Book of Dead slot: Scatter-triggered free spins with a changing expanding symbol

The random symbol is chosen before free spins begin

Play'n GO's game page describes a symbol selected at random for the free-spin sequence. When that symbol appears in a qualifying position, it can expand across all three spaces on its reel. It only expands when the result can create an additional prize along an active payline.

Three scatter symbols unlock ten free spins, and three more during the feature can award another ten. That is the supplier's published trigger rule. The game page does not provide a single RTP setting or a complete list of game statistics in the public text reviewed for this guide.

The feature is about symbol expansion, not extra paylines

An expanding symbol changes the size of one symbol on a reel. It does not add rows or create a different grid. The expanded symbol may help form a line combination even where ordinary symbols are not adjacent, subject to the active paylines and the game's paytable.

Because the symbol is chosen for the whole feature before the free spins start, each feature can focus on a different symbol. The supplier's guide does not say that a valuable symbol is more likely to be selected, and this page makes no such assumption.

A trigger-to-feature example

In a hypothetical sequence, three Tomb scatter symbols land in the base game. The game awards ten free spins, selects one ordinary symbol, then evaluates each free spin under the feature rules. If the chosen symbol appears in a paying arrangement, it may expand across its reel. A further three scatters can add ten spins.

This is a neutral example of the rule sequence. It is not a prediction about the frequency of the trigger or the value of a resulting feature. The outcomes remain random under the game model.

Check the version before relying on a figure

Play'n GO says its slot portfolio can be certified at different RTP settings across jurisdictions. The public Book of Dead page cited here does not state one current Great Britain RTP. The figure can therefore not be inferred from another operator page, a fan guide or a different version.

If an operator copy is open, the information panel is the direct source for its rules and displayed RTP. The page should be identified as Rich Wilde and the Book of Dead, released 14 January 2016; later games in the Wilde series have separate mechanics.

Related slot guides

For general background, see RTP explained, volatility explained and slot features explained. If gambling is causing concern, use the Great Britain support page.