Thunderstruck II Online Pokie Review

Thunderstruck was hailed as a cult classic, but when news of a sequel was announced, many were concerned that the game would not measure up to the original. However, their trepidation was unwarranted as Thunderstruck II barrelled its way to the number one spot thanks to its fantastic visuals, majestic extra features and out-of-this-world gameplay.

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Best Casino to play Thunderstruck Ii Online

Software Microgaming (Games Global)
Slot Type Video Slot
Winning Lines 243
Reels 5
Rows 3
Min Bet $0.01
Max Bet $1
Jackpot 8,000x
RTP 96.65%
Volatility High

Expert's Verdict for Thunderstruck II

The Verdict

Thunderstruck II masterfully combines Norse mythology with its innovative gameplay features. Its 243-Ways-to-Win and a variety of bonus rounds provide both entertainment and substantial winning potential. With the ability to unlock more free spins, and the thrilling Wildstorm feature, this game is designed to keep you engaged and rewarded. Its jackpot of 8000x the stake is a lofty target that adds an extra thrill to the gameplay.

Overall Rating
  • All wild wins Are double
  • Wildstorm Feature
  • Progressive Free Spins Feature
  • High Win Potential
  • High Volatility
  • Excessive Play Needed to Unlock All Free Spin Rounds

Thunderstruck II Design And Graphics

Thunderstruck II by Microgaming still predominantly revolves around Thor, the mighty Norse god of thunder, and his epic journey through the legendary realm of Asgard. However, several mythological figures, including the ever-popular Loki, also appear in Thunderstruck II.


ThunderStruck II is an updated sequel that is clearly influenced by Immortal Romance. The game has far superior graphics and sounds than the original. The ethereal background track with distant thunder perfectly sets the theme, and similar to Immortal Romance, the bonus rounds have their own unique soundtrack.


While the graphics and animation of this game are clearly improved from the original, they are still a step beneath many other games in the Microgaming portfolio. However, the features of this game are the main draw, just like Immortal Romance.  You can try it out at real money casinos.

Thunderstruck II Gameplay
Thunderstruck II Gameplay 4
Thunderstruck II Gameplay 3
Thunderstruck II Gameplay 2

How to Play Thunderstruck II

Thunderstruck II has simple controls down the right side of the game window. It is a simple game to play, and here’s a quick tutorial on how to get started.

  • Learn the Rules – Click the Menu bar at the top of the control panel and then the “i” icon. This will reveal game features and the paytable for the game.

  • Make Your Wager – The coins button at the bottom of the control panel controls betting. You can click on betting buttons or drag the slider to set your wager.

  • Spin! – The Spin button is the largest button on the screen. Click it to start playing the game. Above the spin button is the Autospin feature, and the quick spin option is below the button.

  • Play For Free – You can find a demo version of this game at most online casinos. Games Global has a demo version of the Mega Moolah version on its website.  You can then claim a casino bonus when making a deposit.

Special Features

Thunderstruck II boasts a myriad of special features. The primary free spins feature is similar to the one in Immortal Romance in that the more times you unlock it, the more features are available. Here’s a closer look at this game’s special features.

Please note that some casinos offer this game with the Mega Moolah jackpot mechanic. We’ll only focus on the game’s main features, as some casinos only offer the basic version.

Wild Wins Double

Like many Microgaming pokies, whenever a Wild completes a winning combination, that win is doubled.

Wildstorm Feature

The Wildstorm triggers randomly, and depending on your luck, 1 to 5 reels will turn Wild. Thor makes a special appearance when the feature initiates.

The Great Hall of Free Spins

The most striking feature in terms of entertainment and winning potential is the Free Spins in Thunderstruck II. Whenever you strike 3 or more Scatter symbols, you’ll be transported to the Great Hall, where you can dramatically increase your bankroll. The more you enter the Great Hall, the more features will be available. Once you have travelled to all the chambers, you can pick which feature you wish to revisit.

Valkyrie’s Free Spin Bonus

The first Free Spins chamber in Thunderstruck II is Valkyrie, where you can claim 10 Free Spins with a 5x Multiplier. The first four times you enter the Great Hall of Free Spins will be through this portal; then, you’ll move on to Loki’s chamber.

Loki’s Free Spin Bonus

The troublesome trickster Loki is guaranteed to meddle in your affairs with his 15 Free Spins. He may also interfere with his Wild Magic symbol, which turns randomly selected symbols Wild in an effort to help you attain more wins. You can expect to enter Loki’s chamber from the 5th to the 9th trigger, with Odin’s chamber following that.

Odin’s Free Spin Bonus

On the 10th trigger of the Bonus, the Ruler of Asgard magnanimously bestows 20 Free Spins upon you. Once the feature is initiated, Odin sends out his ravens to randomly fly into symbols, turning them into 2x and 3x Wild Multipliers. An impressive 6x Multiplier can be achieved if both birds fly into the same symbol.

Thor’s Free Spin Bonus

Only after entering the Great Hall of Free Spins 15 times in Thunderstruck II will you be granted access to Thor’s chamber of storms. Get your 25 Free Spins and Rolling Reels, which crumble away when winning symbols are present so that potentially more winning symbols can replace them. The Rolling Reels also feature up to a 5x Multiplier on wins.

Thunderstruck II Payouts And Symbols

There are 14 paying symbols in this game, including both the wild and scatter. All symbols except the scatter pay on three of a kind or greater. Here’s a rundown of the paying symbols.

Thunderstruck II low paying

Low-Paying Symbols – Card symbols ranging from Nines through Aces are the lowest-paying symbols in this game. Top wins range from 3.33x up to 5x your bet.

Thunderstruck II Medium

Medium-Paying Symbols – The warship and Asgard are the medium-paying symbols of this game. They pay from 8.33x up to 10x your bet.

Thunderstruck II high paying

High-Paying Symbols – The high-paying symbols of this game are the main characters. The Valkyrie, Loki, Odin, and Thor pay from 11.66x up to 16.66x your bet.

Thunderstruck II Wild

Wild – The Thunderstruck II symbol is the wild for this game and substitutes for everything except the scatter. It also pays on three of a kind or more. The top win is 33.33x your bet.

Thunderstruck II Scatter

Scatter – This symbol triggers the Great Hall of Spins feature and is the highest-paying symbol in the game. Two scatters on a board return your bet, while five earn 200x your bet.

Betting Options

Thunderstruck II has a flat betting structure that covers all paylines. There are a couple of different betting setups for this game. Some casinos let you bet from .01 up to $1 per spin. Others will have a broader betting structure ranging from .30 up to $24 per spin. The Mega Moolah option for this game will likely have a broader betting structure.


Thunderstruck II is a noble sequel to the original, offering fantastic features, including a potentially lucrative progressive free spins feature. With a top win of 8,000x your bet, you can become a legend of the Nine Realms. The one drawback is that the game has a lot of volatility, and you will need quite the bankroll to unlock all the features of the Great Hall of Spins. If you loved the original, you should definitely check out Thunderstruck II. It can be found at any online casino offering Microgaming or Games Global pokies.

Jamie Bungaree avatar
Jamie Bungaree
Head of Casino Games

Hi, I’m Jamie, the Head of Casino Games at CasinoAus. For over eight years, I’ve been exploring the exciting universe of iGaming, from pokies to table games. My experience isn’t just about playing; it’s about understanding the mechanics and delivering quality content. My background in journalism equips me to provide you with insights that go beyond the surface. I’m here to make sure you have an engaging and informative experience.

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