slot machines

Thunderstruck II

Thunderstruck II

Thunderstruck II (Games Global, originally Microgaming): 5x3 slot with 243 ways, 96.65% RTP, medium volatility, Great Hall of Spins and Wild Storm.

Thunderstruck II (Games Global, originally Microgaming): 5x3 slot with 243 ways, 96.65% RTP, medium volatility, Great Hall of Spins and Wild Storm.

Thunderstruck II - cover

Thunderstruck II

Thunderstruck II

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Thunderstruck II is a slot game from the Games Global catalogue, with a historical origin in Microgaming. It is a classic of the Thunderstruck series: a 5x3 grid, 243 ways, a verified RTP of 96.65% and a volatility listed as Medium in the technical data consulted.

The game remains well-known for its Great Hall of Spins, its four free spins modes linked to Valkyrie, Loki, Odin and Thor, and its random Wild Storm bonus. It should therefore be viewed as an older progressive bonus slot, rather than a modern feature buy release.



Thunderstruck II - vue du jeu

What the sources show

Svenska Spel lists the game under Games Global with an RTP of 96.65% and 243 lines/ways. The Microgaming help file details the 243 ways, the wild multiplier symbol, the scatters and the Great Hall of Spins. GMBLRS corroborates the release date of 2010-05-05, the 5 reels / 3 rows layout, Medium volatility and an announced potential of 8100x.

Criterion

Verified information

Catalogue provider

Games Global

Product origin

Microgaming

Release date

2010-05-05

Layout

5x3, 243 ways

RTP

96.65%

Volatility

Medium

Bet levels

0.30 to 15.00 according to GMBLRS

Verified potential

8100x

Key features

Great Hall of Spins, Valkyrie, Loki, Odin, Thor bonuses, Wild Storm

Great Hall of Spins

The main bonus is triggered by 3 or more scatters. The game then grants access to the Great Hall of Spins, which acts as a progression between four modes. Valkyrie is available from the start with 10 free spins and a 5x multiplier. Loki is unlocked after several activations and adds wild transformations on reel 3.

Odin brings 20 free spins with the Wild Raven feature, which can turn symbols into multipliers. Thor is the most advanced mode: 25 free spins, Rolling Reels and a progressive multiplier up to 5x. This progression explains why Thunderstruck II holds a special place in the series.



Thunderstruck II - Wild Storm

Wild Storm

Wild Storm can trigger randomly during the base game. Up to 5 reels can turn wild, which radically changes the value of a spin. It is an old feature, but it remains the game's real highlight because it can transform an ordinary grid into a much more valuable spin.

Points of caution

Thunderstruck II does not have the pace of a modern slot. It can feel quiet between bonus triggers, especially if progress through the Great Hall is slow. Its volatility is listed as medium, but the real interest remains concentrated on Wild Storm and the free spins modes.

The verified RTP is 96.65%. Before playing for real money, you should still open the casino's information screen: some operators may offer a different RTP variant, betting limits or availability depending on the market.

Our quick opinion

Thunderstruck II is worth playing primarily for its status as a classic. The 243 ways remain simple to understand, the four bonuses provide a real structure, and Wild Storm still holds great promise. On the other hand, players looking for a highly modern, fast-paced or feature-buy-oriented slot will probably prefer the more recent sequels.

To stay within the saga, compare it with Thunderstruck Stormchaser and Thunderstruck Wild Lightning. For another Games Global title already released, take a look at Treasure Tracks. The slot machines page allows you to browse other games, while our best online casinos page helps put the choice of game in the context of choosing a casino.

Frequently Asked Questions

Frequently Asked Questions

Frequently Asked Questions

Who created Thunderstruck II?

Who created Thunderstruck II?

Who created Thunderstruck II?

What is the RTP of Thunderstruck II?

What is the RTP of Thunderstruck II?

What is the RTP of Thunderstruck II?

What are the main functions?

What are the main functions?

What are the main functions?

Published on

Published on

3

minute

Supplier

Supplier

Games Global

Games Global

Year of creation

Year of creation

2010

2010

RTP

RTP

96.65%

96.65%

Volatility

Volatility

Medium

Medium

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RESPONSIBLE GAMING: We are not responsible for losses incurred through gambling in casinos or betting on betting sites related to any of our bonus offers. The player is responsible for the amount they are willing and able to play. Do not bet or gamble with money that you cannot afford to lose. Do not chase your losses. Players have a responsibility to check the gambling laws in their country or jurisdiction, and they must do so before wagering money on any online gambling site.


DISCLAIMER: Offers on our site are subject to change or cancellation. We always recommend that players review the terms and check the bonus directly on the casino/betting company’s website.


18 years and over, for new customers only, T&C Apply, gamble responsibly www.begambleaware.org

2026 Copyright © 8fortuna.com, All rights reserved.

RESPONSIBLE GAMING: We are not responsible for losses incurred through gambling in casinos or betting on betting sites related to any of our bonus offers. The player is responsible for the amount they are willing and able to play. Do not bet or gamble with money that you cannot afford to lose. Do not chase your losses. Players have a responsibility to check the gambling laws in their country or jurisdiction, and they must do so before wagering money on any online gambling site.


DISCLAIMER: Offers on our site are subject to change or cancellation. We always recommend that players review the terms and check the bonus directly on the casino/betting company’s website.


18 years and over, for new customers only, T&C Apply, gamble responsibly www.begambleaware.org

2026 Copyright © 8fortuna.com, All rights reserved.