Loosely based on the novels by Frank L Baum, the Book of Oz slot centres around the mysterious Wizard of Oz, and takes you on a fantasy adventure to an emerald city filled with hidden treasure. The Microgaming slot, created in partnership with Triple Edge Studios, features five reels, expanding symbols, re-spins and cool free spins where you could win up to 5000x your original bet.
You have the option to respin any reel of your choice at a small extra cost. Take note however that the smaller the potential a reel has to offer, the less it will cost you to take a respin – so choose wisely! If you hit a high paying symbol on reels 1 and 3 for example, it would make perfect sense to pay that little bit extra for a respin on reel 2, and hopefully collect 3-of-a-kind.
This feature yields the highest rewards, and the best part is that it can be re-triggered infinitely! Free spins are awarded whenever 3, 4, or 5 scatter symbols (the Book of Oz) appear anywhere on the reels. 3 scatters award 10 free spins, 4 scatters award 12 free spins, and 5 scatters award 25 free spins. In addition, a special symbol is randomly selected at the start of the feature. This symbol will expand to fill all the reel spots every time it appears.
Book of Oz is an entertaining slot despite its simple features. The excitement really kicks in when high-paying expanding symbols come into play during the free spins rounds. The respin function is valuable, but it requires some strategic play, and for you to have a good handle on your bankroll to really benefit from it in the long run.