Book of Dead Bonus Features and Free Spins

Triggering the Free Spins Feature

The free spins feature is triggered by landing three or more Book of Dead scatter symbols anywhere on the reels. The book symbol acts as both the scatter and the wild. It substitutes for all other symbols to help form winning combinations. When three or more books land, the feature is activated instantly. The player is awarded 10 free spins.

The feature can be retriggered during the free spins round. Landing three or more book scatter symbols again awards an additional 10 free spins. There is no stated limit to the number of retriggers, allowing for extended bonus rounds.

The Expanding Symbol Selection

Before the free spins begin, the game randomly selects one standard paying symbol to become the Special Expanding symbol for the duration of the bonus. This symbol is chosen from the regular paytable symbols, which include Rich Wilde, the pharaoh, Anubis, Horus, and the card ranks from Ace to 10.

When this chosen symbol lands in sufficient numbers during a free spin, it expands to cover its entire reel. This expansion can create multiple winning combinations across the 10 paylines. The potential of the free spins round depends heavily on which symbol is selected to expand.

Gameplay During the Free Spins

During the free spins, the standard game rules apply with the critical addition of the expanding symbol. Only the pre-selected symbol gains the ability to expand. The book scatter symbol retains its wild and scatter functions. It can substitute for any symbol and can also retrigger the feature.

Wins are evaluated left to right on active paylines. The expanding symbol mechanic is the primary source of large wins within the bonus. The high volatility of the slot is most evident in this round, where outcomes can vary significantly based on the frequency of the expanding symbol.

The table below summarizes the key numerical facts related to the Book of Dead bonus features and overall game mechanics, as verified from developer and review sources.

Note that the RTP of 96.21% is the developer's default configuration. Some online casino operators may choose to run a lower RTP version of the game.

Strategic Considerations for Base Game and Symbol Payouts

The base game of Book of Dead functions as the consistent, albeit lower-paying, counterpart to the volatile free spins bonus. Played on a standard 5x3 grid with 10 fixed paylines, the core gameplay involves matching symbols from left to right on active lines. The paytable is distinctly tiered, featuring theme-appropriate high-value symbols and lower-value traditional card symbols. According to source notes, the highest-paying standard symbol is the explorer Rich Wilde, followed by other Egyptian icons such as a pharaoh, Anubis, and Horus's falcon. The lower-value symbols are the royal card ranks from Ace down to Ten, all styled to fit the ancient Egyptian theme. This structure creates a clear hierarchy where wins from the premium symbols are significantly larger but occur less frequently than those from the card symbols.

Understanding the symbol values and their expected frequency is crucial for managing bankroll, especially given the game's high volatility. The RTP of 96.21% is an average theoretical return calculated over an extended period, and its distribution is notably skewed. As noted in player discussions, a significant portion of this return is not allocated to the largest jackpot hits, which are instead concentrated within the free spins feature. Consequently, the base game is characterized by periods of frequent, smaller wins from card symbols and mid-tier icons, interspersed with less common but more valuable hits from the premium symbols. This pattern leads to the extended 'droughts' mentioned in source materials, where substantial wins are absent until the bonus feature is triggered.

The book symbol is the game's only special symbol, acting as both the wild and the scatter. In the base game, it substitutes for all other standard symbols to help form winning combinations. Its most critical function, however, is to trigger the free spins round when three or more land anywhere on the reels. There is no separate, traditional wild symbol. This design choice simplifies the game's mechanics but places immense importance on the appearance of the book symbol. The absence of other features like cascading reels or random wilds in the base game reinforces a straightforward, classic slot experience where anticipation builds specifically around the scatter trigger.

Strategic play in the base game revolves around bet sizing and payline management. With bets adjustable from $0.01 to $100.00, players can tailor their risk exposure. For players seeking the game's full potential, maintaining all 10 lines active is generally considered essential. The high volatility means that bankrolls can deplete quickly during dry spells, so a consistent, manageable stake is advised to endure the base game until a bonus round occurs.

The gamble feature, which can be activated after any win, presents a high-risk option. It allows players to potentially double or quadruple a win by correctly guessing the color or suit of a hidden card. This feature is separate from the main game mechanics and carries the risk of losing the entire win from that spin. Source notes caution that using this feature does not guarantee a win and can lead to rapid losses. It is a purely voluntary risk element that appeals to players seeking immediate gratification but contradicts a conservative bankroll strategy. Ultimately, success in Book of Dead's base game is less about complex feature interaction and more about endurance and capital preservation, waiting for the pivotal moment when the book symbols align to launch the high-stakes free spins round.