King Casino Background

Thunderstruck II Slot

Thunderstruck II by Microgaming is a 5 reel, 243 ways to win online slot. If it sounds familiar, that’s because it is one of the most popular online casino slots of all time.

*Any values mentioned are subject to change.


Thunderstruck II Game Overview

This Norse mythology themed slot will have you benefiting from features like 5x multipliers, the special Wildstorm feature can be activated randomly to offer up to 5 fully wild reels, up to 4 extra spins features based on Valkyrie, Loki, Thor and Odin, random wilds, extra multipliers, Rolling Reels, etc.

You will end up winning over 8,000x your bet through the Wildstorm feature or on a single Valkyrie spin. Stakes start from 30p to £15 per spin on all Android and iOS devices.

How to Play Thunderstruck II Slots Game

Players better get ready to experience an epic theme that’s been brought to life extremely well by Microgaming and it is available on the best online casino now. As you spin, you’ll notice that the graphics/animations are a bit dated since the slot was released in 2010.

This can be an advantage because the slot has a touch of nostalgia. Symbols on the reels include card values Q, J, A, K, 10 and 9, Viking longships, Nordic gods Valkyrie, Valhalla, Odin, Loki and Thor. Thor rewards their highest value of 16.67x your total bet.

The Thunderstruck II logo acts as the wild and performs all the usual substitution duties except the scatter that is Thor’s Hammer. When the wild forms part of a winning combination, your payout ends up doubled. 5 wild symbols on a line reward 33.33x your bet. If 4 Thor symbols appear in conjunction with a wild, you also win 33.33x your bet. Wins can be formed when matching symbols line up left to right.

Thunderstruck II Bonus Features

Wildstorm Feature

This Thunderstruck II feature is randomly triggered to offer up to 5 reels that become fully wild. You can win up to 1,000x your total bet on our online casino!

The Great Hall of Spins Features

Microgaming’s Thunderstruck II has the The Great Hall of Spins feature that is activated when 3, 4 or 5 Thor’s Hammer scatter symbols land on the reels. You also win payouts when 2, 3, 4 or 5 scatters land and you get 1x, 2x, 20x or 200x your total bet. It works like a multi-level spins feature, where 4 different options are offered. You can activate several other levels once you activate The Great Hall of Spins a couple of times:

  • Valkyrie feature – this becomes available right from the initial trigger and offers 10 extra spins plus a 5x multiplier. The great thing is that you can win more spins.
  • Loki feature – this becomes available from the 5th trigger and offers 15 bonus spins. Thanks to the Wild Magic feature, symbols on the 3rd reel are transformed into wilds randomly. You can also receive 1, 2, 3 or 4 additional spins when 2, 3, 4 or 5 scatter symbols land.
  • Odin feature – this feature becomes available right from the 10th trigger and awards you 20 bonus spins. The Wild Raven feature is triggered when Odin’s Raven symbols randomly transform symbols on the reels into double and triple multipliers. If both raven symbols land on the reels, you’ll win from the 6x multiplier.
  • Thor feature – this becomes available when you have entered The Great of Hall of Spins feature a total of 15 times. You’ll be offered 25 extra spins in the Rolling Reels feature. There’s even better news once you form winning combinations because the multiplier value rises to 2x. If you form even more winning combinations, the multiplier increases up to 3x, 4x and then 5x.

Microgaming – The Developer of Thunderstruck II

Microgaming is one of the oldest and most respected online casino slot developers in the world. The company was launched in 1994, so they’ve witnessed a lot of industry shifts with time. They started out with launching their first online casino in the same year.

This was a major move as it showed casino operators and fans that the company is dedicated to providing quality slot gaming products. That’s something you want potential clients understanding too. For more electrifying slots, check out the Big Thunder Quad Shot slot, or the The Thunderer slot.

Other Games by Microgaming

Because the company was formed at the onset of the online betting revolution, a lot of their slots are much older and have a brick and mortar theme. If this isn’t your thing, you’ll be happy to know that there are over 300 Microgaming slots released.

This offers a world of opportunity to newcomer slot players, seasoned slot players as well as veterans. You can find their slots in land based casinos and a large number of online casino sites. If you’re looking for something else, you will find 300 more Microgaming casino games that include table games, bingo, slingo, etc. Microgaming offers some of the best card games.

Their goal is to make the player feel like they are at the centre of the action in a land based casino. So, their table games include high quality graphics, sharp enough for you to follow the roulette wheel clearly or see what cards dealt in blackjack.

For more games like Thunderstruck II slots online check the list below:

Thunderstruck II Bonuses

Return To Player

Return to Player (RTP): 96.65%

RTP is used to explain the potential money that an online slot or casino game can pay back to players. It appears as a percentage and is generally calculated from gameplay over a long duration of time.

For example, if a slot has a RTP of 97% this means that it could pay back £97 for every £100 wagered.

However, there is no guarantee that players will receive this amount, as slot payouts are entirely random.

The Verdict on Thunderstruck II slot 

If you’ve stuck around until this point, then you already know why Thunderstruck II by Microgaming is one of the most famous slots. Given the diversity in features, it’s surprising that this is a 2010 slot. The bonus features are way ahead of their time.

This is especially so for The Great Hall of Spins where you get to choose 4 bonus spins features you enjoy once you access it 15 times or more. You don’t need to note down how many times you activate the features because there’s a progress bar conveniently placed on the side to show you how many times you’ve accessed it.

This medium variance slot offers big wins likely from the Wildstorm feature and Loki feature via the 5x multiplier. Thanks to that generous multiplier, you can win over 8,000x your stake per spin in Thunderstruck II.

Once you start up Thunderstruck II, you’ll notice it has an old feel. However, it is still extremely popular among audiences all over the world. If you overlook the visuals, you will find that very enjoyable and profitable features await you in this Microgaming slot. If you enjoyed this, why not also check out a NetEnt release, the Starburst slot?


*All values (Bet Levels, Maximum Wins etc.) mentioned in relation to this slot game are subject to change at any time.