Book of Aztec King: the book formula moves to the jungle

From pharaohs to feathered crowns

Book slots are usually set in Egypt. Book of Aztec King swaps sandstone tombs for jungle pyramids and gold masks, and puts Pragmatic Play's Aztec ruler in the role the pharaoh normally plays. The underlying idea is the one book fans know: a single book symbol that substitutes on the reels and, landed in numbers, opens free spins.

The appeal of the format lies in the bonus. A symbol is selected to expand during the free spins, and when it lands on enough reels it stretches to fill them top to bottom. The king expanding across the screen is the result to hope for; a low card symbol doing the same is a smaller, but still welcome, return.

How it compares with Aztec King

Despite the shared name and character, this isn't a reskin of Aztec King. The two are separate releases with different reels and features, and they suit different moods: the book version is built around waiting for one feature, while Aztec King has its own approach. Playing both demos at the same stake is the fastest way to decide which you prefer.

Testing Book of Aztec King in free play

The demo gives you 1,000 virtual credits with no sign-up and no download. Book-style games are swingy, so plan on 150 to 200 spins at a fixed stake, the equivalent of £0.50, before forming a view. Note how often the books arrive and how much the expanding symbol tends to pay when it shows up. The paytable inside the game confirms the line count and spin awards.

There's no bonus buy here, so the free spins are reached only through the scatters. When you've seen enough, the same game is available for real money at the casinos listed below.