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Author Lisa Michaels

Book of Oz Lock ‘N Spin Slot

Return to Player96.35%
Book of Oz Lock n Spin

The Land of Oz has some treasures for you in Microgaming and Triple Edge Studio’s Book of Oz Lock ‘n Spin Slot Game. The glowing green pillars of the Emerald Palace are the backdrop for gold and purple reels where mysterious potions and a dashing Wizard of Oz show up as symbols. A unique twist on the Hyperspins mechanic makes this game as enjoyable as Fortress Charge, and the $125k top prize from a single spin means just one bet could have a fairytale ending.

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Game Data

Software providerSoftware:


RTPRelease Date:


Reels amountReels:


Slot VolatilityVolatility:


Slot Game TypeGame type:

Video Slots

Slot PaylinesPaylines:


Min coin betMin coin:


Max coin betMax coin:


Free spins offeredFree spins:


Wild SymbolsWild symbol:


Progressive jackpotProgressive:




Our Opinion:

A little difference goes a long way, and you will see that when you launch this game and see for yourself how much impact the ability to lock a few reels can make. Like the original, this game has some great graphics and animations, and the gameplay experience is even more exciting. If you want more jackpot-packed tales from the land of Oz, play White Rabbit Megaways and Sisters of Oz WowPot today.

RTP and Variance

At 96.35%, the RTP is slightly above the industry average, and the high volatility means you can expect bigger wins but less often.

How to Play Book of Oz Lock ‘n Spin

Spin the reels, autoplay, change your bet or open the paytable with the controls below the reels.

Boz start screen

A unique menu lets you choose how often the game will give you helpful hints and tips.

Bonus Features


This is where things get interesting. While the original Book of Oz allowed you to re-spin individual reels for a price in the base game, Book of Oz Lock 'N Spin lets you lock up to 4 full reels to complete winning combinations or trigger the bonus. Remember that the more potential a reel has to deliver you a big win, the more it will cost to lock.

Boz locked reels
Lock the reels with the symbols you want to keep so you can complete combos or trigger the bonus.
Free Spins

When you land 3, 4 or 5 book symbols anywhere on the reels, you will get 10, 12, or 25 spins, respectively.

Boz scatter

Before the round starts, a random special expanding symbol will be chosen that will expand to cover the reels it lands on until the feature ends. The unique Second Chance feature lets you reshuffle the special symbol if you think you deserve a better one.

Boz free spins

Game Symbols

Boz paytable 1
10, J, and Q pay 0.5x your bet for five on a payline, while A and K pay 0.75x.
Boz paytable 2
The pyramid perfume bottle and the perfume bottle with a critical pay 3.75x your stake for five on a payline, the potion of courage pays 10x, and the Wizard pays 25x.

Free Play or Demo Play

The advanced Hyperspins feature in this game can mean you are placing bets many times higher than your original wager. You could make costly mistakes if you don’t play the free demos first. You can practice your reel-locking skills with free credits while keeping your casino balance safe.

My Book of Oz Lock ‘N Spin 25 Free Spins Experience

I locked into wild symbols and chased the blue elixir for a 5 x combination paying out 2000 credits.

I started by setting the bet amount to 10 credits, I did this intentionally knowing that in a lock and spin slot, things can quickly get expensive. In the start, I rolled a few reels taking my time to choose which reels I'd like to lock. As you lock reals the price increases on the probability of the amount you could win. As reels were locked the cost per spin quickly got to 283 credits per spins. I locked into wild symbols and chased the blue elixir for a 5 x combination paying out 2000 credits, Which I hit! On top of that, I hit 10 free spins eventually paying out 2340 credits.

  • Spins can quickly get expensive.
  • Did not end the 25 spins in profit.

I think a key takeaway for this one is choosing your bet size correctly if you want to make a substantial profit. Focus on the Wizard of Oz symbol and lock those in because they will pay the most.

Author Lisa Michaels

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Lisa started off as a croupier at her local casino. However she found her niche in writing and has subsequently used her real-world gambling experiences to help produce and review the many online slots that are released monthly. Lisa also contributes to keeping you up to date with Canadian newsworthy stories.

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