Diamonds XXL Multiboost: Hold & Win expands the Diamonds XXL series with a new 3×5-reel slot built around its Multiboost symbol, which can multiply collected Bonus and Jackpot values by up to x20.
The game features 15 fixed paylines and combines a Hold & Win bonus with several ways to boost payouts, including four fixed jackpots and three different bonus modes.
Multiboost Can Multiply Collected Values
The main feature revolves around the Multiboost symbol. When it lands on the middle reel, it collects all visible Bonus and Jackpot values and applies a random multiplier of up to x20.
Multiboost symbols remain sticky during the Bonus Game and can trigger repeatedly, giving players further opportunities to increase the combined value.
A separate Boost symbol also collects all visible Bonus and Jackpot values, but without the additional multiplier.
Three Ways to Enter the Bonus
The Hold & Win feature begins with three respins. The counter resets whenever a new Bonus, Jackpot, Boost or Multiboost symbol lands, while Boost and Multiboost symbols remain locked during the feature.
The game offers three bonus modes with different entry conditions. The standard Bonus Game requires 75 times the bet, while the Super Bonus Game costs 175 times the bet and guarantees both Boost and Multiboost symbols.
The Multiboost Bonus Game has a 250x bet cost and starts with two Multiboost symbols already in play. The feature then runs exclusively with Multiboost symbols.
Four Jackpots and Extra Bet Options
Diamonds XXL Multiboost includes Mini, Minor, Major and Grand jackpots, with the Grand reaching up to 1,000x the bet.
Players can also choose between two additional bet options. Double Chance costs 1.5x the regular stake and doubles the chance of triggering the Bonus Game, while Boosted Spin costs 5x the bet and guarantees either a Boost or Multiboost symbol on every spin.
The game also includes an additional bonus trigger that can activate the feature even when the triggering spin does not produce a line win, alongside three separate Bonus Buy entry points.
With its sticky Multiboost symbols, x20 multiplier potential and multiple versions of the Hold & Win feature, Diamonds XXL Multiboost builds the established gem-themed series around a more feature-heavy bonus structure.