Thunderstruck II

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Ever since its release in 2004, Thunderstruck has remained Microgaming’s most popular online slot game. None of the company’s subsequent slots games releases for the next six years came close to Thunderstruck’s popularity; until Microgaming announced the planned release of a Thunderstruck 2 slot game at the ICE Show in London in 2010.

By May of 2010, Thunderstruck 2 was released and made playable at selected casinos for desktop and mobile versions. The game retains the originals’ theme i.e., Norse Mythology.

However, Thunderstruck 2 has a slightly higher RTP value of 96.65%, medium volatility, and 243 paylines instead of the prequels’ 9 paylines. Join Free Spins No Deposit Casino today to play this slot and get sign up free spins on selected slots (Full T's and C's Apply)!

How to Play Thunderstruck 2

Thunderstruck 2 is playable on 5 reels, 3 rows, and has 243 ways to win. The rules are pretty standard for the base game; land 3 or more matching symbols from left to right to trigger a winning combination.

The game contains 4 similar but equally exciting bonus games based on central characters in Norse Mythology - Odin, Loki, Valkyrie, and Thor. The stakes range from a minimum amount of 30p and a maximum of £15. The maximum prize with Free Spins is 8,000x your stake and the jackpot prize for the game is 2.4 million coins.

Here’s how to play this online casinos slot:

  • Players are directed to a screen with a 5 reel and 3-row makeshift slot set against a stone background.
  • The control panel is located towards the right of the screen. The options are; Flash, Autoplay, Manual Play, Bets, and Instructions.
  • Bets can be placed between 30p and £15. Once you’re satisfied with your bet limit, you can play the game on autoplay, quick spin, or with manual controls.

Free Spins and Bonuses in Thunderstruck 2

What separates an exciting slot game from a dull one are the in-game bonuses. Compared to the original Thunderstruck slot game, Thunderstruck 2 has more bonuses.

What makes the bonuses even more exciting is that all 4 of them are based on the main characters found in Norse Mythology. There’s also a Great Hall Free Spins bonus.

At Free Spins No Deposit Casino players can avail of multiple promotional offers including 5 free spins on selected slots (Full T's and C's Apply). With more Free Spins, slot games get all the more exciting at Free Spins No Deposit Casino! The in-game bonuses in Thunderstruck 2 include:

  • Great Hall of Spins: The Great Hall of Spins is a multi-level free spins round. This is one of Thunderstruck 2’s most popular features. Once 3, 4, or 5 scatters drop on the reels, players get a chance to enter the Great Hall of Spins.

Scatters can land at any place on the reels and when they do, the Great Hall of Spins is unlocked. This feature is then further broken down into 4 levels as part of the multi-level round. 

  • Valkyrie Bonus: The first level in the Great Hall of Spins is the Valkyrie Bonus. If the Great Hall of Spins is triggered between your 1st and 4th bonus feature, the Valkyrie Bonus is unlocked. The Valkyrie awards players a maximum of 10 Free Spins and a maximum multiplier value of 5x your total stake.
  • Loki Bonus: The second level in the Great Hall of Spins is the Loki Bonus. If the Great Hall of Spins is triggered between your 5th and 9th bonus feature, the Loki Bonus is unlocked along with a Wild Magic Bonus.

The Wild Magic Symbol is only available on reel number 3. When it appears, 15 random symbols on the slots are chosen and transformed into wild symbols. This feature is similar to a shifting wilds feature. Players can win a maximum of 15 Free Spins.

  • Odin Bonus: The third level in the Great Hall of Spins is the Odin Bonus. If the Great Hall of Spins is triggered between your 10th and 14th bonus feature, the Odin Bonus is unlocked along with a Wild Raven Feature.

The Wild Raven feature awards players a maximum of 20 Free Spins along with two Raven symbols that can transform other symbols to either 2x or 3x multipliers. If both Ravens appear on the same reel, a maximum of 6x your stake can be won.

  • Thor Bonus: The fourth and final level in the Great Hall of Spins is the Thor Bonus. If the Great Hall of Spins is triggered in your 15th bonus feature, the Thor Bonus is unlocked along with a Rolling Reels feature.

The Thor Bonus awards players with a maximum of 25 Free Spins. The Rolling Reels transform random symbols into multipliers in a succession of 5x your wager limit.

The maximum that can therefore be won in the bonus rounds for Thunderstruck 2 is 8,000x your wager limit.

Graphics and Symbols

Thunderstruck 2 pays tribute to the God of Thunder, Thor. The game retained much of the original Thunstruck’s storyline, but with better graphics and more compelling rewards. The graphics for both desktop and mobile versions of the game are clean and crisp.

The two types of symbols are low-paying and high-paying ones. The low-paying symbols are the card symbols and the higher paying ones are the character symbols.

Symbols include regular card symbols such as; A, K, Q, J, 10 and 9 playing cards. Other symbols include Nordic gods Valhalla, Valkyrie, Loki, Odin and Thor. Thor is the highest-paying symbol in the game.

The Thunderstruck 2 logo acts as the wild symbol and substitutes for symbols except for Thor’s Hammer. 5 wilds on a payline will give you 33.33x your stake.


2 on a Payline

3 on a Payline

4 on a Payline

5 on a Payline

Viking Longship








































*All of the above values are subject to change at any time.

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Who is the Developer of Thunderstruck 2 Slots?

Microgaming is an award-winning software development company based in the United Kingdom. Microgaming's portfolio includes:

Microgaming has developed some of the world’s most well-paying slot games. In fact, their progressive slots have delivered a record-breaking £14.5 billion to players! Microgaming also developed the world’s first-ever online casino software in 1994 and was a pioneer in HTML5 technology for slot games in 2004.

The company is licensed under the Great Britain Gambling Commission.

Is Thunderstruck 2 a Hit or a Miss?

After Thunderstruck’s release and subsequent popularity, players thought it would be difficult if not nearly impossible for Microgaming to develop such a game again. However, the company did just that in 2010 (six years after the original’s release) when it developed Thunderstruck 2.

The pros of the game are:

  • Improved graphics
  • Multiple in-game bonus options
  • Interactive storyline

The cons of the game are as follows:

  • Availing bonuses might seem complicated to some players
  • The soundtrack is too overzealous

The game is definitely a step up from the original: more bonuses, better graphics and sound quality, bigger payouts, and better statistics. With all of these features, it’s pretty obvious that Thunderstruck 2 is a hit!

All in all, we'd give Thunderstruck 2 an 8/10.

Min/Max Bet


Return to Player (RTP)





5 reels, 3 rows & 243 paylines


Norse Mythology

Bonus Features

Wilds, Scatters, Free Rounds


Microgaming - 05.05.2010

Max Win

2.4 million coins

Game Controls

Autoplay, Quickplay, Flash, Music, Stop, Spin.

*All values in this table are subject to change at any time.

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Frequently Asked Questions

Can I play Thunderstruck 2 with no deposits and free spins?

Thunderstruck 2 contains several free spin rounds in its multi-level bonus game, Great Hall of Free Spins. Alternatively, Free Spins No Deposit Casino also offers Free Spins in its promotional offers.

How much can I win on Thunderstruck 2 slots?

A jackpot prize of 2.4 million coins could be won on Thunderstruck 2 slots. A maximum of 8,000x your stake could be triggered in the free rounds.

How do I win Free Spins on Thunderstruck 2?

Winning free spins on Thunderstruck 2 requires players to land at least 3 scatter symbols in the reels. This triggers the first level of the multi-level bonus feature. Subsequent levels are then triggered on subsequent bonus features.

Alternatively, Free Spins No Deposit Casino offers Free Spins on selected casinos including the Welcome Bonus which offers up to 500 free spins and the No Deposit Bonus which awards new players 5 free spins. (Full T's and C's Apply).

What is the RTP of Thunderstruck?

Thunderstruck has an RTP value of 96% which is slightly above average or right about average.

What is the volatility of Thunderstruck 2?

Thunderstruck 2 has a medium volatility grade.

Can I play Thunderstruck 2 on my mobile?

Yes, Thunderstruck 2 is playable on both desktop and mobile versions. The graphics and gameplay remain the same.

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