

Unfortunately, Hammer of Thunder is not a progressive slot machine.

What is the Return to Player (RTP) rate of Hammer of Thunder?

The RTP of Hammer of Thunder is 96.89%.

What bonus features are available in Hammer of Thunder?

The slot offers such bonuses as Hammer of Thunder (sticky symbols), Respins, Cascading Reels, and Free Spins.

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Fabio Duarte
Fabio Duarte
Expert in: News, Blog, Slot reviews, Payments
Fabio is a young writer with +6 years of experience in gambling & betting. Fabio creates professional reviews of casino and slots. Every single article Fabio made exhibits deep analytical skill and comprehensive coverage of a topic. It’s Fabio – one of the leading authors on slotsjudge.com.

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Reviewed by Editor-in-Chief
Nikita Lukanenoks
Rate this article and leave a comment

Overall rating

Based on 1 reviews

5/10
Gonzita_is_here own avatar
Gonzita_is_here
6 lvl Superstar
5
Winning: €3
Multiplier: x14
What can I say, the Spadegaming provider was clearly inspired by the popular Gates of Olympus slot, but something went wrong =) I played for €0.20 and the cascade mechanics were not particularly generous with me. The highest win per spin I've ever had was €2.74 (13.7x). Well, I'm not that happy, though I can’t say that this slot is completely ‘empty’. Perhaps, other players will be luckier here…
Review image 2467-0
07.06.2023
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