Book Of Zulu Slot Review
Zebras graze in the foreground, monkeys sit in the acacia canopy, and a giraffe stands so far back in the haze you almost miss her. Book Of Zulu paints its African savanna at golden hour, with carved wooden ornament running down the reel frame and mesas fading along the horizon, and it’s one of the better-looking takes on the formula.
It’s also more generous in construction than most slots wearing the Egypt version of this costume, because the round behind the Book pays from positions most of them ignore. Gamzix have built it on a 5×3 grid with ten paylines, mid volatility, an RTP of 94.01% and a win cap of 2,500x the bet.
The studio’s shelf also holds Buffalo Supreme, Piggy Vault and Juicy Crowns, so Zulu is the outlier in theme if not in build. The question underneath all that golden light is whether the round behind it pays enough to be worth reaching.
The Base Game and the Book Symbol
Book Of Zulu is a five-reel, three-row slot with ten paylines, and all ten are always active. The line rules are the classic set, worth listing in full because they govern every spin:
- Wins pay in succession from the leftmost reel to the rightmost
- Only the highest win per payline is paid
- Wins on multiple paylines add together
- Once a spin starts, the bet size for that round is locked and can’t be changed
- Payout values in the paytable are dynamic – they scale with the selected bet size
- Winnings are displayed in your own currency
A spin begins with the Start button after you’ve chosen a bet size, and the round runs on that locked stake until it settles. There’s a fun mode alongside real money play, which scores the session for entertainment rather than balance. Simple, and nothing here hides from you.
The Book symbol does two jobs. It lands anywhere on the reels in the main game and in Free Spins, and three or more of it award ten free spins plus their paytable win. It also works as a wild, substituting for every symbol except the Expanding symbols during Free Spins.
When it substitutes, it always pays the highest possible combination on the paytable rather than leaving the outcome to chance. That dual role carries the base game: everything else is line wins and waiting for Books.
Visually the reels sit in a carved wooden frame with tribal ornament running down the sides, against that golden-hour savanna backdrop. The royal run of A, K, Q, J and 10 shares the reels with masks, drums, amulets and the explorer, which is the slot’s own cast rather than a generic one.
Free Spins and Expanding Symbols
Three or more Book symbols anywhere in the main game activate ten free spins. The round plays at the same bet as the spin that triggered it, and when the spins run out, the total from the round is added to any win from the triggering spin. Neither of those details is unusual; what the round does with its symbols is.
Before the round starts, the game selects Expanding symbols at random. Any two symbols can be chosen, except the Book itself. An Expanding symbol fills its entire reel, but only when enough of the same symbol are already on the reels to make a winning combination; if there aren’t, it stays put.
That condition is what separates a memorable round from a quiet one. When the expansion does land, the pays are generous with the lines. The full picture:
- Expansion triggers only if enough symbols for a win are present
- A qualifying Expanding symbol fills the whole reel it appears on
- Its wins are paid on all ten paylines, on all reels
- Those wins count even on non-adjacent positions
- They’re paid independently of the normal payline wins, so both can land on the same spin
Two well-chosen symbols filling three reels apiece is where the money in this game lives. The round retriggers, too. Three or more Books landing anywhere during Free Spins award ten extra spins.
The ceiling over all of it is the win cap. The maximum award in the game is capped at 2,500 times the bet, and once that limit is reached the round ends immediately – no spin-off, no continuation, the payout lands and the game stops. It’s a hard stop rather than a soft guide, so bear it in mind before chasing the expanding symbols too far up the ladder.
Extra Bet
There’s no outright bonus buy here. What Book Of Zulu offers instead is an Extra Bet: a toggle under the reels that guarantees one Book symbol on every spin, for a higher stake. The specifics:
- Activating Extra Bet costs 2.5 times the bet
- It guarantees one Book symbol per spin, which helps towards the three needed for Free Spins
- Wins are evaluated on the bet value, not the Extra Bet value
- It stays on until you switch it off, and it can only be deactivated at the end of a game round
- If autoplay is running, autoplay has to be switched off first to turn it down
The RTP picture barely moves with it: 94.01% normally, 94.02% with the Extra Bet active. So the mode isn’t buying you return, it’s buying you Book symbols, at two and a half times the cost per spin.
One guaranteed symbol still leaves you needing two more from the reels, and that’s the calculation to make before committing to it. For anyone chasing the free spins round specifically, it shortens the road. For everyone else it’s an expensive habit.
Our Honest Verdict
Overall Rating: 7.1/10
This is a game you play for one reason: to watch the sun set over the savanna while two expanding symbols quietly stack up a round that pays on lines you’d forgotten were there. The pace is steady rather than thrilling, and the scenery does a lot of the work in between Books.
Its strength is that free spins round. Paying expanding symbols on all ten lines from non-adjacent positions is rarer and better than the genre usually allows. Its weakness is the price of admission: a 94.01% return sits below what most UK players will be used to, and no amount of golden light changes that number.
It’s for players who like the book formula and want it somewhere warmer, and who don’t mind a house edge a shade heavier than the famous names. Anyone chasing five-figure ceilings or a cheap buy menu will find this savanna a little dry.
Book Of Zulu FAQs
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What is the RTP of Book Of Zulu?
The RTP is 94.01%, rising fractionally to 94.02% when the Extra Bet is active. -
How does the Free Spins round trigger in Book Of Zulu?
Three or more Book symbols appearing anywhere on the reels start ten free spins. Landing three or more again during the round adds another ten. -
How do Expanding Symbols work in Book Of Zulu?
Before Free Spins begin, any two symbols except the Book are selected at random as Expanding symbols. An Expanding symbol fills its whole reel when enough of the same symbol are present for a win, and its wins pay on all paylines on all reels, even non-adjacent ones. -
Can you buy the bonus on Book Of Zulu?
There’s no direct bonus buy. The closest thing is the Extra Bet, a toggle that costs 2.5 times your bet and guarantees one Book symbol on every spin to help trigger the Free Spins. -
Is Book Of Zulu high volatility?
No. Book Of Zulu is a mid volatility slot, so wins should come at a steadier pace than in a high variance game. -
What is the maximum win on Book Of Zulu?
The maximum award is capped at 2,500 times the bet. Once that limit is reached, the round ends immediately. -
How many paylines does Book Of Zulu have?
Ten paylines, always played with all paylines active. Wins pay left to right from the leftmost reel, and only the highest win per line is paid. -
Does the Book symbol pay as a wild in Book Of Zulu?
Yes. During Free Spins it substitutes for all symbols except the Expanding symbols, and when substituting it always pays the highest possible winning combination on the paytable. In the main game, three or more Books also award the free spins.


