Book of Oz: Lock N Spin Slot Review

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High RTP TOP slot provider Fantastic graphic 6-digits jackpot
Book of Oz: Lock N Spin Slot
Release Sept 2019
Provider Microgaming
Max. RTP 96.60%
Reels 5
Paylines/Ways 10
Betting Range (€/$) 0.10 - 25
Max. Payout 125,000
Progressive Jackpot No
Megaways No

A new game is set to launch in Microgaming’s collection, and once again we’re looking at a slot machine which is designed by a collaborating independent studio. Triple Edge Studios created the sequel for the popular Book of Oz slot machine, adding some pay to use features, but little else.

The slot will give you 5 reels to spin, 10 lines to place wagers on, along with just as many opportunities to win and form combinations. The rewards will reach a relatively high 5,000x, or up to $125,000. The list of features include the newly added Hyperspins (paid locked reels), along with free spins, scatters and special expanding symbols. I did like the 96.60% RTP that’s announced here, it’s a high enough level to make the game stand out a bit.

Betting and Prizes

When setting up the bet in this game, you select the total amount. You can spin the reels with just $0.10 each round ($0.01 per line), but those with bigger budgets can choose to wager up to $25 per spin ($2.50 per line).

The game has high volatility, so the fact that it manages to deliver big wins is not a surprise. A 5,000x top payout is mentioned, which could get you paid up to $125,000, an excellent return when considering the wagers which are possible. Getting a screen full of matching symbols looks like a fair possibility, thanks to the free spins and their special symbols, but this remains a High volatility option, so don’t consider it likely.

It might not be your own experience with the game, but the RTP is at 96.60%, a decent amount over the industry average, so that’s one more advantage that the game gets.

Book of Oz Lock ‘N Spin Slot Features

Now, when it comes to actual features, for the most part you get the same options as in the original Book of Oz. Certain improvements have been made, in the form of a Second Chance and the Hyperspins.

The Hyperspin will allow you to pay money, in order to lock certain reels and re-spin others. Lock N Spin will allow for a maximum of four reels to be locked, while the remaining reel(s) re-spins. The price for this feature varies, so don’t expect a fixed amount, it all depends on the potential rewards of the respin.

As usual, it’s during the free spins that the magic will happen. Triggered via Book of Oz scatters, 3 to 5 times showing anywhere in view, the feature will consist of 10 to 25 free spins. As with most Book style slots, a special symbol is chosen, to get the ability to expand on the reels, whenever it appears.

Second Chance is the other major feature which is introduced. This allows you to choose another expanding symbol, if the first one you get isn’t a good one. It could result in a better expanding symbol, of higher value, but you could get a lower one as well, since it’s all random.

Theme & Design

The theme of the slot remains connected to the Wizard of Oz, while the graphics are mostly identical to those from the original Book of Oz slot. They didn’t improve much here, and the look of the slot remains fairly boring for the most part. The symbols range from elegant Royals, to various potion bottles which have card-suit inspired corks.


Book of Oz: Lock N Spin has some interesting additions to its list of features, though they don’t necessarily add much to the gameplay and profitability of the slot. It’s a decent choice, for those that loved the original as well.

Book of Oz: Lock N Spin Slot Machine FAQ

❓ What is a key options of the Book of Oz: Lock N Spin slot?

✔️ Slot developer: Microgaming , Max. RTP: 96.60% , Layout: 5x10 , Betting Range (€/$): 0.10 - 25 , Max Payout: 125,000 .

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✔️ Yes, it's absolutely mobile-friendly!

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