Strike it lucky with Thunderstruck! This slot has been around for quite a while, but here's why you can still play it, today.


3 Number of Rows
- Minimum Stake
9 Betlines
5 Wheels


Chance to win



General Information


Profit Information


Thunderstruck review

Thunderstruck is a slot released by Microgaming in October 2003. It follows a simple 5×3 format with a total of nine paylines. Despite being nearly 20 years old, Thunderstruck is still one of the most played online slots in Ontario, thanks to its quirky features, competitive RTP rate and high maximum prize. Read our review to learn more about Thunderstruck.

The game symbols have great payouts.The low volatility won’t be everyone’s cup of tea.
Innovative features, including special spins.The soundtrack is very bland.
Wide range of betting options

How We Tested Thunderstruck

Choosing a good slot is as important as picking a great online casino in Ontario. Thus, we test every slot to ensure players get the best out there. Here’s what our reviews evaluate:

Thunderstruck Logo Ontario
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  1. RTP & volatility – We compare the game’s RTP rate and volatility to similar titles.
  2. Jackpot and maximum win – We evaluate how much you can win in the game or if there’s a jackpot available. 
  3. Minimum and maximum bet – We analyze the different bets users can place. 
  4. Symbols – We rank the game’s symbols according to their payouts and graphic quality. 
  5. Special games – We checked if there are any special games you can unlock and how to do it.
  6. Wilds, respins and other features – We evaluate how these special symbols improve the gaming experience. 
  7. Graphics and soundtrack – We analyze the slot’s graphic quality and soundtrack to see how immersive it is.

Thunderstruck Symbols & Payouts

Thunderstruck includes 13 thematic symbols that contribute to a rich atmosphere. There are nine paylines where users can bet up to $45. You may receive wins up to 30,000x your stake if you’re lucky. Keep reading to find out more:

The Symbols

The symbols of Thunderstruck are all related to Thor, the God of Thunder. They feature a cartoonish design that doesn’t look outdated despite being nearly 20 years old. You’ll find Thor’s hammer, Thor’s hand, a castle, a lightning bolt, Gjallarhorn, and card symbols, from A to 9. 


Thunderstruck Paytable 1 Ontario
High-paying symbols
Thunderstruck Paytable 2 Ontario
Low-paying symbols


Thunderstruck online has nine paylines that pay from left to right. Only the highest combination per payline is paid to the player. 

Minimum/Maximum Bet & Autoplay

This slot has various bets, ranging from $0.09 to $45. This means Thunderstruck is a slot for everyone, whether you’re a slot beginner or an experienced player. There’s no Autoplay option, but players can activate the Quick Spin feature in the game’s settings.


Thunderstruck has an RTP rate of 96.10%, which is on par with the industry average for online slots. An RTP of 96.10% means players can theoretically expect a return of approximately $96.10 for every $100 staked.


This slot has low/medium volatility, meaning users can expect small yet frequent wins, unlike higher volatility slots, which offer rare but sizable victories. Thunderstruck is a good slot for those who play cautiously and don’t like risking it all.

Jackpot and Maximum Win

Thunderstruck Jackpot & Maximum Win Ontario
Thunderstruck has great payouts and a high maximum win

Under the right circumstances, players can land wins up to 30,000x their stake. You’ll need to fill the playing grid with Wild symbols during the special spins feature to achieve this.

Thunderstruck’s symbol payouts are among the best we’ve seen, ranging from 0.22x to 1,111.11x your stake. If you’re lucky enough to fill the playing grid with Wilds, you’re looking at a potential win of up to 10,000x during the base game and 30,000x during the special feature. 

Game Features

As expected from older slots, Thunderstruck isn’t as feature-packed as modern games. Still, you’ll find two features to keep you entertained – Double Wilds and Special Spins. Keep reading and see what each one brings to the table.

Wilds, Respins and Other Features

Thor is the game’s Wild and substitutes every other symbol except the rams Scatter. Once a Wild is part of a winning combination, it’ll double it, increasing the payout. Thor’s symbol is also very rewarding on its own, paying up to 1,111.11x your stake if you manage to land five in a single payline. 

Landing three ram Scatters unlocks the special feature, giving players 15 spins to start. During this round, all wins have a 3x multiplier that stacks with Thor’s Wild multiplier, which may increase wins by 6x. You can also trigger 15 respins by landing three additional Scatters during the feature.


Thunderstruck Wilds Ontario
Thor’s Wild substitutes other symbols and doubles all winning combinations


Thunderstruck Respins Ontario
Respins can be triggered by landing three ram Scatter symbols


Players can get a 2x multiplier from Thor’s Wild and a 3x multiplier during the special spins feature.

Thunderstruck Graphics & Sound

Thunderstruck’s symbols look good for its age, thanks to their cartoonish graphics and simple backgrounds. Microgaming even went the extra mile and gave some of them unique animations. See the table below for more information:

Optimized for Mobile👍
Special featuresWild multipliers, Special spins

Thunderstruck’s graphics are great, but the soundtrack is bland

Thunderstruck feels like a modern slot despite its age, showing how timeless a well-designed game can be. On the flip side, the soundtrack feels old and clunky. You’ll only hear the classic reel spin sound, with the occasional thunderstorm in the background. We wouldn’t blame you if you decide to mute it. 

Solutions if You Have Issues With a Game

Slot software isn’t perfect, and sometimes errors can happen. To ease things up, here’s what you need to do if your game malfunctions:

  1. If the slot stops during a round, you can replay it after restarting the game.
  2. If replaying doesn’t fix the issue, you should contact the customer service team at your chosen Ontario online casino.

Please be advised that wins and losses due to hardware or software errors are considered void, and all affected bets are returned to the users.


There’s a valuable lesson to be learned with Thunderstruck – you don’t need a modern slot to enjoy a good time. From high-paying symbols to quirky features, Thunderstruck was made with playability in mind. We became fans of this game, and we’re sure you’ll become one too.

However, not everything is bliss. The game’s low volatility isn’t for everyone, especially if you’re a high roller or prefer more risk/reward gameplay. We also didn’t like how dull the soundtrack felt. Overall, Thunderstruck gets a respectable 7/10.

Other Slots to Play if You Like Thunderstruck Online Slot

Did you enjoy Thunderstruck? Here are some similar slots you may love:

  1. Power of Thor Megaways (Pragmatic Play)
  2. Odin’s Riches (Just For The Win)
  3. Thunderstruck Wild Lightning (Stormcraft Studios)

Frequently Asked Questions

  1. What is Thunderstruck’s highest paying symbol?

The highest-paying symbol in Thunderstruck is Thor’s Wild, which pays up to 1,111.11x your stake if you land five in a single payline.

  1. What is the minimum and maximum bet in Thunderstruck?

Bets range from $0.09 and $45 in Thunderstruck.

  1. Can I play Thunderstruck in Ontario?

Absolutely! You can enjoy this game at nearly every online casino in Ontario.

Casino Content Writer
Kayleigh is a casino content writer for the Canadian market. Before working on this market, Kayleigh was writing for the general US market and further specialised in the Pennsylvania market. Now, she brings her knowledge and experience to the Ontario market! She’s been working as a writing professional for the last decade, and she’s dedicated to bringing you practical tips, right at your fingertips.


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