The slot does not have a wild symbol.
The scatter symbol is the golden shield and there are two bonus symbols, a gem drop and a gem splash.
The Gem Drops are overlay symbols that can appear on top of any symbol or above the reels with each spin. They will then drop down the reels one row at a time with each subsequent spin until they fall off the bottom. Each of these symbols comes with a cash value attached, which starts at 1 times the bet and can be as large as 100 times the bet. If the Gem Drop overlay symbol covers a Gem Splash bonus symbol, then you will trigger the Gem Splash feature and win the cash prize.
The free spins begin if you land three or more scatter symbols anywhere on the reels. To begin with, you win six free spin. All of the Gem Drop symbols from the triggering spin are removed from the reels and during the free spins they can then land as special 2x2, 3x3 and even 4x4 symbols. The prizes shown on these large Gem Drop symbols are awarded once for every Gem Splash symbol that lands underneath it. The prizes on the large symbols are worth between 3 and 20 times the bet. Furthermore, to help you win more, the Gem Splash symbols can land stacked on all five reels during the free spins. Best of all, you can retrigger the free spins indefinitely.
The Gem Splash Jackpot feature can be triggered at random on any spin. A large gemstone will appear on screen and it can award a cash prize of 10, 15, 20, 30, 50 or 100 times the bet. It could also award three progressive jackpots, the Minor, Major and Grand. The Minor and Major jackpots have upper limits to them, while there is no limit to how large the Grand can grow.
In addition to the jackpot prizes won through the bonus feature, the king offers the top payout of 180x when five land along a payline. The horse can payout up to 120x, the crown up to 90x, and the ring up to 60x. All four of the royal symbols can payout up to 30x.