Microgaming joins forces with Triple Edge studios to bring you Book of Oz Lock 'N Spin online slot – the sequel to the popular Book of Oz slot. It is based loosely on the famous Wizard of Oz story and the game sports a fantasy feel, with the background representing Emerald City. The main feature of this slot is the Lock ‘N Spin feature, where you can respin up to 4 reels to get winning combinations. There’s also a free spins feature where you can change the special expanding symbol for bigger rewards. Read more about how this works below.

Game Symbols

A, K, Q and J card suits are the standard symbols
The symbols depicting 3 different potions and a character wearing a top hat represent the higher value symbols, the latter of which paying the most at 1x, 10x, 100x or 500x your stake for a combination of 2, 3, 4, or 5 respectively.
The book of spells symbol acts both as a wild and a scatter symbol. That means it will replace all other symbols to help you complete a winning line.

Bonus Features

Hyperspins Lock 'n spin

After completing a spin in the base game, you can decide to lock up to 4 reels for a chance at completing a win.

For each real you choose to lock there is a cost which is displayed below each individual one. Note that the locked reels are only available during the base game.

Free Spins

3+ book symbols will activate the free spins round. Depending on the number of scatters that triggered the bonus, you will get the following:

Three books = 10 free spins plus a scatter prize of 2x your bet
Four books = 12 free spins plus a scatter prize of 20x your bet
Five books = 25 free spins plus a scatter prize of 200x your bet

At the beginning of this feature, a special symbol is randomly chosen to be an expanding symbol. You also get a second chance feature where you can choose to keep the symbol or reshuffle for a different one. The symbol you select will expand to cover a whole reel if a winning combo can be achieved. This feature cans also be re-triggered and there is the chance to win a maximum of 5,000x your bet.

Our Verdict

The main difference between Book of Oz Lock ‘n Spin and the original Book of Oz slot is the Lock ‘n Spin feature. This makes the slot highly volatile, giving you a chance to pocket wins up to 5000x your stake on every spin or free spin. Your winning chances are doubled in the free spins rounds as filling the reels with high paying symbols increase if chosen as the special symbol.