Thunderstruck II Mobile Image Slot Review

Thunderstruck II


Immerse yourself in the world of Norse mythology with Microgaming’s smash-hit sequel, Thunderstruck II. Released in 2010, fans of the original were keen to see if its successor, seven years on, could match up or improve on what was already a huge success among slot lovers.


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Thunderstruck II Slot Details

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Thunderstruck II Advantages And Disadvantages

  • High RTP rate Thumbs Up
  • Doubling wilds Thumbs Up
  • 243 ways to win Thumbs Up
  • Paying scatters and wilds Thumbs Up
  • Medium volatility Thumbs Down
  • Narrow stake margins Thumbs Down
  • No progressive jackpot Thumbs Down


Thunderstruck II Slot Review

Thunderstruck II most certainly did not disappoint. In fact, Thunderstruck II proved to be an even bigger success, knocking its prequel off the top spot with its multiple bonus features, which include four free spins features, an improved Return to Player (RTP) of 96.65%, increased paylines from nine to 243 ways to win, and a stunning max win of 8,000x.

Our Thunderstruck II slot review will be delving into the game mechanics, highlighting the main bonus features, looking at the pros and cons, checking out the symbols and their values, showing you how to play and where to play the Thunderstruck II casino game, and sharing our thoughts on the slot machine strategy and tips.

Thunderstruck II Slot Machine Features

Thunderstruck II slot is yet another imaginative creation from Microgaming, one of the leading online gambling experts in software. Microgaming has been responsible for supplying worldwide online gaming operators with diverse and exciting games content since 1994.

This award-winning developer is responsible for creating the world’s first online casino software in 1994, followed by the first mobile casino software a decade later, in 2004. Thunderstruck II is yet another innovative addition to its long list of amazing slots and online casino games.

Thunderstruck II slot immerses players into the world of Norse mythology with fast gameplay, dramatic sound effects, and phenomenal graphics. Whereas the original Thunderstruck portrayed the visuals in a comic book fashion, its successor has gone for a more lifelike and interactive feel.

To play Thunderstruck II, players are faced with a standard five reels by three rows layout that offers an amazing 243 ways to win. Navigation around the slot is simplistic and self-explanatory. The paytable offers all the information necessary to experience the game to its full potential.

The Paytable Achievements feature enables players to unlock features following the completion of all payouts for the respective symbol. The paytable lights up in gold and players can keep track of their winning achievements.

The Thunderstruck II slot RTP sits nicely at 96.65%, indicating a high return, and the volatility can be classed as medium, providing for well-rounded gameplay with steady payouts of small to medium size in between those occasional big wins.

When you play Thunderstruck II, there are several bonus features to look out for. We will delve deeper into these a little later on in the review, but for now, we’ll give you a taste of what’s to come – doubling wilds, Thor’s Wildstorm Feature, paying scatters and wilds, multipliers, rolling reels, and the Great Hall of Spins.

Thunderstruck II Slot Machine Gameplay And Symbols

Here’s a quick guide on how to play Thunderstruck II:

  1. Check the game rules and paytable information
  2. Enter Settings to toggle sound and quick spin on/off
  3. Click on the Coins icon to set the stake per spin from 0.30 to 60.00
  4. Set Autoplay up to 100 automated spins (optional)
  5. Hit ‘Spin’

On the reels of Thunderstruck II, players will encounter the following symbols: Thor – God of Thunder, Odin – God of Death and War, Loki – Trickster God, Valkyrie – Chooser of the Slain, Mjolnir – Thor’s Hammer, Bifrost to Asgard – the rainbow bridge to the home of the gods, a Nordic Ship, card royals, 10 and 9.

Thunderstruck II Slot Machine Strategy

Now, let’s take a look at a snapshot of the game rules for Thunderstruck II:

  • Only highest win paid per way
  • Way wins begin with the left reel
  • Scatters pay from any position on the reels
  • All 243 ways to win are permanently enabled
  • Free spins cannot be triggered during Wildstorm Feature
  • Paytable displays the number of credits won for each combination
  • Malfunction voids all pays and plays

There are 243 ways to win on the Thunderstruck II slot. By matching three or more symbols on adjacent reels, players are rewarded. These wins are awarded from left to right, beginning with the leftmost reel, and only the highest win is paid per way.

The wild symbol is represented by the Thunderstruck ll slot logo and substitutes for all other symbols except the scatters. Any win involving the wild will be doubled. Players will also be awarded a payout should they land three or more, up to 2,000 coins for landing five on the reels.

The scatters are represented by Thor’s hammer, Mjolnir, which also pays out up to 12,000 coins when players land it two times or more on the reels. The scatters are the key to gaining entry to the Great Hall of Spins, where players can unlock up to four free spins bonus features.

The highest-paying base symbol is Thor, awarding payouts of up to 1,000 coins for landing five on adjacent reels. The lower-paying symbols, card royals, 10 and 9, reach a max of 300 coins for landing five Aces and Kings across the reels. It is from the Wildstorm Feature and Great Hall of Spins that players will encounter the highest payouts, up to 8,000x stake.

Thunderstruck II Slot Bonuses

Now, we’ll take a closer look at the incredible bonuses on offer when you play Thunderstruck II.

Wildstorm Feature – The Wildstorm Feature strikes at random during base gameplay and can turn up to five reels wild, creating even more winning combinations. The first warning of this feature being triggered is the sound of thunder. Stormy clouds then begin to gather above the reels, and Thor leaps onto the grid in a burst of lightning.

Thor strikes the reels with his mighty hammer and then disappears back into the storm clouds, using his magical powers to turn up to five reels wild. During the Wildstorm Feature, players will not be able to trigger the free spins, but they will have the chance for some awesome payouts.

Great Hall of Spins – Landing three or more scatters on the Thunderstruck II base game slot reels will trigger entry into the Great Hall of Spins, where players will find four free spins bonus features offered by Valkyrie, Loki, Odin, and Thor, which sequentially unlock the following multiple entries to the Great Hall:

Valkyrie – This bonus is available from the first trigger. During the feature, the free spins can be retriggered. Valkyrie awards 10 free spins with a 5x win multiplier.

Loki – This bonus is available from the fifth trigger. Loki awards 15 free spins with the Wild Magic Feature. Wild Magic symbols only appear on reel three. When they land, up to 15 symbols can be randomly transformed into Wild Magic symbols. Furthermore, landing two, three, four, or five scatters will retrigger one, two, three or four free spins, respectively.

Odin – This bonus is available from the 10th trigger. Odin awards 20 free spins with the Wild Raven Feature. Odin’s ravens will randomly transform up to two symbols wild. These wilds will then apply a 2x or 3x win multiplier when substituting for other symbols. If both of Odin’s ravens land, a 6x win multiplier can be awarded.

Thor – This bonus is available from the 15th trigger. Thor awards 25 free spins with Rolling Reels. In this feature, winning symbols are removed to make way for new symbols to drop down for more winning combinations during one spin. Rolling reels can award multiple consecutive wins. As the rolls progress, a win multiplier will increase – Roll 1: 1x, Roll 2: 2x, Roll 3: 3x, Roll 4: 4x, Roll 5+: 5x.

Tips For Playing Thunderstruck II Slot

When it comes to top tips on how to play Thunderstruck II, we have a few:

  • Always practice for free on the Thunderstruck II demo
  • Make sure that you register with a reputable online casino (check out our list)
  • Browse the game rules and paytable information before playing
  • Ensure that you have a secure internet connection when playing from a mobile device


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Thunderstruck II Sweepstakes Slot

Image for Thunderstruck 2

Published on 19 Jun, 2024

We would always recommend that you play Thunderstruck II casino game for free as it enables you to familiarize yourself with the gameplay, the symbols and their values, and the slot’s volatility and expected return rate. Also, you can test out the various stake levels.


When it’s a game like Thunderstruck II with multiple bonus features, playing for free gives players a chance to experience all of the bonuses in their full glory, without losing a dime. Players can refresh their credits as often as they like and play for endless hours at a time, risk-free.


As the slot is fully optimized, players are able to play Thunderstruck II from their mobile devices. Whether it’s a smartphone or tablet, the game will adapt to any size screen, with no compromise to graphics, sound, or smooth gameplay.


Thunderstruck II slot can be played through most operating systems, including iOS and Android. As most online casinos now offer fully optimized mobile platforms, players will be able to launch the game direct from their web browser, enabling instant play. However, there are still a few casinos that will need players to download their dedicated app before they can enjoy the pleasures of mobile play.

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Online Games Expert

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Thunderstruck II Slot FAQ

There are four free spins bonus features in the Great Hall of Spins. These can be accessed by landing three or more scatters on the Thunderstruck II slot reels and sequentially unlocking the bonuses following multiple entries to the Great Hall.

The main character is Thor – God of Thunder, who is joined on the reels of Thunderstruck II slot machine by Odin, Loki, and Valkyrie.

By matching three or more symbols on adjacent reels across the 243 ways to win, you will achieve a payout. Add into the mix wilds that substitute for other symbols and double every win they’re involved in, scatters that gain entry to the Great Hall of Spins, and a randomly activated Wildstorm Feature.

Yes, absolutely! Many online casinos offer the chance to play Thunderstruck II for free. This is the best way to test out the slot and familiarize yourself with the gameplay. You can experience all of the bonus features and check out the RTP and volatility rates, all risk-free.

No, Thunderstruck II doesn’t have a progressive jackpot. However, it does offer a Wildstorm Feature and multiple free spins bonus features where you can win up to 8,000x the stake.

Yes. If you enjoy Thunderstruck II, you may wish to play its prequel, Thunderstruck. Alternatively, why not check out Microgaming’s Immortal Romance? This game has a theme of romance and vampirism that offers immersive gameplay, 243 ways to win, multiple free spins bonus features, and up to 12,150x the stake.

You can play Thunderstruck II for free at many of the online casinos. As most sites are fully optimized, players can launch directly from their web browser for instant play. However, some casinos will still require players to download their free dedicated mobile app.

Jonathan Hill - Author at

Jonathan Hill


Online Games Expert

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Hey there! My name is Jonathan and I’m the review author and lead content editor for I’ve been knee-deep in the world of social casinos for quite a while, uncovering hidden gems and sharing my expertise with fellow enthusiasts.



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