Thunderstruck II Slot Demo

Thunderstruck II slot is a sequel to the most popular Thunderstruck slot game, released on 1 May 2004. However, Stormcraft Studios remastered the sequel in December 2020. Thunderstruck II slot demo and real play games deliver three rows, five reels, and 243 paylines. Its theme and graphics are inspired by Norse mythology, one of the most popular styles used in the industry. What’s more, this slot machine’s main attraction is the Great Hall of Spins bonus, which can award up to 25 Free Spins that you can test for free on our site. You can find out more details about the game and tips to play online in this review.

Thunderstruck II Features Overview

ThemeViking

TypeOnline Video Slots

SoftwareMicrogaming , Stormcraft Studios

Reels5

Maximum win8,000x Stake

Paylines243

Min coins per spin0.30

Max coins per spin54.00

Release date1 May 2014

Special featuresWildstorm Feature, 4 Free Spins Features

RTP96.65%

Slot varianceHIGH

MobilePortrait and Landscape Screen Layout

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Checked September 2026 · offers in Canadian dollars

FilterC$4,000+ packageCrypto cashier200+ free spins

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Show all 11 casinos

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On this page

1. Thunderstruck II Slots In-Play Features
2. RTP and Variance of the Thunderstruck II by Microgaming
3. Conclusion

Thunderstruck II Slots In-Play Features

Since this is a remaster of the original Thunderstruck game, you can expect it to come with enhanced graphics and updated bonus features. Such extras that are in the free Thunderstruck II demo are as below:

• Wild. The game’s logo is the Wild symbol. It acts as a substitute icon whereby it replaces regular symbols except for the Scatter. Moreover, it doubles the wins while substituting.
• WildStorm Feature. This feature can appear randomly during your gameplay and convert up to 5 reels Wild. Note that the Free Spins are not active during the Wildstorm feature.
• The Great Hall of Spins. Thor’s hammer plays as the Scatter symbol in the Thunderstruck II mobile slot. Three or more of these symbols on any position on the reels will initiate The Great Hall of Spins feature. The feature encompasses four Free Spins, which you can trigger at different turns.

Free Spins Variations

• Valkyrie Free Spins. It is accessible on the first trigger and comes with 10 Free Spins plus a 5x multiplier. The best part is that you can retrigger these Free Spins.
• Loki Free Spins. Available on the 5th trigger, the Loki Free Spins will award up to 15 Free Spins and the Wild Magic feature. During the latter, the engine will add wild magic symbols to the 3rd reel. Up to 15 symbols will then transform into the Wild magic icons when these features sets in motion. What’s more, 2 to 5 Scatter symbols will activate 1 to 4 Free Spins.
• Odin Free Spins. This bonus is applicable during the 10th trigger. It delivers 20 Free Spins and the Wild Raven feature. When the latter happens, Odin’s ravens will transform 1 or 2 symbols into Wild. Furthermore, the feature will come with 2x or 3x multipliers and up to 6x multiplier when both ravens land.
• Thor Free Spins. Available on the 15th trigger, Thor Free Spins are the best feature in the game. It awards up to 20 Free Spins and the rolling reels feature. Whenever a winning combination occurs, the winning symbols will be removed to make room for new symbols. This event creates better chances of landing the big win. Moreover, bear in mind that this feature comes with a multiplier trail, which will increase up to 5x multiplier for the 5th roll.

RTP and Variance of the Thunderstruck II by Microgaming

Thunderstruck II free slot and cash modes come with a 96.65% RTP and high volatility. This rate is very different from what the original game offered but much better. Besides, the maximum win is 8,000 times the bet.

Conclusion

If you love Norse mythology-themed slots, then you should play Thunderstruck II for free or real money. The game is all about the Great Hall of Free Spins, which is the pathway to big wins. On top of this, this slot is mobile compatible, and no download is required to play on mobile devices.