Random Wilds are base-game events in Golden Dragon Deluxe where multiple Wild symbols appear on the reels simultaneously without warning. The Boost Symbol modifies both Hold and Ring and Free Spins.
How Random Wilds work
At random points during base-game spins, the game triggers a Random Wild event. Several Dragon Wild symbols land on the reels in addition to the normal outcome of that spin. These Wilds substitute for all regular pay symbols and can cover multiple reels at once.
The Wild symbol also stacks in groups of four on individual reels during normal play. Random Wilds and stacked wilds are separate events — stacked wilds appear on regular reel stops, while Random Wilds are overlaid on top of a spin result.
How often do they appear?
Zillion Games has not published the exact frequency of Random Wild events. In practice, they appear often enough to generate regular base-game surges but not so frequently that they trivialize the base game. The 2.98% hit rate reflects the full game including these events.
The Boost Symbol — two effects
The Boost Symbol has a different function depending on where it appears. In the base game, landing 5 Bonus symbols plus 1 Boost Symbol triggers Hold and Ring, bypassing the standard requirement for 6 Bonus symbols. This is the only way to reach Hold and Ring with five coins rather than six.
In Free Spins, the Boost Symbol amplifies the Walking Wild's impact when both appear in the same spin. It also enables retriggers: 3+ Scatters during Free Spins (with a Boost in play) reset the feature.
Dragon Wild stacks
The Dragon Wild stacks up to four symbols high on a single reel. A full-reel Wild stack effectively turns that reel into a complete Wild, guaranteeing involvement in every payline running through it. In combination with Random Wilds appearing elsewhere, this can produce unexpectedly large base-game wins.