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Thunderstruck II Review

Slot Information:

Game  Thunderstruck II
Software  Microgaming
Type  Video Slot
Reels  5
Paylines  243
Total coins  30
Coin range  0.30-15.00
Jackpot  1000
Bonus round  Yes (8)
Free spins/multiplier  10-25/1-6x

Since its release by Microgaming in 2010, Thunderstruck II is one of the most loved and played slots of all time. In addition to having a unique Norse mythology theme, the game has plenty of bonuses, including the Wildstorm feature where up to 5 of the reels can become wild.


This game’s Norse theme is all about the Nordic gods like Valkyrie, Loki, Thor, and Odin. The soundtrack has an epic feel to it that adequately represents the theme. The graphics may be a little behind, but this is probably the case as it was designed and released in 2010, which may help add a valuable, nostalgic component. Some of the symbols you can expect on the reels are the typical playing card symbols (9-A) and Viking longships, gods Valkyrie, Loki, Odin, Valhalla, and Thor.

How to play Thunderstruck II

The game is available to play on both PC and mobile devices for 30p-£15 per spin.

Symbols and Bonuses to look out for:

Thor is the most valuable base game symbol, as he is worth a 16.67x multiplier on your total stake. The Thunderstruck II game logo is the wild symbol to anticipate, and substitutes for all symbols except for Thor’s hammer, which is the scatter. If the wild is part of a winning combination, it doubles the associated win. Also, landing five of these on your reels awards you 33.33 times your total stake, and so does getting four Thor symbols plus a wild.

The Wildstorm feature in this game is one of the fun aspects of this game, as it is randomly triggered. This feature transforms up to five of your reels into entire wilds, which can give up to 1000x your stake.

However, the great hall of spins is the most exciting bonus in this game. This feature is activated when 3, 4, or 5 of Thor’s hammers appear on the reels, where you can get a 1x, 2x, 10x or 200x times your entire stake. This feature also comes with 4 free spins features, which are accessible based on the number of times you have been to the Great Hall of Spins. The progress bar will help you keep track of the number of times you have activated the Great Hall of Spins feature.

  • Valkyrie feature: Comes with 10 free spins, and a 5x multiplier. This feature is available for all players, and you can retrigger the free spins.
  • Loki Feature: this feature is available for players that have been to the Great Hall of Spins at least five times. It offers 15 free spins and an active Wild Magic feature where the wild magic symbol on reel three transforms random symbols into wilds. Landing 2, 3, 4, or 5 scatter symbols also assure you of 1, 2, 3, or 4 additional free spins.
  • Odin feature: This feature is available for players who have triggered the feature at least 10 times. It comes with 20 free spins plus an active Wild Raven feature. Here, Odin’s ravens transform random symbols into 2x and 3x multipliers, and if you land two ravens, then you get a 6x multiplier.
  • Thor feature: This feature is accessible if you have triggered the Great Hall of Spins feature at least fifteen times, and comes with 25 free spins with an active Rolling Reels feature. In this option, landing a winning combination increases the multiplier value to 2x, and more combinations can increase the multiplier up to 5x.

This game is mid-variance, and the most significant wins will come from the Loki and Wildstorm feature. The opportunity to make over 8100x your total stake may be one of the reasons this 9-year-old slot is still loved.