King of Thunder

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Rules and Gameplay

King of Thunder is an engaging slot game set in the backdrop of Ancient Greece, inviting players to join Zeus in a quest for thundering wins. This 5-reel, 10-payline game by Fazi Interactive is accessible for both fun and real money gameplay. Players can set their bets using the Bet +/- controls, initiate spins manually or opt for automated spins via the Auto feature. The Thunder option increases the reel spin speed, enhancing the game’s dynamism. Additionally, players can engage in a Risk Game after scoring a win, providing a chance to double their winnings or collect them as is.

Bonus Features

King of Thunder is replete with captivating bonus features designed to enhance the player’s gaming experience:

  • Free Spins: Triggered by landing three or more Free Spins symbols, players are awarded 6 spins with a Full Wild Reel, where Zeus expands, creating dynamic win opportunities across the reels.
  • Risk Game: After any win, players can choose to gamble their winnings, selecting between Red or Black to potentially double their win or risk losing it.
  • Jackpots: The game features three progressive jackpots – Diamond, Gold, and Platinum – which can be won randomly during gameplay, increasing in value with each bet placed.


The symbols in King of Thunder are meticulously designed, echoing the game’s Ancient Greek theme:

  • Zeus (Wild): Substitutes for all symbols except the Free Spins symbol, aiding in forming winning combinations.
  • Free Spins Symbol: Triggers the Free Spins feature when three or more are landed.
  • Regular symbols include 10, J, Q, K, A, Harp, Wreath, Vase, Pegasus, and Goddess, each offering various payout levels.


The King of Thunder slot offers a variety of payout opportunities, with the game’s RTP set at 96.21%. Here’s a brief overview of the payout structure:

Symbol 3x 4x 5x
10, J, Q 1x 2x 7.5x
K, A 1.5x 3x 10x
Harp, Wreath, Vase 3x 6x 25x
Pegasus 6x 15x 60x
Goddess 15x 30x 100x


King of Thunder features 10 fixed paylines, providing various ways to win. Winning combinations must start from the leftmost reel and align with one of the active paylines. The game pays in a classical left-to-right manner on adjacent cells, enhancing the player’s chances for achieving winning sequences across the reels.

Pros & Cons

Pros Cons
Innovative Free Spins feature with moving wilds Limited paylines (only 10)
Three progressive jackpots Graphics may not appeal to all players
Engaging Greek mythology theme Gameplay may be complex for beginners

Minimum and Maximum Bet

In King of Thunder, players have a wide range of betting options, accommodating various types of gamers. The minimum bet starts at $0.10, making it accessible for casual players or those who prefer to wager cautiously. On the other end, the maximum bet is capped at $40 per spin, offering an opportunity for high rollers to chase larger wins. This range ensures that the game is versatile and can cater to different betting preferences and strategies.

Game Jackpot

The King of Thunder slot offers an exciting prospect with its three progressive jackpots: Diamond, Gold, and Platinum. These jackpots add a layer of excitement as they can be triggered randomly on any spin, increasing in value with each bet placed. Moreover, the game boasts an RTP (Return to Player) of 96.21% and is classified with medium variance. This balance provides players with a fair chance of winning while still offering significant payout potential through the jackpots and other game features.

About Provider

Fazi Interactive, the provider behind King of Thunder, is a respected entity in the gaming industry, known for its innovative and engaging slot games. Established in 1991 in Serbia, Fazi has expanded its reach globally, offering a diverse portfolio of games that resonate with players worldwide. Their commitment to quality, coupled with a focus on technological advancement, positions Fazi as a prominent player in the gaming market, consistently delivering experiences that players seek and enjoy.

How To Play

  • Begin by selecting a Fazi Interactive casino and launching the King of Thunder slot.
  • Adjust your bet size using the “+” and “-” buttons to increase or decrease your wager according to your preference.
  • Engage the reels by pressing the Spin button or opt for the Auto feature to automate spins based on your set criteria.
  • Utilize the Thunder option to accelerate the spin speed, adding an element of excitement to your gameplay.
  • Watch for special symbols like Zeus (Wild) and Free Spins to unlock the game’s bonus features and enhance your winning potential.
  • After a winning combination, decide whether to collect your winnings or enter the Risk Game to potentially double your reward.


King of Thunder stands out in the realm of online slots with its unique blend of engaging gameplay, innovative features, and thematic depth rooted in Greek mythology. The game’s adjustable betting options, coupled with the thrill of progressive jackpots, provide a comprehensive gaming experience that caters to a wide audience. Fazi Interactive continues to impress with its dedication to quality and innovation, making King of Thunder a testament to their prowess in the gaming industry. Whether you’re a casual player or a high roller, this slot offers a compelling mix of entertainment, risk, and reward.