Lucky Stamps

A Growth Multiplier is a system, primarily used in free spins bonus rounds, where the multiplier value automatically 'grows' based on the passage of time or the achievement of specific conditions. Its most distinct characteristic, unlike an 'Accumulating Multiplier' that increases with each win, is that the multiplier advances to the next level when a specific condition is met, regardless of whether a win occurred. This provides a guaranteed expectation that rewards will definitely increase towards the end of the round.

Hold and Respin, or 'Hold & Win', is one of the most popular core bonus game mechanics in modern slots. The essence of this feature, unlike traditional free spins, is to 'Hold' bonus symbols on the reels and 'Respin' the remaining empty spaces to fill up the screen. This system was popularized worldwide through 'Money Train 2's' 'Money Cart Bonus' and is the foundation for numerous developer-specific brand features like Wazdan's 'Hold the Jackpot™' and Playtech's 'Fire Blaze™'.