Book Of Muertos Slot Review
Marigold petals drift through a violet night, and the reels glow gold at the edges of a Day of the Dead celebration that never quite ends. Book Of Muertos doesn’t just wear the theme – it fixes the most predictable thing about the book format. Where every other entry in the genre picks one expanding symbol and rides it for the whole round, this one redraws the expander on every single free spin. It’s the rare book slot where spin 10 plays differently to spin 2.
Spinomenal keep the rest familiar: a 6×3 grid, 10 paylines and an RTP of 96.01%, with one symbol doing double duty as wild and scatter. The studio’s Book series runs from Book Of Rebirth Extreme through Book Of Elves and Book Of Titans, and this entry trades Egyptian sand for sugar skulls and crossed guns. Six Ladies across the reels pays 100,000x the bet, the biggest number anywhere in the game.
The Base Game and Its Symbols
Wins pay left to right from the leftmost reel, and only the highest win on each line counts. Wins are multiplied by the bet per line, which is set using the bet controls before each spin. The 10 lines are fixed.
There’s no second mechanic to learn before the bonus arrives. This is a classic book setup, and it doesn’t hide it. Everything the reels do between triggers is line wins and wild substitutions.
Eight symbols fill the reels. The Lady in sugar-skull face paint leads the paytable, backed by the Skull, Crossed Guns and Sombrero, with A, K, Q, J and 10 on the lower rungs. All values are multiples of the total bet:
- Lady – 2 pays 100x, 3 pays 1,000x, 4 pays 10,000x, 5 pays 50,000x, 6 pays 100,000x
- Skull – 2 pays 50x, 3 pays 400x, 4 pays 4,000x, 5 pays 20,000x, 6 pays 40,000x
- Crossed Guns / Sombrero – 2 pays 50x, 3 pays 300x, 4 pays 1,000x, 5 pays 7,500x, 6 pays 15,000x
- A / K – 3 pays 50x, 4 pays 400x, 5 pays 1,500x, 6 pays 3,000x
- Q / J / 10 – 3 pays 50x, 4 pays 250x, 5 pays 1,000x, 6 pays 2,000x
Four of the eight symbols pay from two-of-a-kind: the Lady, the Skull, the Guns and the Sombrero. The five royals all need three, so the cheap end of the paytable starts one reel further along than the expensive end.
The gap between tiers is steep. A six-of-a-kind Lady line is worth 50 times a six-of-a-kind A line, and even the Skull doubles the Guns and Sombrero at every count. In practice that makes the Lady the symbol worth watching whenever she stacks up.
The Scatter Wild
The wild is also the scatter, substituting for any symbol and paying from anywhere on the reels. It’s the one symbol in the game with two jobs, and both of them matter.
Land three or more and they pay on top of any line wins, at these multiples of the total bet:
- 3 scattered wilds – 2x the total bet
- 4 scattered wilds – 25x the total bet
- 5 scattered wilds – 250x the total bet
- 6 scattered wilds – 500x the total bet
The same trigger starts the free spins, so a full screen of wilds pays handsomely and kicks off the bonus at no extra cost. Scatter prizes and line wins stack, which is a nicer greeting than most book games manage.
Free Spins and the Expanding Symbol
Three or more scattered wilds award 10 free spins, with the bet per line carried over from the triggering spin. That’s the only way in. Everything the bonus does flows through one mechanic:
- Trigger – 3 or more scattered wilds anywhere on the reels
- Award – 10 free spins, retriggerable for 10 more
- Stake – same bet per line as the triggering spin
- Core mechanic – a randomly assigned expanding symbol, redrawn on every spin
The twist is that the expanding symbol changes on every single spin. Rather than one symbol locked in for the round, each spin gets a randomly assigned expander – anything except the wild – that lasts for that spin alone. It’s a genuine departure from the book template, where the expanding symbol is chosen once and stays put.
Each free spin resolves in a fixed order. First the regular spin result lands and its line wins are determined. Then the expanding symbol is checked, and it stretches to new paylines on top of the existing ones – but only where the expansion actually creates a win.
No win, no expansion. The symbol stays where it landed and the spin pays out its ordinary result.
When it does expand, it pays across all 10 active lines whether or not the winning symbols sit next to each other. Those expanded wins count separately from the original result, so a spin can pay twice: once on its own lines, once on the expansion.
That’s the detail doing the heavy lifting. A scattered pair plus an expansion can pay as though the symbol filled the grid, and a high-value expander – the Lady especially – can turn one modest spin into something much bigger.
The per-spin randomiser keeps the round from settling into a rhythm, for better and worse. There’s no building towards a chosen symbol, because next spin it changes again. Six Ladies at 100,000x is the top of the paytable, and an expanded Lady round is the only realistic route there.
Retriggers
Scattered wilds landing during the round do exactly what they did to start it: three or more adds another 10 free spins. The scatter pays still apply on top, so a retrigger during the bonus is worth 2x the bet at minimum before the extra spins even run.
The expanding symbol keeps being redrawn every spin, retriggers included, so a long round never locks into one symbol. A 30-spin run can cycle through most of the paytable as expanders.
Our Honest Verdict
Overall Rating: 7.6/10
This is a game you play for the round, not the road to it. Between triggers it’s plain book-format spinning – line wins and wild substitutions, nothing else – and the marigold-strewn night is doing most of the work of keeping the eyes interested.
The free spins are the strength, and the reason is the per-spin expander. Redrawing the expanding symbol on every spin means no dead spin is decided before it lands, and because expanded wins pay on all 10 lines regardless of position, the right symbol at the right moment pays properly. Six Ladies at 100,000x is the ceiling, and an expanded Lady round is the only realistic route there.
The weakness is that the redraw also takes away the build-up. A fixed expander gives a round a story; here, next spin it’s somebody else, and there’s nothing to root for. Still, the sugar skulls are well drawn and the twist is real. Book-slot regulars get a familiar night out with one genuine surprise in it, and that’s enough. Anyone who wants the format reinvented rather than nudged will find this ofrenda spare.
Book Of Muertos FAQs
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What is the RTP of Book Of Muertos?
Book Of Muertos runs at an RTP of 96.01%. -
How many paylines does Book Of Muertos have?
Book Of Muertos has 10 fixed paylines. -
What is the grid size of Book Of Muertos?
Book Of Muertos plays on a 6×3 grid with six reels and three rows. -
How do you trigger free spins in Book Of Muertos?
Land three or more scattered wild symbols anywhere on the reels. Three scatters pay 2x your bet, four pay 25x, five pay 250x and six pay 500x, and each trigger awards 10 free spins. -
How does the expanding symbol work in Book Of Muertos?
On each individual free spin, a randomly assigned symbol acts as the expanding symbol for that spin only. After the spin result is determined, it expands to new paylines – but only if the expansion creates a win – and pays on all active lines whether or not the symbols are consecutive. -
Can free spins retrigger in Book Of Muertos?
Yes. Landing three or more scattered wilds during the round awards an additional 10 free spins on top of those remaining, and the scatter pay is awarded too. -
Can you buy the bonus on Book Of Muertos?
Yes, a BUY feature button sits in the base game interface. -
Who makes Book Of Muertos?
Book Of Muertos is made by Spinomenal.
