Thunderstruck Casino Slot for Real Money and for Free: Review

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Slot data
Free spins, x3 multiplier, x2 Wilds, Autospin and Turbospin.

Thunderstruck is a popular Microgaming online slot with classic gameplay and solid winning potential. It has a Norse mythology theme and a playing grid with 5 reels, 3 rows, and 9 paylines. Despite being released in 2004, Thunderstruck can match any modern video slot with its impressive max payout of 3333x the bet. It also features a thrilling free spins bonus round with x3 multipliers. This slot game is optimized for mobile and desktop play, which makes it an excellent option for Canadian players.

Thunderstruck Slot

Thunderstruck Slot’s RTP, Volatility & Max Payout

The Nordic adventure takes place on a 5×3 matrix set against a backdrop of darkened skies in the middle of a thunderstorm. Players can land wins across 9 paylines, with bet limits ranging from 0.18 to 90 coins per spin. This medium volatility game has an RTP rate of 96.1%, on par with many more slots popular in Canada. The maximum win you can land is 3333x.

Free Spins With x3 Multiplier Feature

Two long-horn rams represent the Scatter symbol. Landing 3 – 5 will trigger the bonus game and grant you 15 free spins. During this round, every win comes with a fixed 3x multiplier. Like in Thunderstruck II, players can retrigger the free spins feature an unlimited number of times. You must land another three or more Scatter symbols while playing the bonus game. 

Bonus Game 15 free spins with 3x win multipliers
TriggerLand 3-5 scatters anywhere on the reels
Bonus feature retriggerPossible
Highest win3333x

Symbols and Payouts

The game’s most valuable symbol is the Wild, represented by Thor himself and paying out 1111x for five of a kind. It substitutes for every symbol except the Scatter and pays 2x when substituting. Landing 5 Thor Wilds on a payline during the free spins round will deliver this slot’s 3333x maximum win. 

The Scatter pays an impressive 500x for five on a payline. Other high-paying symbols include Thor’s Hammer – Mjölnir – and Thor’s Fist, paying 83x when you match 5 in a row. Meanwhile, the Horn, Lightning, and Castle symbols pay between 28x – 44x for five of a kind. The low-value symbols are traditional playing cards worth between 11x to 14x for five in a row.

Wild (Thor)22x222x1111x
Scatter (Thor’s goats)5x20x500x
Thor’s Hammer


Thor’s Fist3x11x83x
Castle2x 11x44x
Symbols and Payouts

How to Play the Thunderstruck Free Play Slot

Here’s a simple guide on how to go about the Thunderstruck online slot free play:

  1. Step 1

    Visit a casino offering this slot and create an account.

  2. Step 2

    Open the Thunderstruck slot online free game and set your bet limits.

  3. Step 3

    Quickly review the paytable to ensure what each symbol pays.

  4. Step 4

     For Autoplay, click the three arrow icon and set the number of spins.

  5. Step 5

    To play manually, click the central Spin button.

Thunderstruck Online Slot on Mobile Devices 


Mobile play for this game is slightly different from the desktop experience. The play area is smaller and fixed to the center, with controls moved from the right corner to the bottom. There’s no need to download an app unless you’re playing at an online casino that offers Microgaming software and native apps. It was positive that players can easily access Thunderstruck online slot real money on their phone’s browsers.

Our Playing Experience

Thunderstruck Playing Experience
Thunderstruck Playing Experience

I’ll admit, playing this title does feel like being transported back in time to the era of Grand Theft Auto: San Andreas. The graphics are out-of-style, but that’s to be expected from one of the oldest Microgaming slots. There was nothing outdated about the Thunderstruck slot real money-winning feeling, though. Before my 10th spin, I had landed a massive $420 win on a $30 bet. Things did go a bit quiet for some time, but I was soon rescued by Scatter Symbols and their x3 multiplier free spins game. 

I had almost no complaints about the Thunderstruck slot machine. If I were to nitpick, I’d say the graphics could get boring after some time. But the fast-paced play and reward potential means there’s more to like than faults to complain about. 

Here are the pros and cons based on my Thunderstruck casino slots real money experience:

  • Above average return to player
  • Winnings of up to 3333x
  • Bonus game with 15 free spins and 3x multiplier
  • Fast, simple gameplay
  • Outdated graphics and sound effects

Thunderstruck Slot FAQs

What is the RTP of Thunderstruck?

The game’s RTP rate is 96.10%, which is within the standard range for Microgaming casino games.

Can I play Thunderstruck on mobile?

Yes, like most online slots, this game is available on smartphones and tablets. The gameplay is similar to the desktop, except for the smaller reels and the controls, which are in a different position.

What is the biggest win I can earn while playing Thunderstruck slots?

The biggest win you can earn is 3333x your stake. It’s the jackpot prize for landing five Thor Wilds during the free spins bonus game.

Are there any multipliers available in Thunderstruck?

Yes, a bonus game offers 3x multipliers on every win. Wild-substituted wins in the base game will also pay twice the bet.

Jeffrey Scott