Book of Duat Slot Review: Picks, Expanding Reels and Free Spins

Book of Duat takes the familiar ancient tomb setting and builds its identity around choices made before the free spins begin. Wild symbols award picks, and those picks shape a bonus with extra spins, expanding symbols and a multiplier. The interesting question is how those three rewards work together: the pick pool can run out, expanding symbols receive their own evaluations, and retriggers can add another small set of choices.

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Book of Duat at a glance

Provider	Quickspin
Genre / theme	Ancient Egypt
Game type	Video slot
Reels / grid	5 reels
Payout mechanic	10 paylines
Main features	Wilds trigger free spins and picks; the bonus combines a finite pick pool, expanding-symbol evaluations and a multiplier.

RTP and stake limits can vary by version and market. Check the information screen in the game you open. Maximum win is a ceiling, not an expected result.

A straightforward five-reel base game

The base layout is five reels with ten paylines. Wilds are the important bonus symbols: three or more anywhere on the screen start four free spins. The number of Wilds on the reels also determines the starting pick count. Three Wilds give three picks, four give six, and five give twelve. The trigger therefore decides more than whether the feature starts; it also sets how much room the opening selection has to improve the bonus.

Entry grants one Expanding symbol and a 1x multiplier in addition to the picks. The official rules describe the expanding symbol as chosen randomly from the remaining non-expanding symbols, with Wilds excluded. That distinction matters because the feature is not simply a fixed set of expanding high symbols. Which ordinary symbol is selected changes the kind of line pattern that can benefit from its later full-reel evaluation.

Pick and Click shapes the bonus

At the start of free spins, each pick draws an award from a pool containing extra spins, more expanding symbols, or multiplier increases. The pool has different quantities of each award: for example, several +2-spin tiles coexist with single larger +10-spin and +5x tiles. Once an award is selected, that tile is removed for the rest of the current round. Some awards have duplicate tiles, so an outcome can appear again, but the pool gradually narrows. If every tile has been used, any remaining picks convert into three free spins each.

That finite pool gives the picking stage a real consequence. A larger initial trigger supplies more selections, but it does not guarantee a particular multiplier or expanding symbol. The 1x multiplier awarded on entry applies to all free-spin wins and can be increased through picks. Meanwhile, each expanding symbol is evaluated after the normal pay evaluation on every spin: it expands to cover its entire reel and pays anywhere in that separate evaluation. Wilds are ignored during these extra evaluations, so the additional pass is not simply a second ordinary spin result with every symbol retained.

The feature can retrigger. Three or more Wilds during free spins award two extra spins; three, four or five Wilds on the reels also grant one, two or four new picks respectively. Those picks return to the Pick and Click stage, giving the bonus another chance to alter its remaining structure. The extra spins and picks are awarded under separate thresholds, so a retrigger may extend play without necessarily supplying the same number of new selections.

Configuration and practical limits

Quickspin lists three RTP models for Book of Duat: 90%, 94% and 96%. The exact model depends on the operator configuration, so the game title alone does not identify which return setting a particular casino uses. The published game page does not provide a volatility rating, maximum win or release date for this version. Those figures should be checked with the casino or game information panel where available rather than inferred from the bonus design.

A useful comparison is Quickspin’s Reno 7’s, where scatters lead to a wheel and a stacked Wild free-spin feature. Book of Duat puts more of its complexity into the selection pool and the independent expanding-symbol evaluations. That makes the sequence easier to understand once the rules are known, but the bonus has several moving parts to track at once: spin count, remaining tiles, symbol choice and multiplier.

Strengths and weak points

Strengths

The finite pick pool, symbol selection and separate expanding-reel evaluations give the free-spin round several concrete decisions and outcomes to follow.

Weaknesses

The pick awards are random, later selections depend on a shrinking pool, and the operator-specific RTP model is not identifiable from the title alone.

Our Editor’s View

Book of Duat is best suited to players who enjoy a bonus whose ingredients are assembled before the main free-spin sequence unfolds. The pick pool creates meaningful variation, while the full-reel evaluations give the chosen symbol a distinct job after ordinary line wins have been assessed. Its retrigger rules can reopen the selection process, though the awards remain random and the pool is finite. The operator-specific RTP model is another practical unknown until the game is opened at a particular casino. If you prefer a feature that announces one simple change and repeats it, this layered picker may feel busy; if you like following how a few selected modifiers alter later spins, it offers a clearly structured puzzle within a conventional ten-line base game.