Step into a kingdom where classic fruit-inspired gameplay meets modern feature-driven excitement with 40 Extra Crown Coin Boost. Combining the timeless elegance of the beloved Extra Crown series with the innovative Coin Boost mechanics, this latest release delivers a regal experience where every spin can unlock new layers of anticipation and reward.
Set across a dynamic 5x4 grid, the game surrounds players with royal symbols, vibrant visuals, and a lively atmosphere worthy of a king's court. At the heart of the action lies the Coin Boost Feature, which can activate whenever coins appear during the base game, triggering five Free Spins filled with evolving cash coins and jackpot coins.
As the feature progresses, Bronze Coins can be upgraded through Silver and Gold, ultimately reaching the highest, Diamond level. Every upgrade builds anticipation, creating a thrilling journey toward an exciting finale where each newly enhanced coin adds another layer of possibility. Adding to the unpredictability, the Mystery Trigger may randomly release coins onto the reels and instantly activate the Coin Boost Feature, ensuring that every spin has the potential to surprise.
The Wild symbol helps complete winning combinations, while the Scatter symbol pays anywhere on the reels, bringing even more energy to every round. Players looking for immediate access to the action can also take advantage of the Buy Bonus, which provides a direct route to the game's signature feature without waiting for the perfect moment to arrive naturally.
The royal experience is enriched with a four-level static jackpot, featuring Mini, Minor, Major, and Grand jackpots that remain available throughout gameplay.
With its elegant royal theme, evolving Coin Boost mechanics, and feature-packed gameplay, 40 Extra Crown Coin Boost brings a fresh dimension to one of Amusnet's most recognisable game families. Every spin is another step toward the crown, where upgraded coins, royal jackpots, and thrilling surprises combine to create a majestic gaming adventure.

Coin Boost
The feature can be triggered when at least one coin appears on the screen during the base game. It starts with all Coin symbols that have already triggered it and five initial Free Spins.
When the Upgrade lands on an already existing coin, it upgrades it to the next-level coin. If the Upgrade lands on a maximum-level coin, a random adjacent coin will be upgraded instead of it. If all coins on the screen are at the maximum level and there are still free positions, a random position will be filled with a coin at the lowest level (Bronze). If all coins on the screen are at the maximum level and there are no free positions, no further upgrades will take place.
Special Coins and Multipliers
All Jackpot Coins (Mini, Minor, Major, Grand) can land during the base game and the Coin Boost Feature. Also, a special Plus Spins can land on the screen during the Coin Boost Feature. It first awards additional spins and then transforms to a first-level cash coin (a bronze coin). Multiple Plus Spins Coins can also land during the feature. In case the whole grid is filled during the feature, all winnings are multiplied by x2!
Expanding Wild
The Crown Wild symbol appears on the second, third, and fourth reel and substitutes for all symbols on the same reel except for the Dollar and the Star Scatter symbols.
Buy Bonus
The feature enables the player to buy the Coin Boost feature guarantees that at least one coin will land and trigger the feature.
Gamble
Play the game and multiply your winnings through the Gambling feature!
Jackpot Cards
The Jackpot Cards bonus game is triggered at random during the gameplay to allow players to win impressive jackpots.