Thunderstruck II





Our expert rating

Jack Ryder

Casino freeloader

Apr 11, 2024

Last edited



Thunderstruck II Overview

Leading industry expert Microgaming has come up with another blockbusting gem in this 2010 release, Thunderstruck II. The Norse mythology theme was and still is a huge hit with players, helping to keep it at the top of our free slot demo charts – even nearly 15 years after its first release! This Thunderstruck II review will delve a little deeper into the immersive gameplay, specifications and bonus features available.

Players will encounter four Nordic Gods on the reels, Valkyrie, Loki, Odin and Thor, alongside Thor’s home, a Nordic ship symbol, card royals, 10 and 9. Thor’s hammer is the scatter and the game logo represents the wild.

Thunderstruck II Specifications

Set on a 5 reels by 3 rows slot layout, Thunderstruck II features 243 paylines. By matching three or more symbols on adjacent reels across these paylines, players are awarded a win. For scatters, players only need to match a minimum of two. Wins are paid from left to right, while scatters pay from any position.

The wild substitutes for all other symbols except the scatters and wins are doubled whenever the substituting wild forms part of the winning combination. The bet range is quite small, with the maximum bet resting at 60.00 per spin. There is, however, the potential to win 8,000x total bet, equating to 480,000.

The Thunderstruck II RTP is 96.65%, which is a decent theoretical percentage predicting the potential payout to players over an extended time period. This Thunderstruck II review discovered that volatility is also high for the slot, which theoretically indicates with a little patience, increased win pots will be awarded.

Title Thunderstruck II
Developer Microgaming
Reels 5
Rows 3
Paylines 243
RTP 96.65%
Max Win 8,000x
Min Bet 0.30
Max Bet 60
Volatility High (5/5)
Original Release Date 05/05/10
Remastered 10/12/2020

Thunderstruck II Bonuses and Features

A Wildstorm feature occurs at random during the base game, turning up to five reels wild. Land three or more scatters to gain entry to The Great Hall of Spins, where the bonus rounds are sequentially unlocked upon multiple entries to the Great Hall, as follows:

Valkyrie 10 free spins, 5x win multiplier for every award, free spins can be retriggered, available from the first trigger
Loki 15 free spins with Wild Magic feature: when the Wild Magic symbol appears on reel 3, up to 15 symbols randomly transform into wilds. 2, 3, 4, 5 scatters will retrigger 1, 2, 3, 4, free spins, respectively. Available from 5th trigger
Odin 20 free spins with Wild Raven feature: transforming symbols into wilds with 2x or 3x win multiplier, landing both ravens awards 6x multiplier, available from 10th trigger
Thor 25 free spins with rolling reels: can award consecutive wins, win multiplier will increase on each consecutive roll up to 5x, available from 15th trigger


Thunderstruck II review found that this Nordic adventure has plenty of bonus features to keep players entertained for hours, rewards can prove lucrative and coupled with a high Thunderstruck II RTP and volatility rate, its understandable why players return time and again to play this legendary slot.

Jack Ryder

Casino freeloader


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