Sky of Thunder

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Rules and Gameplay

The Sky of Thunder slot game is an invigorating online casino game developed by Stakelogic, inspired by the powerful Greek god Zeus. It features a traditional layout with 5 reels, 4 rows, and 40 fixed paylines, meaning players must bet on all lines each spin. Gameplay begins with a minimum bet of $0.40, going up to a maximum of $40 per spin, allowing flexibility for both casual players and high rollers. The slot boasts an RTP (Return to Player) of 96%, offering a balanced risk-reward ratio suitable for various gambling styles.

Bonus Features

The game is rich with engaging bonus features designed to enhance the thrill and potential winnings. Here are the most notable:

  • Free Spins: Triggered by landing a screen full of Zeus symbols, granting 15 free spins. This feature can be retriggered up to nine times during the round.
  • Lock and Spin Feature: Activated when any of the four high-value symbols (Pegasus, Griffin, Bull, Alms Plate) or their double versions land stacked on the first reel. All matching symbols on other reels then lock in place, and respins continue until no new matching symbols appear.


Sky of Thunder includes a variety of symbols that align with its Greek mythology theme, enhanced by stunning graphics. Here’s a breakdown of the main symbols:

  • Standard Symbols: A, K, Q, J, and 10, appearing as clouds.
  • Themed Symbols: Pegasus, Griffin, Bull, and Alms Plates, each available as single and double symbols.
  • Special Symbols: The Olive Leaf Wild substitutes for other symbols to create winning combinations, and the Zeus Bonus symbol triggers the free spins round.


The payouts in Sky of Thunder are structured to reward combinations of both standard and themed symbols, with special emphasis on the latter due to their higher values. Below is a payout table illustrating the coin rewards for symbol combinations:

Symbol 3 Symbols 4 Symbols 5 Symbols
Pegasus 50 100 200
Griffin 40 85 175
Bull 30 75 150


The game features 40 fixed paylines, which offer players numerous ways to win. To form a winning combination, symbols must appear in succession from the leftmost reel to the right across any of the paylines. This structure ensures a variety of winning combinations, keeping the gameplay exciting and dynamic.

Pros & Cons

Pros Cons
Engaging Greek mythology theme with high-quality 3D graphics Limited betting range may not appeal to all high rollers
Feature-rich gameplay with Free Spins and Lock and Spin bonuses No progressive jackpot
Mobile-optimized for gameplay across all devices Gameplay may be considered too complex for beginners

Minimum and Maximum Bet

The Sky of Thunder slot game accommodates a variety of betting preferences with a minimum bet set at $0.40 and a maximum bet capped at $40 per spin. This betting range makes it accessible for casual players while still offering substantial betting options for more serious gamblers looking to make larger wagers.

Game Jackpot

While Sky of Thunder does not offer a progressive jackpot, it provides a top prize of up to 500 coins through its base game and bonus features. Additionally, the game boasts a Return to Player (RTP) rate of 96% and has a low to medium variance. This setup indicates a balance between the frequency of winning spins and the payout amounts, making it an attractive option for both conservative players and those looking for occasional larger wins.

About Provider

Stakelogic is a reputable developer known for its innovative approach to creating online slot games. It is a subsidiary of the larger gaming company Novomatic, which has established a significant presence in the European betting market. Stakelogic is celebrated for integrating advanced graphical interfaces and animations with engaging gameplay mechanics, focusing on mobile-optimized solutions to meet the demands of modern players across platforms.

How To Play

  • Set Your Bet: Adjust the bet size using the +/- controls to set your wager from $0.40 to $40 per spin.
  • Spin the Reels: Press the spin button to start the game and watch the reels rotate.
  • Watch for Winning Combinations: Match symbols from left to right across the 40 fixed paylines to form winning combinations.
  • Activate Bonus Features: Land full reels of special symbols (like Zeus or Pegasus) to trigger bonus features such as Free Spins or the Lock and Spin bonus.
  • Utilize Auto Play: Set up the auto play feature for a selected number of spins if you prefer continuous play without manual intervention.
  • Collect Payouts: Wins are automatically added to your balance, and bonus features provide additional opportunities to increase winnings.


Sky of Thunder is a well-crafted slot game from Stakelogic that offers a thrilling experience through its vivid depiction of Greek mythology and its innovative bonus features. With its broad appeal to both new and experienced players, its balanced RTP and variance, and the high-quality execution by a renowned provider, this game stands out in the crowded market of online slots. The game’s few downsides, such as the lack of a progressive jackpot and its potentially complex features for newcomers, are minor when compared to the overall engaging and rewarding gameplay it offers.