12 Bolts of Thunder

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Rules and Gameplay

12 Bolts of Thunder offers an electrifying gaming experience with a simple yet engaging rule set designed to cater to both novices and seasoned players. Set against a 5×4 grid, the game operates with 20 fixed paylines, ensuring that players have ample opportunities to form winning combinations. Gameplay kicks off with a minimum bet of $0.10, extending up to a maximum of $100 per spin, accommodating a wide range of betting preferences. The essence of the game lies in matching three or more symbols on adjacent reels, beginning from the leftmost reel, to secure a win. The inclusion of a dynamic RTP of 96.15% and high volatility guarantees a thrilling balance of risk and reward, promising players an immersive Norse mythology-themed adventure.

Bonus Features

12 Bolts of Thunder is laden with captivating bonus features that significantly enhance the gameplay and potential winnings:

  • Hammer Win Feature: Landing four or more Hammer symbols on the middle reels triggers instant cash prizes, with rewards ranging from 2x to 1,000x the player’s wager.
  • Free Spins Bonus: Activated by landing three or more Scatter symbols, this feature awards up to 12 free spins. The presence of a Prize Hammer symbol during this round upgrades the prize table and adds extra free spins.
  • Bonus Buy Option: For players eager to dive directly into the action, this feature allows the purchase of the Free Spins Bonus at 100x the base wager, subject to regional availability.

These features, combined with the strategic element of collecting Hammer symbols, offer players an enhanced gaming experience filled with opportunities for substantial payouts.


The symbols of 12 Bolts of Thunder draw heavily from Norse mythology, enriching the theme with a mix of iconic and traditional slot imagery:

  • Wilds: Substitute for all symbols except Hammer and Scatter symbols, facilitating easier winning combinations.
  • Scatters: Key to unlocking the Free Spins Bonus, elevating the game’s excitement.
  • Hammer Symbols: Central to triggering the Hammer Win Feature, offering instant cash prizes.

These symbols not only complement the thematic setting but also play pivotal roles in the game’s bonus features, enhancing the overall engagement and winning potential.


12 Bolts of Thunder employs a fixed payline structure, featuring 20 paylines across a 5×4 grid. This setup requires players to land matching symbols in specific patterns to secure wins. The fixed payline approach ensures that all potential winning combinations are always in play, maximizing the player’s chances of achieving rewarding outcomes with each spin. This structure, combined with the game’s exciting bonus features and symbols, offers a dynamic and engaging gameplay experience that aligns well with the game’s thematic and visual allure.

Pros & Cons

Pros Cons
High RTP of 96.15% High volatility may not suit all players
Innovative Hammer Feature Dependency on maximum win for substantial rewards
Engaging Norse mythology theme Limited to 20 fixed paylines

Minimum and Maximum Bet

The 12 Bolts of Thunder slot offers a flexible betting range designed to accommodate a wide array of players. The minimum bet starts at $0.1, allowing those on a budget or looking to play conservatively to enjoy the game. On the other end, the game caters to high rollers with a maximum bet limit of $100. This broad betting range ensures that 12 Bolts of Thunder is accessible and enjoyable for players of all levels and bankrolls.

Game Jackpot

12 Bolts of Thunder boasts an electrifying game jackpot, with the potential for players to win up to 30,000 times their initial stake. This impressive maximum win is complemented by the game’s high Return to Player (RTP) rate of 96.15% and high variance. This combination ensures that while wins may not be as frequent due to the game’s volatility, the potential for significant payouts is high. This makes 12 Bolts of Thunder an enticing option for players seeking the thrill of large jackpots and the challenge of a high variance slot.

About Provider

Thunderkick, the esteemed developer behind 12 Bolts of Thunder is a Swedish game studio renowned for its innovative and high-quality video slots. Established in 2012, Thunderkick has made a name for itself in the online casino industry through its commitment to creating unique gaming experiences. Known for their creative themes, stunning visuals, and engaging gameplay mechanics, Thunderkick’s titles are a testament to their passion for game development. Their dedication to excellence and player satisfaction has solidified Thunderkick’s reputation as a leading provider of online slot games.

How To Play

  • Step 1: Load 12 Bolts of Thunder at your chosen online casino.
  • Step 2: Adjust your bet size using the game controls. You can bet anywhere from $0.1 to $100 per spin.
  • Step 3: Review the game’s paytable and rules to familiarize yourself with the winning combinations and special features.
  • Step 4: Hit the spin button to start playing. Alternatively, you can use the auto-play feature to set a specific number of spins to run automatically.
  • Step 5: Watch for special symbols like Wilds, Scatters, and Hammer symbols to unlock the game’s bonus features for higher wins.
  • Step 6: Keep an eye on your balance and adjust your betting strategy as needed throughout your session.


12 Bolts of Thunder is a dynamic and visually stunning slot game that offers a compelling blend of traditional Norse mythology with modern slot mechanics. With its high RTP, significant maximum win potential, and innovative features like the Hammer Win and Free Spins Bonus, it presents an engaging challenge to players. The game’s high volatility underscores its appeal to those seeking big wins, despite the inherent risks associated with less frequent payouts. Thunderkick’s reputation for creating immersive and high-quality slots is well represented in 12 Bolts of Thunder making it a must-play for enthusiasts of the genre. Whether you’re drawn to the captivating theme, the potential for huge rewards, or the quality of execution, 12 Bolts of Thunder is poised to deliver a thunderous gaming experience.