The queen herself is the wild symbol, she can land on reels two, three and four and will substitute for all the other symbols except the scatter. Furthermore, she can also trigger a bonus feature.
The sunken temple is the scatter symbol and in addition to offering scatter payouts of up to 100x the total bet, it can also trigger a bonus game.
If you land the queen wild symbol on reels two, three and four simultaneously the Pearl Bonus begins. You will be shown nine randomly picked oysters each of which will contain a bronze, silver or gold pearl. The pearls are worth different amounts and you will win the total of those on display.
If you land three of the temple scatter symbols the Atlantis Temple Bonus begins. First you are shown a stone wall that is four levels high. Starting at the bottom level you need to pick stones to reveal your prize. The first row contains the number of free spins, the second contains multipliers, the third contains extra scatter symbols and the fourth contains extra wilds. When you pick a stone it can award you a prize and either all of the prizes in the picked column, the chance to pick in the row above, the chance to pick in the same row or it can end the game and the free spins begin. During the free spins landing Poseidon on the third reel awards three more free spins.
Atlantis Queen offers a top payout of 5,000x for landing five Poseidon symbols across a payline. The treasure chest can payout up to 1,000x, the shield can payout up to 350x and the fish can both payout up to 250x.