Thunderstruck 2 Slot (Microgaming)

The Thunderstruck 2 slot is played on 5 reels, 3 rows and 243 ways to win. One of the first slot games to use this configuration, winning combinations will be formed when 3, 4 or 5 matching symbols appear, in any position, across successive reels and starting from reel 1 (the leftmost reel). Only the highest win is paid per way to win.

Bets-wise, you can play the iconic Thunderstruck 2 from just 30p per spin. You’ll find the maximum bet varies but tops out at £60 a spin. To change your bet, click or press the Coins icon where you have a few Quick Bet options as well as a slider. Not from the UK? There is Autoplay which allows 10 to 100 auto spins as well as Quick Spin mode.

The Thunderstruck 2 RTP rate is 96.65%. This is a lot higher than the 96% average you’ll find in online slot games. Microgaming has also produced a 94.13% RTP version which will be used at the majority of UK slot sites. Check by opening the game and going to the Help link (it’s not in the Paytable).

Medium volatility, winning combinations will land every 3.06 spins on average as the hit frequency rate is 32.62%. Expect wins to be smaller most of the time with the bigger wins landing when you deliver the various bonus features. There is no information on the frequency of feature triggers.

In terms of win potential, the Thunderstruck 2 slot comes with 8,000 times bet max wins. With no max win probability information, the maximum payout or jackpot can be won from the Loki Free Spins feature or Wildstorm feature (more details below in the Bonus Features section).

Chris Taylor

The King of Slots

Chris Taylor is an industry veteran originally from Gibraltar. Having worked in the online gambling industry since 2004, Chris loves slots and has reviewed over 10,000 online slot games. Running a slots-focused website for 13 years, Chris is the go-to guy for everything slots-related.

Released originally in May 2010, the Thunderstruck 2 slot game has a Norse mythology theme as you head to Asgard’s realm. Based on the hammer-wielding god Thor who is associated (according to Wikipedia) with lightning, thunder, storms and strength amongst other things, you’ll encounter other Norse gods.

Despite being remastered by Microgaming/Games Global in December 2020, the imagery is true to the original game and not as high-definition as newer releases. Faster and with sharper animations, the first thing you’ll notice is the soundtrack which could easily feature in a Netflix series or blockbuster film. It’s epic, powerful and fit for any Norse god.

On the reels, you’ll encounter A, K, Q, J, 10 and 9 low-value symbols. The higher-value ones include a Viking longship, Valhalla and Norse gods Valkyrie, Loki, Odin and, of course, Thor. The Thor symbol pays the most awarding 16.67 times your total bet for 5 in combination.

Thunderstruck 2 comes with a Wild symbol that substitutes for all the paying symbols above. Doubling your win when part of a winning combination, 5 Wilds will pay 33.33 times your total bet. Then you have the Thor’s Hammer Scatter (known as the Mjolnir) which is key to triggering the free spins. It also pays up to 200 times your total bet. Below is a list of symbol payouts and functions:

• 10/9: 3, 4 or 5 = 0.16, 0.33 or 3.33 x bet
• Q/J: 3, 4 or 5 = 0.23, 0.5 or 4.16 x bet
• A/K: 3, 4 or 5 = 0.33, 0.66 or 5 x bet
• Viking Longship: 3, 4 or 5 = 0.5, 2 or 8.33 x bet
• Valhalla: 3, 4 or 5 = 0.5, 2 or 10 x bet
• Valkyrie: 3, 4 or 5 = 0.66, 2.66 or 11.66 x bet
• Loki: 3, 4 or 5 = 0.66, 2.66 or 13.33 x bet
• Odin: 3, 4 or 5 = 1, 3.33 or 15 x bet
• Thor: 3, 4 or 5 = 1, 3.33 or 16.66 x bet
• Wild: Substitutes & 3, 4 or 5 = 2.5, 6.66 or 33.33 x bet
• Thor’s Hammer Scatter: 3+ triggers The Great Hall of Spins + 5 pays 200 x bet

Thunderstruck 2 Mobile

Remastered in December 2020, Thunderstruck 2 now uses HTML5 technology. Adapting to all devices including laptops, PCs, mobiles and tablets, there is a Portrait Mode available for iOS and Android smartphone users. The 5x3 reel setup lends itself well to mobile play.

Thunderstruck 2 slot comes with 8 bonus features. With random wild reels (up to 5) in the base game, the game focuses on the 4 free spins features. Based on a Norse god, they award varying numbers of free spins with extras including 5x multipliers, extra wilds, Rolling Reels with an increasing multiplier up to 5x and Odin’s Ravens which can combine for a 6x multiplier.

Wildstorm

Randomly on any spin, the Wildstorm feature can strike with lightning bolts shot onto 1 or more reels. This will in turn transform the struck reels into wild reels. With 1 to 5 wild reels possible, a win of 8,000 times your total bet will be awarded if you land 5 wild reels (the game’s max win).

The Great Hall of Spins 

Thunderstruck 2 is known for The Great Hall of Spins features. Also known as Valhalla, it’s triggered by landing 3 or more Thor’s Hammer Scatter symbols anywhere on the reels. Furthermore, 2, 3, 4 or 5 scatters landing on the same spin will result in a payout of 1, 2, 20 or 200 times your total bet respectively.

The Great Hall of Spins has 4 free spins features but only the Valkryie Free Spins feature will be available to play when you enter initially. You need to trigger The Great Hall of Spins several times to have the choice of all 4 features. Track your progress with the progress bar above the reels.

Anyway, here is what each of the features entails:

• Valkyrie Free Spins: You will receive 10 free spins with a 5x multiplier. You can retrigger the feature for 10 additional free spins and 20 free spins in total. Maximum wins of 1,383 times your total bet can be won per free spin.
• Loki Free Spins: Beginning with 15 free spins, there is a Wild Magic feature which is activated when Wild Magic symbols appear on reel 3. They then transform symbols in extra wilds. 2, 3, 4 or 5 scatters will result in 1, 2, 3 or 4 additional free spins for up to 29 in total. Per free spin, you can win up to 8,000 times your total bet.
• Odin Free Spins: With 20 free spins awarded, there is a Wild Raven feature where Odin’s Raven symbol transforms symbols randomly into 2x and 3x multipliers. If 2 Odin’s Raven symbols appear, you’ll get a 6x multiplier which can give you 3,320 times bet max wins per free spin.
• Thor Free Spins: With 25 free spins on offer, every winning combination triggers the Rolling Reels feature. After each win, the multiplier rises to 2x, 3x, 4x and lastly 5x. This can award 1,383 times bet max wins per free spin.  

The Thunderstruck 2 slot is as iconic as slot games come. Despite being released in 2010, it was the inspiration for the Immortal Romance and Game of Thrones slots using the bonus feature setup.

A classic amongst classics, Thunderstruck 2 was ahead of its time with a multi-level offering that offered various modifiers based on each of the Norse gods. The soundtrack is also regarded as one of the best to this day.

The Wildstorm feature can randomly award up to 5 wild reels which would result in the max win being achieved. However, it’s The Great Hall of Spins where the action is. The key is to trigger it various times which gives you the pick of 4 free spins features. Each with its graphics and modifiers, the Loki Free Spins feature allows you to win the maximum amount on each free spin.

With 8,000 times bet max wins, Thunderstruck 2 comes with a very high 96.65% RTP rate. Standing the test of time, this game paved the way for 243 ways to win slots and games with multiple free spins features.

Due to its popularity, various other slot studios created Norse mythology-themed slots including Stormforged (Hacksaw Gaming) and Fury of Odin Megaways (Pragmatic Play).

Games Global (formerly Microgaming) has built on the success of Thunderstruck 2 to release Thunderstruck Wild Lightning (July 2021) and Thunderstruck Stormchaser (November 2022).

In May 2022, Thunderstruck 2: Mega Moolah was released which is the same as Thunderstruck 2 but with progressive jackpots. Forming part of the Mega Moolah series, the Mega Jackpot pays out over €6.69 million every 49 days with the top win recorded in October 2018 (€18.9 million).

The Thunderstruck 2 slot review was written by Chris Taylor from our OLBG Expert team who has written over 10,000 slot game reviews in an iGaming career spanning over 2 decades. It was then verified by Jenny Mason, our prime Slot reviewer who has 17+ years in online gambling, for top UK brands.  

Jenny Mason

Queen of Bingo

Jenny Mason has more than 17 years of experience in the online gambling industry and has worked for some of the UK’s top betting brands. She started at OLBG in 2014, and her role involved creating great content and looking after marketing activities. Jenny is knowledgeable in all areas with specialisation in Bingo and Online Slots.