Thunderstruck video slot, released in 2004, was one of the early successes for gaming developer Microgaming, who have gone on to be one of the biggest names in the industry. It was no surprise that they chose to revisit the theme in 2010, with the release of Thunderstruck II video slot game.
The video slot game has a popular Norse mythology contact, based around Thor, the god of thunder. The theme of this slot involves Thor travelling with other gods through Asgard, accompanied by a suitably dramatic soundtrack, although the graphics are starting to show their age. The five-reel, three-row layout is packed with Norse symbols on the reels including Thor, Odin, Loki, Valhalla and a Valkyrie, as well as the familiar playing card numbers.
This slot game has a relatively high RTP of 96.65% and has a maximum win of x8100 your stake, making it a potentially high paying title, thanks to the 243 paylines. It is possible to play from as little as $/€/£0.30 to a maximum of $/€/£15 per spin, and there are handy Auto Play and Quick Spin options.
Although this has proven a popular slot game, it is actually fairly low variance, offering plenty of smaller wins, while the bigger wins are available in the numerous bonus games.
The heart of this slot game is in the Great Hall of Spins, which serves as the bonus section of the gameplay. This is launched when you line up 3, 4 or 5 of the Thor’s Hammer Scatter symbols, which will also pay you up to x200 your stake. There are multiple levels of bonus available.
The Valkyrie Free Spins bonus occurs the first time you trigger the Great Hall during Thunderstruck II base game and gives you a handy 10 Free Spins and a x5 multiplier, though it is possible to retrigger this bonus up to a maximum of 20.
From the fifth time you trigger the Great Hall, you will open the Loki Free Spins bonus game, which includes the Wild Magic bonus. When the Wild Magic icons occur on reel 3, symbols on the reels will randomly change into more Wilds, and there are further Free Spins available.
The Odin Free Spins bonus occurs after the 10th trigger and it gives you 20 Free Spins, with the Wild Raven feature added to the mix. The Wild Raven symbol has the effect of turning other symbols into x2 and x3 multipliers, and if you can land two Ravens, you will earn a x6 multiplier.
Finally, the biggest bonus of Thunderstruck II game is the Thor Free Spins. Trigger the Great of Hall of Spins on 15 occasions and you can earn 25 Free Spins thanks to the Rolling Reels feature. Each time you bring up a winning combination, the multiplier rises, up to a maximum of x5.
Thunderstruck II video slot game may not have had quite the same impact as the original slot game, but it is a worthy successor, and in many ways was ahead of its time in offering an innovative series of bonus games that gave the gameplay a video-game style feel.