How it plays
Book of Dead is a 5×3, 10-line slot built entirely around its free-spins round. The book symbol is both wild and scatter: three or more award 10 free spins with one randomly chosen expanding symbol that stretches to cover full reels and pays like a scatter across all lines.
The base game is deliberately spartan — the volatility lives in which symbol the book picks. Landing the explorer Rich Wilde as your expanding symbol on multiple reels is where the 5,000× ceiling comes from.
RTP versions
The standard configuration returns 96.21%, but Play'n GO also licenses 94.25% and 91.25% versions to operators. The game client's paytable shows the active figure — check it before depositing, because the difference compounds fast on a high-volatility game.
Verdict
It earned its status honestly: simple rules, brutal variance, and retrigger potential that keeps the round alive. If you only ever try one book slot, it should be this one — at the 96.21% config.