Ark of Ra Slot Machine

Ark of Ra is an Egyptian-themed slot machine that features the god Ra. The Ark of Ra slot machine has five reels and 20 paylines for forming winning combinations. Winnings in the Ark of Ra slot are produced from left to right when three or more identical symbols appear on the prize line. The bonus round is the standout feature, with three settings for volatility, amount of spins, and guaranteed full wild reels. The premium symbols pay 2.5 to 15 times your stake for 5 of a kind wins, while the two top-tier symbols can appear in 1x1, 1x2, and 1x3 sizes. The Wild symbol replaces ordinary pay symbols to help complete winnings, and it pays 50x your stake if five appear on a payline. A Coin Collect Metre appears above each reel, with two coin slots per reel. Coin symbols that land accumulate in the metre, and a full metre results in a complete wild reel. The Wild Reel is active for two spins in the normal game, and there is no coin collection system in the bonus round. 

When three scatter symbols appear on reels 1, 3, and 5, the Bonus Round is triggered, and you are awarded a 2x scatter reward right away. There are three bonus round possibilities available:
High volatility - each spin triggers two free spins and three guaranteed wild reels.
Medium volatility: 8 free spins and two guaranteed wild reels every spin.
Low volatility: 25 free spins and one guaranteed wild reel per spin.
The Wild Reels can appear in a variety of positions within a single spin, and scatters count even if they appear beneath the wild reels. You can retrigger the feature by landing three scatters, which awards you the same number of extra spins as the option you selected in the first place.