Thunder Coins XXL: BoosterCells

Released on September 17, 2026, Thunder Coins XXL: BoosterCells is a video slot from Playson featuring a grid of 5 reels and 3 rows, along with 15 fixed paylines. The game combines traditional fruit machine symbols such as cherries, plums, watermelons, bells, BARs, and red 7s with a dramatic thunderstorm backdrop and luminous gold coins. A standout element of the game is the BoosterCells Feature, which allows collected coins to maintain their values on the cells they occupy during the Bonus Game. If another coin lands on the same cell, it absorbs the existing value, increasing the total for that cell throughout the round. Thunder Coin symbols can only appear on reel 2, where they remain fixed during the Bonus Game, gathering all visible coin values from the grid; these Thunder Coins can also randomly enhance multiple stored values. Players can encounter four fixed jackpots—Mini, Minor, Major, and Grand—represented by Jackpot Coins collected via the Thunder Feature. There are two options to buy into the Bonus Game, including a Super Buy that ensures three active Thunder Coins at the beginning. Extra Bet options are available, such as Double Chance, which increases the likelihood of triggering the Bonus Game, and Thunder Spin, which triples that chance and guarantees a Thunder Coin with each spin. Additionally, during the base game, the Pile of Gold Feature may activate when regular Coins land, dropping enough Coins or Thunder Coins to either trigger or assist in activating the Bonus Game. The Bonus Game itself follows a Hold and Win format with respins, starting with three respins, and each new Coin or Thunder Coin resets the respin counter. At the conclusion of the respins, all collected and stored values are summed up for the Total Win.

You can try it for free in demo mode or play it for real money.