Introduction
Book of Dead is one of the most popular online slot games developed by Play’n GO, released in 2016. It has become a favorite among players due to its engaging gameplay, impressive graphics, and lucrative bonus features. One of bookof-dead.com the key elements that make Book of Dead stand out from other slot machines is its Stacked Symbols feature. This article will delve into the secrets behind this feature, exploring how it works, its impact on gameplay, and what sets it apart from other slots.
How Stacked Symbols Work
Stacked Symbols are a common feature in many modern online slots, but Book of Dead’s implementation is particularly noteworthy. In traditional slots, symbols appear randomly on each reel, with no consideration for the position or placement of adjacent symbols. However, when Stacked Symbols are present, multiple instances of the same symbol can appear on top of one another on a single reel.
In Book of Dead, the Stacked Symbols feature applies to all low-paying symbols except for the Wild and Scatter. This means that players can enjoy larger payouts by landing more instances of these symbols on adjacent reels. For example, if three 10-jack symbols land on consecutive reels, but with two more 10-jacks stacked above them on the same reel, the player is entitled to a higher payout due to the presence of Stacked Symbols.
Impact on Gameplay and Payouts
The inclusion of Stacked Symbols in Book of Dead has significant implications for gameplay and payouts. On one hand, it increases the potential for larger wins, especially when multiple low-paying symbols appear stacked together. This is because each additional symbol on a stack can contribute to a higher payout, even if they are not adjacent to other symbols.
On the other hand, Stacked Symbols also lead to more frequent small wins. While this may seem counterintuitive at first, it’s essential to remember that smaller payouts often add up and create a longer session for players. This means that Stacked Symbols in Book of Dead encourage players to engage with the game for extended periods, potentially leading to increased betting amounts.
Comparison with Other Slots
Book of Dead’s implementation of Stacked Symbols is notable compared to other slots on the market. While many modern slots feature stacked symbols, few use them as extensively or effectively as Play’n GO in Book of Dead. Some notable examples include:
- Legacy of Egypt : Another popular slot from Play’n GO, Legacy of Egypt uses stacked symbols but with a different twist. Instead of applying to low-paying symbols only, the game’s Stacked Symbols feature applies to all symbols except for the Wild and Scatter.
- Gonzo’s Quest : Developed by NetEnt, Gonzo’s Quest is an older slot that features falling blocks instead of traditional reels. However, its stacked symbol mechanism is more limited compared to Book of Dead.
Mathematical Analysis
Understanding how Stacked Symbols work in terms of mathematical probability requires a deeper dive into the game’s Return to Player (RTP) and Hit Frequency.
- Return to Player (RTP) : The RTP measures how much money a slot machine pays out to players on average. Book of Dead has an RTP of 96.21%, which is relatively high compared to other slots.
- Hit Frequency : This refers to the probability of landing winning combinations within a given number of spins.
Using simulations and statistical analysis, researchers have estimated that the hit frequency for low-paying symbols in Book of Dead is significantly higher than average. In some cases, the hit rate reaches up to 30% or more, which is unusually high compared to other slots.
How Stacked Symbols Affect RTP
As we’ve seen earlier, Stacked Symbols increase the potential for larger payouts due to additional symbols on each stack contributing to a higher payout. However, this feature also has implications for the game’s overall Return to Player (RTP).
Using the example of Book of Dead, if players land multiple stacked low-paying symbols within a short period, their RTP will be artificially inflated. This creates an interesting phenomenon where, while individual payouts may seem smaller, the frequency at which they occur is much higher.
Potential for Bonus Rounds
Book of Dead’s Stacked Symbols feature also plays a crucial role in triggering the game’s bonus round, known as the Book Respin Feature. When three or more Scatter symbols land anywhere on the reels, players are awarded 10 free spins with stacked Wilds that replace all low-paying symbols.
The inclusion of Stacked Symbols during this feature means that players have an increased chance of landing high-paying combinations and scoring bigger wins. This creates a snowball effect where players are encouraged to continue playing, even after they’ve triggered the bonus round.
Conclusion
In conclusion, Book of Dead’s implementation of Stacked Symbols is a unique aspect of its gameplay mechanics that sets it apart from other slots on the market. While it increases potential payouts and encourages longer gaming sessions, it also impacts the game’s RTP due to artificially inflated hit rates during bonus rounds.
Whether or not this feature is beneficial for players depends on individual preferences and betting strategies. However, one thing is certain: Book of Dead’s Stacked Symbols are an integral component that helps maintain its position as a top-performing online slot machine among players worldwide.
Additional Considerations
While our analysis has focused primarily on Book of Dead, it’s essential to note that the presence or absence of stacked symbols can significantly impact gameplay. This feature is not unique to Play’n GO’s slots, and many other developers have experimented with similar mechanics.
Some notable variations include:
- Dual Stacks : Some games use dual stacks where multiple instances of a symbol appear on adjacent reels.
- Stacking Wilds : Certain slots feature Wild symbols that can stack together, increasing the potential for high-paying combinations.
These variations demonstrate how game developers can adapt and refine the stacked symbol concept to suit their specific needs.


