Pragmatic Play
Set deep underground, connect clusters of 5+ matching symbols on the 7×7 grid to unearth maximum wins of 10,000x. In the base game, when a dynamite-themed bonus symbol is visible at the same time as a winning combination anywhere on-screen, the symbol turn into a nugget – either bronze, silver, gold, or diamond. These nuggets remain on the reels for the remainder of the tumbling sequence, randomly awarding a win from a range of values depending on its type. Each time it pays, the nugget also collects a point, with three points upgrading the nugget’s type unless it is already diamond.