Bronze
$0 / $1000
to Silver
2% Cashback

Book of Dead

Lobby
RTP: 96.21% | Volatility: High | 5 Reels, 10 Lines
Balance: $10,000.00
Win: $0.00
FREE SPINS: 0 remaining — Expanding Symbol: ?
Place your bet and spin the reels!
History
Bet/Line
Total: $10
Lines

Double or Nothing

Current win: $0

Pick Red or Black to double your win

♥
♠
0
Spins
0
Wins
$0
Best Win
-
Session RTP
AcmetoCasino | Book of Dead Simulation | RTP 96.21%

📖 Book of Dead

How to Play

  • Book of Dead is a 5-reel, 3-row slot with 10 paylines.
  • Match 3 or more identical symbols on a payline (left to right) to win.
  • The Book (📖) acts as both Wild and Scatter.
  • Land 3+ Book symbols anywhere to trigger 10 Free Spins.
  • Before Free Spins begin, one symbol is randomly chosen as the expanding symbol.
  • During Free Spins, the expanding symbol covers the entire reel when enough land for a win, paying on all paylines.
  • Free Spins can retrigger with 3+ Books during the bonus.

Math & Probabilities

RTP
96.21%
Volatility
High
Max Win
5,000x
Hit Frequency
~33%

The expanding symbol mechanic during Free Spins creates the game's high-volatility profile. Free Spins trigger at approximately 1.2% per spin. The most valuable expanding symbols (Rich Wilde, Osiris) can produce wins exceeding 5000x when filling multiple reels.

🔒 For Casino Operators

Engine Mechanics: Engine uses 5x3 reel with 10 paylines. Free spins feature with expanding symbol creates high-volatility bonus. Book scatter triggers 10 free spins at ~1.2% per spin.

RTP Control: Target RTP is configurable via the Dashboard → Game Control tab. The engine uses dynamic payout adjustment: rtpFactor = targetRTP / currentRTP clamped to [0.1, 2.5], applied to every win. Over ~500 rounds, actual RTP converges to target within ±1%.

House Edge: 3.79% at default settings. Revenue per 1,000 rounds at €1 avg bet: ~€38.

Variance Profile: High variance — long dry spells broken by bonus rounds that can pay 500-5000x.