Who is the Queen of Queens? Is it Queen Elizabeth of England? Queen Victoria? Joan of Arc? These are all wonderfully good guesses, but in the world of slots there is another female that claims the crown. The Queen of Queens when it comes to online casino play is without doubt the Pharaoh of Egypt, Cleopatra. Cleopatra and Ancient Egypt are a favoured theme of casino slot developers around the world and it certainly shows. Habanero usually brings something different to the table when it comes to its online slot releases, with Queen of Queens appearing to keep that trend alive.