Book of Doom is the dark Belatra book slot and the lowest declared RTP in this section: 92.61% at high volatility. That is exactly why the figures are worth checking first. Check the live RTP and win chance from IPU.BET data, then pick an operator from the vetted rating.
Provider RTP
92.61%
declared
Volatility
High
payout pattern
Online RTP
92.19%
actual, last 24h
Win chance
Medium
per IPU.BET data
About the game
A dark twist on the book formula: the tome is both scatter and wild and three of them open the free spins. One symbol is drawn before the round and expands across the reel every time it lands.
Where to play for real money with IPU.BET protection and cashback
Parimatch
100% on your first deposit 
SpinBetter
Up to €1,500 + 150 Free Spins 
ColdBet
Up to €1,500 + 150 Free Spins 
1xBet
Up to 21,000,000 UZS + 150 Free Spins 
Vivajack
Up to €2,500 + 200 Free Spins 