Mining Rush

Set deep underground, connect clusters of 5+ matching symbols on the 7×7 grid of Mining Rush. 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 turns 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. Land 3-7 bonus symbols to trigger the feature with 8-20 free spins. Each bonus symbol turns into a random nugget and remains sticky for the entire feature. Further bonus symbols that land at the same time as a winning tumble also transform into sticky nuggets and award two additional free spins.