The Book of Ra Deluxe online slot game follows a familiar theme of such casino amusements, i.e. the exploration of ancient Egyptian ruins by an adventuring archaeologist type. Bet between 4¢ and $10 per across 10 paylines.
As has been standard since at least the days when The Ark of the Covenant was a new idea, three or more scatters (here, the mysterious-looking book) trigger the free spins round. The expanding wild will be randomly selected once free spins begin and thenceforth expands to fill the entire reel in which it lands.