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Sisters of Oz: Wowpot

RTP 92%
Play Microgaming Slots
Reels 5
Paylines 20
Min bet size 0.20
Max bet size 300
RTP 96.5
Wild symbols Yes
Free spins Yes
Bonus Yes
Jackpot Yes

Sisters of Oz: Wowpot Slot Review

Released September 2020

The Sisters of Oz: Wowpot slot game can be found at Microgaming casinos. Microgaming as a standard now publish the house edge information of all their slots at any online casino that holds a UKGC license (this is a requirement for all UKGC licensed casinos). As such we can say that the House Edge of Book of Sisters if Oz: Wowpot is 8%. When playing at any venue that does not hold a UKGC license and does not specifically publish the Return to Player information for their game, this information should be used as a guideline only as we cannot confirm whether or not this game is configurable.


The theme of Sister of Oz: Wowpot is fantasy. We all know the story of the Wizard of Oz, but what do we know about sisters, about the witches that come from the 4 corners of Oz? This slot brings you the wicked witches of the north, south, east and west, in a modern and glamorous design.

Sisters of Oz: Wowpot is a 5 reel game that is 4 symbols high. The game uses traditional paylines, with 20 in total playing from left to right.

Special Symbols

Wild/Scatter – The “Book” is both a Wild symbol and a Scatter. This means that it will substitute for all other symbols and it will pay out in combinations of 3 or more regardless of paylines. 3 of them will also trigger the Free Spins feature and it is the highest paid symbol in the game.

Progressive Trigger Symbol – The “Gold Oz Coin” is the Progressive Trigger Symbol. They land on top of existing symbols and when they do you will be awarded a spin on the Jackpot Wheel. They are more likely to land when you increase the bet.

Bonus Features

Stacks and Jumbo Blocks – The Witch symbol can all appear on the reels as stacks of 2, 3 or 4. There is also the chance that a Jumbo symbol can appear on reels 2-4.

If you land 3, 4 or 5 Scatter symbols you will be given 5, 7 or 10 Free Spins, respectively. During the feature all wins that land will be doubled. There will also always be a jumbo symbol in place across reels 2-4. Scatters and Progressive Trigger symbols can only appear on reels 1 and 5. 2 Scatters will award 3 additional spins.

Wowpot – The Wowpot, is a Progressive Jackpot that triggers when a Progressive Trigger symbol appears on the reels. This becomes more likely to happen as you increase the bet. If you do trigger the Jackpot then you spin the wheel and are awarded 1 of the 4 that are available: The Mini, Minor, Major and the WowPot. This is a progressive jackpot, which means it will increase as more players spend money on the slot.


Sisters of Oz: Wowpot a new slot that is working within the Oz universe that Microgaming appear to have established. It focuses on the witches from the stories, giving them a sexy makeover that is worlds apart from the original Wicked Witch of the West. The slot is all about the Progressive Jackpot because without it there isn’t much going on at all. You get Free Spins and you get Wilds. You also get jumbo symbols but the draw is definitely the Progressive Jackpot. Why? Because without it the house edge is astronomical and with it you are still being offered very poor value for your money. For that reason we cannot recommend this slot.

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