Thunderstruck 2 Slot Review

Expert Rating: 4.5 out of 5
Review by Chris Taylor
Last update 20th October 2021
Review by Chris Taylor
Last update 20th October 2021

The Thunderstruck 2 slot is one of the most popular online slots of all time. Released in 2010 by Microgaming, this 5 reel, 243 ways to win game has a Norse mythology theme and is playable from 30p a spin on all devices. There’s a randomly-activated Wildstorm feature where up to 5 reels can turn fully wild. It’s all about The Great Hall of Spins where you can play 4 free spins features based on Thor, Odin, Loki and Valkyrie. They offer you 5x multipliers, random wilds, multipliers up to 6x and Rolling Reels with increasing multipliers up to 5x. With a 96.65% RTP, there are max wins of 8,000 x stake on each Loki free spin. Find out more in our Thunderstruck 2 review.

Thunderstruck 2 Max Win
8,000 x bet
Type of Slot
Video Slot
Norse Mythology
Stakes Range
30p to £15
Bonus Features
Yes (8)
Free Spins/Multiplier
Max Win
8,000 x

Thunderstruck 2 Demo

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Thunderstruck 2 Slot, Details & Wager Limits

Reels/Paylines: 5 reels + 243 ways to win

Stakes Range: 30p to £15 per spin

Max Win: 8,000 x stake per spin

The Thunderstruck 2 slot comes with 5 reels, 3 rows and 243 ways to win. To form a winning combination, you need to land 3, 4 or 5 matching symbols on successive reels beginning from the first reel. For example, get Thor on reels 1, 2 and 3 in any position.

The stakes suit all pockets as you can play Thunderstruck 2 from as little as 30p to as much as £15 per spin. There is a very basic Auto Play function where you can choose from 10, 25, 50 or 100 autospins. In the Settings section, there’s also a Quick Spin option.

The variance is high meaning you will get plenty of smaller sizes wins with the occasional big win, if at all. The hit frequency is 32.62% meaning that nearly 1 in 3 spins will result in a winning combination.

When you trigger the random Wildstorm feature, it will normally consists of 1 or 2 wild reels. The bigger wins come from the free spins features but will be infrequent. The max win per free spin is 8,000 x your stake. This can be achieved on each free spin in the Loki Free Spins feature or the Wildstorm feature.

Thunderstruck 2 RTP

RTP: 96.65%

The Thunderstruck 2 RTP is 96.65%. This is high for an online slot. You’ll get back £96.65 for every £100 you stake on average. Being a high variance game, you should get plenty of small wins frequently which will stretch out your balance.

Theme – Audio and Design Features – head to the realm of Asgard

Theme: Norse Mythology

High Value Symbol: Thunderstruck 2 wild

Compatibility: Mobile, Tablet, Desktop


With a Norse mythology theme, Thunderstruck 2 focuses on the Norse God of Thunder (Thor). You join Thor on his journey with other ancient Norse gods in the realm of Asgard. With an epic soundtrack playing as you spin the reels, the graphics and animations are actually high definition.

Despite being originally released in May 2010, developer Microgaming has remastered the game with the latest version available from the 10th of December 2020. The new version has enhanced sounds and animations and a modernised layout.

Symbols on the reels include A, K, Q, J, 10 and 9 playing cards as well as viking longships. You’ll also come across Nordic gods Valhalla, Valkyrie, Loki, Odin and Thor. Thor is the most rewarding standard symbol giving you 16.67 times your total stake for 5 in combination.

The Thunderstruck 2 logo is the wild symbol and substitutes for all other symbols bar Thor’s Hammer (which is the scatter). When part of a win, it doubles your payout. 5 wilds on a payline will give you 33.33 times your stake. If you were to get 4 Thor symbols and a wild, you’d also win 33.33 times your stake. You will form wins by getting matching symbols from left to right. Here’s a table of the payouts for the top symbols:

Symbol Payouts
thunderstruck-2-slot-viking-longship-symbolViking Longship 3, 4 or 5 = 0.5, 1.66 or 8.33 x stake
thunderstruck-2-slot-valhalla-symbolValhalla 3, 4 or 5 = 0.5, 1.66 or 10 x stake
thunderstruck-2-slot-valkyrie-symbolValkyrie 3, 4 or 5 = 0.66, 2.66 or 11.66 x stake
thunderstruck-2-slot-loki-symbolLoki 3, 4 or 5 = 0.66, 2.66 or 13.33 x stake
thunderstruck-2-slot-odin-symbolOdin 3, 4 or 5 = 1, 3.33 or 15 x stake
thunderstruck-2-slot-thor-symbolThor 3, 4 or 5 = 1, 3.33 or 16.66 x stake
thunderstruck-2-slot-wild-symbolWild 3, 4 or 5 = 2.5, 6.66 or 33.33 x stake
thunderstruck-2-slot-thor-hammer-scatter-symbolScatter 2, 3, 4 or 5 = 1, 2, 20 or 200 x stake

Thunderstruck 2 Mobile


There is a Thunderstruck 2 mobile slot as well as a desktop and tablet version. Being 1 of Microgaming’s most popular slots ever, it can be played on Windows, iOS and Android operated devices. With the game being remastered, there’s a fully optimised portrait mode now available.

Thunderstruck 2 Bonus Features

The Thunderstruck 2 slot has a wealth of bonus features with 8 in total. There are random wild reels as well as 4 free spins features which are based on mythological characters Valkyrie, Loki, Odin and Thor. Each of them offers their own features such as multipliers, transforming symbols and rolling reels.

Wildstorm feature


The Thunderstruck 2 casino slot comes with a randomly triggered Wildstorm feature. Once activated, Thor will use lightning bolts to transform between 1 and 5 reels into wild reels. If you manage to get 5 wild reels, you would win 8,000 times your total stake.

The Great Hall of Spins features


Thunderstruck 2 is all about The Great Hall of Spins features. This is accessed by getting 3, 4 or 5 Thor’s Hammer scatters. 2, 3, 4 or 5 scatters anywhere in view will give you 1, 2, 20 or 200 times your total stake by the way. This is a multi-level free spins feature.

With 4 on offer, you can access various features once you trigger The Great Hall of Spins a certain number of times. There is a progress bar to show you how many times you’ve entered it. Here’s what to expect:

Valkyrie Free Spins feature: this is available from the 1st trigger and gives you 10 free spins with a 5x multiplier. The good thing is that you can retrigger more free spins to give you 20 free spins in total. The max win per free spin is 1,383 x your stake.

Loki Free Spins feature: this is available from the 5th trigger and gives you 15 free spins. It benefits from the Wild Magic feature. Look out for Wild Magic symbols on reel 3 as this randomly transforms symbols into extra wilds. You can also win 1, 2, 3 or 4 more free spins for 2, 3, 4 or 5 scatters. The max win per free spin is 8,000 x your stake.

Odin Free Spins feature: this is available from the 10th trigger and rewards you with 20 free spins. The Wild Raven feature comes into play as Odin’s Raven symbols can randomly turn symbols into 2x and 3x multipliers. If both ravens land, you’ll benefit from a 6x multiplier. This can lead to 3,320 x stake wins per free spin.

Thor Free Spins feature: this is available once you enter The Great of Hall of Spins 15 times. You’ll get 25 free spins with the Rolling Reels feature. When you get a winning combination, the multiplier increases to 2x. Subsequent wins will increase the multiplier up to 3x, 4x and finally 5x. The max win per free spin is 1,383 x stake.

Thunderstruck 2 Review Summary – iconic online slot

Theme & Symbols

Sounds & Music

Bonus Features

RTP (96.65%)

Max Win (8,000 x)


The Thunderstruck 2 slot may be old but it’s still much-loved by slots and casino players. It’s all about The Great Hall of Spins as you can access the 4 free spins features. Once you’ve triggered it 15 or more times, you can opt for any free spins feature you fancy.

The Loki Free Spins feature is the best one as it offers the biggest win potential, up to 8,000 x stake on every free spin. The random Wildstorm feature can also deliver the same payouts.

Thunderstruck 2 may be old but it’s still 1 of the best online slots ever. Due to it’s overwhelming popularity, a Thunderstruck Wild Lightning slot will be released in 2021.

A similar slot in terms of gameplay is Immortal Romance which has a vampire theme but uses the same game engine. It’s more volatile though with wins of up to 12,150 times your stake on every free spin in the Troy feature.

  • 1 of Microgaming's most loved slots
  • High RTP rate of 96.65%
  • Provided the platform for Immortal Romance
  • Graphics a little dated

Thunderstruck 2 Casinos

Being 1 of Microgaming’s flagship games, there are lots of Thunderstruck 2 casinos to choose from. With 100s of casino and slot sites to play at, it will be rather odd if a casino doesn’t offer this iconic game. There are normally Thunderstruck 2 free spins offers too from a lot of them.

Thunderstruck 2 FAQs

What is the Thunderstruck 2 RTP?

The Thunderstruck 2 RTP is 96.65%. This is actually high for an online slot game. For every £100 you play, you’ll in theory win back £96.65. It’s a high variance game with a hit frequency of 32.62%.

What is the Thunderstruck 2 max win?

The most you can win from a spin is 8,000 x your total stake. This can be achieved in 2 ways: via the random Wildstorm feature or from a free spin in the Loki Free Spins feature. There are also high win amounts from the other free spins features.

Are there any Thunderstruck 2 free spins?

Yes. It comes with 4 free spins features which are chosen from The Great Hall of Spins. Based on gods Thor, Loki, Odin and Valkyrie, each of them has their own number of free spins and modifier including rolling reels with increasing multipliers, 5x multipliers, multipliers up to 6x and extra wilds.

Is there a Thunderstruck 2 demo?

Yes. You can play Thunderstruck 2 free here at The game is available to play on desktop, mobile and tablet devices. The latest version has been remastered to include a mobile portrait mode.