Thunderstruck II Mega Moolah

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Rules and Gameplay

Thunderstruck II Mega Moolah is an exciting slot machine that marries Norse legends with the chance to win progressive jackpots. It features a 5×3 grid and 243 ways to win, allowing players to place bets ranging from $0.30 to $24 per spin. The game stands out for its medium volatility and a return-to-player (RTP) rate of 92.01%, which is adjusted to account for the progressive jackpots. To play, simply adjust your bet size, hit the spin button, and watch for matching symbols across adjacent reels from left to right.

Bonus Features

Thunderstruck II Mega Moolah enriches the gaming experience with several dynamic bonus features:

  • Wildstorm Feature: This randomly triggered feature can convert up to five reels into wilds, maximizing your win potential.
  • The Great Hall of Spins: This feature is unlocked by landing three or more Thor’s Hammer scatter symbols. It includes several levels, each associated with a different Norse deity offering unique spins and multipliers:
    • Valkyrie: Awards 10 free spins and multiplies all wins by 5.
    • Loki: Provides 15 free spins with a chance to turn random symbols into additional wilds.
    • Odin: Grants 20 free spins with the Wild Raven feature, which can multiply wins by up to 6x.
    • Thor: Offers 25 free spins with Rolling Reels that can increase the multiplier up to 5x with consecutive wins.
  • Progressive Jackpots: Triggered randomly, this feature presents a wheel with four jackpot levels, offering players a shot at winning substantial sums.


The game uses iconic symbols that resonate with its Norse mythology theme:

  • Lower-value symbols: Rune-styled 9, 10, J, Q, K, and A.
  • Higher-value symbols: Depictions of Norse gods including Valkyrie, Loki, Odin, and Thor.
  • Special Symbols:
    • Wild: The Thunderstruck II logo, which doubles the payout when substituting in a win.
    • Scatter: Thor’s Hammer, crucial for unlocking the multi-level Great Hall of Spins.


The slot offers impressive payouts, particularly through its bonus features and progressive jackpots. Here’s a detailed look at the payouts for each symbol type:

Symbol 3x 4x 5x
9, 10 $0.16 $0.33 $3.33
J, Q $0.23 $0.50 $4.16
K, A $0.33 $0.66 $5.00
Viking Longship, Asgard $0.50 $2.00 $10.00
Gods (Valkyrie, Loki, Odin, Thor) Varies Varies Up to $16.66


Utilizing a 243 ways to win format, Thunderstruck II Mega Moolah offers players numerous opportunities to form winning combinations. Wins are achieved by matching symbols on adjacent reels starting from the leftmost reel, providing ample chances to score a win on every spin.

Pros & Cons

Advantages Disadvantages
Integrates a popular Norse mythology theme with immersive graphics and sound. At 92.01%, the RTP is lower than many traditional slots due to the progressive jackpot feature.
Features multiple engaging bonus rounds, including free spins and a Wildstorm feature. The medium volatility may not appeal to those who prefer either very frequent small wins or very large jackpots.
Opportunity to win one of four progressive jackpots, enhancing the excitement and potential rewards. Some players may find the gameplay slightly complicated due to the multiple features and bonus rounds.

Minimum and Maximum Bet

The betting options in Thunderstruck II Mega Moolah are designed to accommodate a wide range of players. The minimum bet required to participate is $0.30, making it accessible for those with smaller bankrolls. On the higher side, players can place a maximum bet of $24 per spin, allowing more seasoned players or those wishing to gamble higher stakes the opportunity to maximize their potential winnings.

Game Jackpot, RTP & Variance

Thunderstruck II Mega Moolah is renowned for its progressive jackpot feature, which includes four different jackpots: Mini, Minor, Major, and Mega, with the Mega jackpot starting at a staggering $1 million. The game’s RTP stands at 92.01%, which is lower than some standard slots but typical for games featuring progressive jackpots. The game’s variance is medium, which provides a balanced gameplay experience, blending the frequency of wins with the payout sizes effectively.

About Provider

Microgaming, the developer of Thunderstruck II Mega Moolah, is a titan in the online gaming industry, known for pioneering the first true online casino software in 1994. Their vast portfolio not only includes slots but also table games, poker, and bingo, offering products across all gaming verticals. Microgaming is celebrated for its innovation, reliability, and wide-reaching impact on the gaming market, continually pushing the boundaries of what’s possible in gaming technology.

How To Play

  • Select Your Bet: Begin by setting your bet level. Adjust your stakes between the minimum of $0.30 and the maximum of $24 per spin.
  • Check the Paytable: Review the paytable for information on the payouts for different symbols and the combinations necessary for the bonus features.
  • Spin the Reels: Press the spin button to start the game. Watch as the reels come to a stop, revealing potential winning combinations.
  • Trigger Bonus Features: Aim to land three or more scatter symbols to enter The Great Hall of Spins. Each entry into this bonus feature progressively unlocks additional free spins features with unique benefits.
  • Progressive Jackpot Opportunity: Keep an eye out for the random trigger of the jackpot bonus game where you can spin the jackpot wheel for a chance to win one of the four progressive jackpots.
  • Utilize Autoplay: For a hands-off approach, activate the autoplay feature to have the game play through a set number of spins automatically.


Thunderstruck II Mega Moolah offers an enriching blend of Norse mythology and thrilling casino action. This slot game is perfect for players who enjoy detailed themes, multiple bonus features, and the excitement of large jackpots. With its wide betting range, it accommodates all types of players, from novices to experienced gamblers. Despite a lower RTP, the chance to win significant progressive jackpots makes Thunderstruck II Mega Moolah a compelling choice for casino enthusiasts looking for big wins and a high-quality gaming experience.