Thunder Coins XXL: BoosterCells

Released on September 17, 2026, Thunder Coins XXL: BoosterCells is a video slot from Playson featuring a 5-reel by 3-row layout with 15 fixed paylines. The game combines traditional fruit machine symbols like 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 hold their values on the cells where they land during the Bonus Game. If another coin lands on the same cell, it absorbs the existing value, causing the cell's worth to increase throughout the round. Thunder Coin symbols can only appear on reel 2, where they remain fixed for the Bonus Game and gather all visible coin values on the grid; these Thunder Coins can also randomly enhance multiple stored values. The game includes four fixed jackpots—Mini, Minor, Major, and Grand—that can be collected through the Thunder Feature as Jackpot Coins. Players have two options to Buy Bonus Games, including a Super Buy that ensures three active Thunder Coins at the beginning. Additional Extra Bet options are available: Double Chance increases the likelihood of triggering the Bonus Game, while Thunder Spin triples that chance and guarantees one Thunder Coin with every spin. During the base game, the Pile of Gold Feature may activate when regular Coins land, potentially dropping enough Coins or Thunder Coins to trigger the Bonus Game. The Bonus Game itself operates as a Hold and Win style round 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 play it for real money.