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Slot Review

King of Thunder

Our Rating:

92.46% Gold star

King of Thunder by Fazi
No, take me back

Visitor Rating:

0,00% No star

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USARated 97.25/100%

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220%/$8,000 +200 Free Spins

65x wagering

Number of games
96+
Payment methods
1
Game providers
76
Min deposit
20
US Players
Accepted

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Mladen Gyuzelski | Content Creator

Updated: Jun 23, 2025

Quick Facts

Provider: ProviderThe Slot Provider is none other than the company who developed the slot. Simply click on the name of the provider to find our more about it!
Date Launched: Date LaunchedThe date when this slot game was launched. 15/12/2022
Theme: ThemeTheme is the general genre that the the slot could be classified as. One of the elements that makes slot games appealing, A nicely planned popular theme can potentially skyrocket the popularity of an online slot! Card Suits, Greek Mythology, Horseshoe, King, Legends, Mythical, Zeus
Jackpot: JackpotA stand-alone or multi-leveled progressive prize pool that a player can win at a given time, simply by spinning the reels.
Special Symbols: Special SymbolsThe special symbols of a slot are part of its mechanic. Elements such as Wilds, Scatters and regular paying symbols come together to form winning combinations. Multipliers, Scatters, Sticky, Walking, Wilds

Review Summary

King of Thunder is a visually striking video slot developed by Fazi that immerses players in a mythical world inspired by ancient legends and the power of Zeus. Featuring a 5-reel, 3-row layout with 10 fixed paylines, the game combines classic slot elements with modern features like moving wilds, sticky wilds, free spins, and multipliers. The gold and gray color palette alongside thematic symbols such as thunder, harps, and horseshoes enhances the atmosphere. With a medium volatility and an RTP of 96.21%, it offers balanced gameplay suitable for a broad audience, making it both accessible and thrilling.

Slot Information

Return to Player (RTP): Return to Player (RTP)The Return to Player is a statistic that aims to show the player's edge over the casino - the higher this number is the better! We review all slots based on this RTP value so click on the percentage on the right to find our more slots with a similar RTP! 96%
Volatility/Variance: Volatility/VarianceVolatility or Variance is meant to describe the winning potential of a slot game: a high volatility will have you win big but no so often, while a low volatility will let you win frequently, but less. High
Progressive Slot: Progressive SlotA progressive slot is a slot that keep on growing its total possible winning pool; usually linked by a network of slots. It is also known as a jackpot.
Slot Type: Slot TypeSlots can be categorized as classic, 3D, video slots, etc. Click on the type of slot on the right to see similar types of slots! Video Slot
Rows: RowsPart of the design of the slot, the rows are the horizontal lines that trigger special features when certain paying symbols fall in place. 3
Reels: ReelsReels are the vertical lines that are build in the slots architecture; together with the rows they help trigger special winning combinations. 5
Paylines: PaylinesPaylines, or betting lines, are the pre-determined links of symbols across the rows and reels of a slot. A slot can have anywhere from just 1 payline or up to thousands paylines! 10
Slot Layout: Slot LayoutThe layout of the slot is the way the slot is built, based on the number of rows, reels and paylines. 5 x 3

Pros

  • Engaging mythological theme with high-quality graphics and sound.
  • Features multiple types of wilds including moving, sticky, and multiplier wilds.
  • Free Spins round with expanding wild reels enhances winning potential.
  • Fully optimized for mobile and desktop play with smooth performance.

Cons

  • Limited to 10 paylines, which may feel restrictive to players who prefer more paylines.
  • Themed around mythological elements, which may not appeal to all players.
  • Some bonus features may require triggering specific scatter combinations, which can be rare.

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Screenshots

King of Thunder Win

King of Thunder Win

King of Thunder Paytable

King of Thunder Paytable

King of Thunder Free Spins Win

King of Thunder Free Spins Win

King of Thunder Free Spins

King of Thunder Free Spins

King of Thunder Big Win

King of Thunder Big Win

King of Thunder Base Play

King of Thunder Base Play

Expert’s Opinion

Mladen

1911 Articles

From an expert perspective, King of Thunder by Fazi stands out as a well-balanced slot combining solid gameplay mechanics with engaging thematic elements. The medium volatility suits a broad audience, providing a satisfying mix of frequent smaller wins and occasional bigger payouts. Features like moving and sticky wilds add depth and excitement, while the Free Spins with multipliers offer good winning potential. Overall, it’s a polished title that delivers both entertainment and a fair chance to win, making it a noteworthy addition to Fazi’s portfolio.

9.25 /10 by Mladen Gyuzelski

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Introduction to King of Thunder

King of Thunder Thumbnail SmallKing of Thunder is a mythological video slot developed by Fazi, drawing players into a dramatic world ruled by Zeus, the god of thunder. Released in late 2022, this title combines classic slot structure with rich, immersive visuals and innovative features. With 5 reels, 3 rows, and 10 paylines, it offers a balanced medium variance experience, suited for a wide range of players. The game is powered by modern HTML5 technology, ensuring smooth performance across devices, while its striking theme—filled with lightning, Greek symbolism, and legendary energy—makes King of Thunder a standout in Fazi’s portfolio.

King of Thunder Slot Provider

Fazi

Fazi

USA Rated 90.70/100%

219 Casinos | 117 Games

All Casinos
Number of games
117
Country
Serbia
Founded
1991
  • Slots
  • Table Games

The developer behind King of Thunder is Fazi, a well-established name in the world of slot game production. Known for blending traditional gameplay with modern design and smooth mobile compatibility, Fazi has built a reputation for crafting engaging slots that appeal to both classic and modern players. With a portfolio that balances simplicity and innovation, Fazi consistently delivers titles featuring sleek visuals, intuitive mechanics, and well-calibrated volatility. King of Thunder is a strong example of the studio’s commitment to quality—offering not only an entertaining experience, but also technical reliability and thematic depth centered around myth and legend.

King of Thunder Slot Characteristic:

Characteristic Value
Paylines 10
RTP 96.21%
Max Win 1656x bet
Bonus Game no
Special Symbols Scatter Symbols, Wild Symbols
Paid Symbols 8
Free Spins no
Reels 5
Rows 3
Slot Layout 5×3
Technology HTML5, JS
Platforms Mobile, Desktop, Tablet
Minimum Bet $0.1
Maximum Bet $40

King of Thunder Slot Gameplay and Mechanics

King of Thunder Base Play

King of Thunder by Fazi features a classic 5×3 reel layout with 10 fixed paylines, offering a familiar yet dynamic foundation for gameplay. With a medium volatility setting and an RTP of 96.21%, the slot balances frequent moderate wins with bursts of larger payouts. Players can place bets ranging from €0.10 to €40 per spin, making it suitable for casual players and high-rollers alike. The symbols include a mix of themed icons such as harps, horseshoes, and Zeus himself, along with traditional card suits representing the lower-paying values. Wins are formed by landing matching symbols from left to right across the paylines.

Where King of Thunder truly shines is in its special features. Landing three scatter symbols triggers the Free Spins mode, awarding 6 free spins with a sticky wild symbol that remains fixed on the reels throughout the bonus round. This feature can significantly boost winning potential, especially when combined with wilds that carry multipliers or move around the reels as “walking” wilds. Additionally, players have the option to activate a risk/gamble feature after any win, giving them a chance to double their payout in a simple card prediction game. Altogether, the mechanics are intuitive but rich in variation, making King of Thunder both easy to pick up and rewarding over extended play sessions.

King of Thunder Slot RTP

96-97 RTP Range

The King of Thunder slot by Fazi offers a Return to Player (RTP) rate of 96.21%, positioning it above the industry average for video slots. This RTP indicates that, over a long period of play, the game is designed to return €96.21 for every €100 wagered, although actual results can vary widely in the short term due to the game’s medium volatility. The balanced RTP makes King of Thunder appealing to players seeking a steady mix of smaller and moderate wins, while still leaving room for larger payouts through bonus features like sticky wilds and free spins multipliers. It's a well-rounded figure that complements the game's dynamic yet accessible design.

King of Thunder Slot Volatility

High volatility iconKing of Thunder features medium volatility, offering a balanced gameplay experience that sits comfortably between frequent low-value wins and occasional high-payout bursts. This level of variance makes the slot suitable for a wide audience, from casual players who enjoy longer play sessions to those looking for decent win potential without extreme risk. The game’s features—such as free spins with sticky wilds and walking wild multipliers—enhance the medium variance by providing moments of heightened excitement without compromising consistency. Overall, the volatility setting in King of Thunder aligns well with its design, ensuring a steady yet engaging rhythm of play.

King of Thunder Slot Betting Range

The betting range in King of Thunder by Fazi is designed to accommodate a wide variety of player preferences and budgets. With a minimum bet set at €0.10 and a maximum bet of €40.00 per spin, the slot offers flexibility for both casual players and those who prefer higher stakes. This range allows for controlled, low-risk gameplay while still providing the option to scale up for more intense sessions. Whether you're testing the waters or chasing bigger wins, the adjustable bet settings make King of Thunder accessible and adaptable to your playing style.

King of Thunder Slot Symbols Explained

King of Thunder Paytable Symbol 6In King of Thunder, Fazi combines rich mythological visuals with classic slot elements to create a compelling symbol set. The standard symbols include a mix of high-paying thematic icons—such as a harp, a horseshoe, a golden wreath, and Zeus himself—each contributing to the game’s ancient Greek atmosphere. These symbols offer higher payouts when aligned across the 10 fixed paylines. For the lower-tier symbols, traditional card suits (hearts, diamonds, clubs, and spades) are used, rendered in stylized designs to match the overall aesthetic. The game pays from left to right, and landing three or more matching symbols typically results in a win.

King of Thunder Paytable Symbol 2King of Thunder also features a selection of special symbols that drive its bonus mechanics. The Wild symbol plays a central role, substituting for regular symbols to help form winning combinations. During free spins, one wild becomes sticky, remaining locked in place throughout the bonus round. There are also moving wilds, or “walking” wilds, which shift positions on the reels, creating new win opportunities. The Scatter symbol is another key icon, triggering the free spins feature when three appear anywhere on the reels. These special symbols not only enhance the excitement but also contribute to the slot’s potential for increased payouts, especially when paired with multipliers.

King of Thunder Symbols

The symbols in King of Thunder by Fazi include a mix of thematic icons like Zeus, harps, and horseshoes for high-value wins, alongside classic card suits representing the lower-paying symbols.

King of Thunder Paytable Symbol 5

x5 = 200.000

x4 = 60.000

x3 = 30.000

King of Thunder Paytable Symbol 4

x5 = 2.000.000

x4 = 20.000

x3 = 4.000

King of Thunder Paytable Symbol 3

x5 = 50.000

x4 = 12.000

x3 = 6.000

King of Thunder Paytable Symbol 2

x5 = 120.000

x4 = 30.000

x3 = 12.000

King of Thunder Paytable Symbol 6

x5 = 600.000

x4 = 60.000

x3 = 30.000

King of Thunder Paytable Symbol 1

x5 = 20.000

x4 = 6.000

x3 = 3.000

King of Thunder Paytable Symbol 7

x5 = 15.000

x4 = 4.000

x3 = 2.000

King of Thunder Slot Features

setting

King of Thunder offers a compelling set of features that enhance both excitement and winning potential. The highlight is the Free Spins round, activated by landing three scatter symbols, which awards 6 free spins with a special sticky wild that stays fixed on the reels throughout the bonus. Additionally, the game includes walking wilds—wild symbols that move across the reels to create fresh winning chances. Some wilds come with multipliers, boosting payouts significantly when they form part of winning combinations. The slot also includes a Risk/Gamble feature, allowing players to try doubling their wins by guessing the outcome of a card draw. Together, these mechanics provide dynamic gameplay that keeps players engaged while offering opportunities for substantial rewards.

Feature Description
Free Spins Triggered by 3 scatter symbols, awarding 6 free spins with enhanced win potential.
Sticky Wilds A wild symbol that remains fixed in place during free spins, increasing chances of winning.
Walking Wilds Wild symbols that move across reels, creating new opportunities for wins.
Wild Multipliers Wilds that carry multipliers, boosting the value of winning combinations.
Scatter Symbols Special symbols that activate free spins when 3 or more appear anywhere on the reels.
Risk/Gamble Feature An optional game allowing players to double their winnings by correctly guessing card color.

King of Thunder Demo Version

Demo Version Icon

The King of Thunder slot by Fazi is available in a demo version, allowing players to explore the game’s mechanics and features without risking real money. This free-play mode is perfect for newcomers who want to get familiar with the gameplay, paylines, and bonus features like free spins and sticky wilds before committing financially. The demo provides a realistic experience, mirroring the full game’s look, feel, and sound effects, and is accessible on both desktop and mobile devices. Trying out the demo version is a great way to understand the slot’s volatility and betting options, making it easier to develop a winning strategy for when playing with real stakes.

King of Thunder Slot Compatible Devices

smartphoneKing of Thunder by Fazi is built using modern HTML5 and JavaScript technologies, ensuring seamless compatibility across a wide range of devices. Whether you prefer playing on a desktop computer, laptop, tablet, or smartphone, the game delivers smooth performance and sharp graphics. Its responsive design adapts perfectly to different screen sizes and operating systems, including Windows, macOS, Android, and iOS. This makes King of Thunder easily accessible for players on the go, providing a consistent and engaging experience regardless of the device used.

Frequently Asked Questions (FAQs)

These questions provide concise answers to common queries about King of Thunder, ensuring clarity and understanding for players.

What is the RTP of King of Thunder?

The Return to Player (RTP) of the King of Thunder slot by Fazi is 96.21%. This RTP indicates that, over a long period of play, the game is designed to return €96.21 for every €100 wagered, though actual results can vary widely in the short term due to the game's medium volatility. This RTP is considered competitive and aligns well with modern online slots, offering a balanced experience for players seeking a mix of frequent smaller wins and occasional larger payouts.

What is the maximum win in King of Thunder?

The maximum win in the King of Thunder slot by Fazi is 1,656 times your stake. This means that if you place the maximum bet of €40 per spin, the highest possible payout could reach €66,240. Achieving this would require landing the most favorable combination of symbols and features, such as sticky wilds and multipliers, during the game's bonus rounds.

This win potential positions King of Thunder as a medium-volatility slot, offering a balanced mix of frequent smaller wins and the occasional opportunity for significant payouts.

How many paylines does King of Thunder have?

The King of Thunder slot by Fazi features 10 fixed paylines. This means that winning combinations can form across these 10 predetermined lines, enhancing the game's potential for consistent payouts. The fixed nature of the paylines ensures that all lines are active on every spin, providing players with multiple opportunities to land winning combinations.

This fixed payline structure is complemented by the game's other features, such as free spins and wild symbols, which can further increase the chances of securing wins. Whether you're a casual player or a seasoned enthusiast, the 10 fixed paylines in King of Thunder offer a balanced and engaging gameplay experience.

Does King of Thunder offer a Free Spin Round?

Yes, the King of Thunder slot by Fazi offers an engaging Free Spins feature that enhances the gameplay experience. This feature is activated by landing three or more Free Spins symbols anywhere on the reels. Once triggered, players are awarded 6 free spins with special enhancements to increase winning potential.

During the Free Spins round, the Zeus Wild symbol plays a pivotal role:

  • First 2 spins: Reels 1 and 5 are fully stacked with Zeus Wilds.

  • Next 2 spins: Zeus Wilds move to reels 2 and 4, remaining fully stacked.

  • Final 2 spins: Zeus Wilds merge into a single Wild on reel 3, which carries a 2x multiplier, significantly boosting potential payouts.

This dynamic movement of Wilds across the reels adds excitement and increases the chances of landing substantial wins during the Free Spins feature.

Can I play King of Thunder on my mobile device?

Yes, you can play the King of Thunder slot by Fazi on your mobile device. The game is fully optimized for both Android and iOS platforms, ensuring smooth performance and an immersive experience across various screen sizes. Whether you're using a smartphone or tablet, the mobile version retains all the features of the desktop game, including the Free Spins round, sticky wilds, and walking wilds. This mobile compatibility allows you to enjoy the game's dynamic gameplay and potential rewards on the go.

Is there a demo version available for King of Thunder?

Yes, the King of Thunder slot by Fazi is available in a demo version. This free-play mode lets you try out the game’s features, paylines, and bonus rounds without wagering real money. It’s a great way to familiarize yourself with the gameplay mechanics and volatility before playing with actual bets. The demo version works on both desktop and mobile devices, providing a full experience of the game’s visuals and sound.

What are the betting limits in King of Thunder?

The King of Thunder slot by Fazi offers a flexible betting range to accommodate various player preferences. The minimum bet is set at €0.10, allowing casual players to enjoy the game without significant financial commitment. For those seeking higher stakes, the maximum bet is €40.00 per spin, providing an opportunity for more substantial potential payouts. This range ensures that the game caters to both conservative and more adventurous betting styles.

What features does King of Thunder offer?

The King of Thunder slot by Fazi offers a rich array of features that enhance gameplay and increase winning potential. These include:

  • Free Spins: Triggered by landing three scatter symbols, awarding six free spins with dynamic wild reel placements. During the first two spins, reels 1 and 5 are fully stacked with wilds. In the next two spins, wilds shift to reels 2 and 4. In the final two spins, wilds merge into a single wild on reel 3, which carries a 2x multiplier.

  • Sticky Wilds: Wild symbols that remain in place during the free spins, increasing the chances of forming winning combinations.

  • Walking Wilds: Wild symbols that move across the reels, potentially creating new winning opportunities with each spin.

  • Wild Reel: A feature where an entire reel becomes wild, substituting for all regular symbols to form winning combinations.

  • Multiplier Wilds: Wild symbols that carry a multiplier, enhancing the value of any winning combination they are part of.

  • Gamble Feature: After a winning spin, players can choose to gamble their winnings by guessing the color of a hidden card. A correct guess doubles the winnings, while an incorrect guess results in losing the gambled amount.

These features combine to create an engaging and potentially rewarding gaming experience in King of Thunder.

Where can I play King of Thunder?

The King of Thunder slot by Fazi is widely available across many online platforms that offer Fazi games. You can find it on gaming sites that feature this provider's portfolio. Additionally, you can try the demo version to explore the game without any financial commitment. For the best experience, ensure the platform supports HTML5 for smooth gameplay on both desktop and mobile devices.

What is the volatility level of King of Thunder?

The volatility level of the King of Thunder slot by Fazi is medium. This means the game strikes a balance between the frequency and size of wins, offering players a mix of both smaller, more regular payouts and the chance for larger wins less often. Medium volatility slots are suitable for a wide range of players, providing engaging gameplay without extreme risk or reward swings.

What symbols should I look out for in King of Thunder?

In King of Thunder by Fazi, you should watch for the following key symbols:

  • Wild Symbol: This symbol substitutes for other symbols to help form winning combinations. It can also move around the reels and sometimes comes with multipliers, boosting your wins.

  • Scatter Symbol: Landing three or more scatter symbols triggers the Free Spins feature, unlocking bonus rounds and additional winning opportunities.

  • High-Value Themed Symbols: These include mythological elements like Zeus, the emperor, thunder, harp, horseshoe, and card suit icons, which pay out higher rewards.

These symbols play a central role in both standard gameplay and bonus features, making them important to spot during your spins.

Concluding Thoughts

King of Thunder by Fazi offers an engaging slot experience with its blend of mythological themes and dynamic gameplay features. The medium volatility ensures a balanced risk-reward ratio, appealing to a wide range of players. With a solid RTP of 96.21%, flexible betting options, and exciting bonus rounds like Free Spins with moving wilds and multipliers, the game provides both entertainment and good winning potential. Its compatibility across devices allows for seamless play whether on desktop or mobile. Overall, King of Thunder is a well-crafted slot that combines classic elements with modern mechanics to deliver an immersive and rewarding gaming experience.

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