Title
Developer
Rating
RTP
96.11%
Daily
66.16%
Weekly
91.27%
Cold
Free Spins
Trigger this by landing 3, 4, or 5 Book symbols, which award 10, 15, or 20 free spins, respectively. You'll also pocket an immediate payout of 10x, 100x, or 500x your bet. At the start of the round, one regular symbol is selected as a special expanding symbol.
When applicable, this chosen symbol expands to fill its reel and pays from any position (not just adjacent lines), provided it can form a winning combination.
Retrigger mechanics keep things exciting:
2 Book symbols during free spins give you:
+5 extra free spins
An additional expanding symbol
If the new symbol is already active, its multiplier increases by +1, capping at 9x.
Power Free Spins
Key differences:
A special expanding symbol is also selected, but…
Landing a Power Book on reels 2, 3, or 4 turns that reel golden. On golden reels, the expanding symbol will expand even if it doesn’t land on that reel.
When you retrigger (2 Book symbols):
Your expanding symbol is upgraded (e.g., to a higher-value symbol).
You gain +5 more spins.
If you’ve already hit the top symbol, retriggers instead grant a +1 multiplier (up to 9x).
Lucky Boost
If you’re impatient for the action (and bonus buys are legal in your region), Book of Power offers two options:
Buy Regular Free Spins for 100x your bet
Buy Power Free Spins for 200x your bet
This gives you instant access to the expanding symbol features without waiting for Books to naturally land.
According to Roobet Casino Book of Power offers the following to players:
Min Bet: 0.10
Max Bet: 100.00
RTP: 96.09%
Volatility: High
Max Win: 15,000x your stake
That’s a hefty win cap, and it’s paired with highly volatile gameplay that favors risk-takers and those chasing huge rewards over time.
Book of Power sticks closely to the iconic “book slot” formula but injects it with modern flair. The Power Free Spins and Golden Reel mechanics feel like smart, thoughtful upgrades that elevate what could’ve been a very standard release.
Fans of Net Gains, Iron Bank, or Beast Mode will notice this is a more restrained outing—but still one packed with dynamic features and huge potential. Whether you're loyal to the classics or hungry for innovation, Book of Power is a worthy addition to the Razed game library.
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