Book of Power Slot Review

Book of Power Slot Overview

Book of Power is Relax Gaming’s take on the classic book mechanic, made together with the Casinogrounds community. I walked in expecting a standard Egyptian clone, but the first few spins told a different story. The visuals have real weight, the explorer feels like a proper character, and the soundtrack pushes that high‑stakes adventure vibe that suits a high volatility slot built for serious sessions.

Under the polished surface, Book of Power sticks to the 5x3, 10 payline template, but the dual books and Power side of the bonus design change how the game feels. The base game can be quite dry, as you’d expect from something with 15,000x potential, yet the Power Bet option and the way books tease across the reels kept me engaged longer than most ‘book’ titles.

Book of Power Slot Information

Book of Power runs on a 5 reel, 3 row layout with 10 fixed paylines and bets from 0.10 up to 30 per spin. The default RTP sits at 96.11%, rising to 96.5% when you buy either bonus. Volatility is right at the top of Relax Gaming’s scale, and the maximum win is capped at 15,000x your stake, which is high for this style of game.

Book of Power Slot Features

The whole engine in Book of Power revolves around two Book symbols. The regular blue Book and the red Power Book are both wilds and scatters, so they step in for pay symbols and trigger free spins. You can flick on the Power Bet at double cost, which raises the overall free spins frequency by 170% and gives you a chance to gamble standard free spins into Power Free Spins.

Hit 3, 4 or 5 books in Book of Power and you get 10, 15 or 20 free spins, plus 10x, 100x or 500x your stake upfront. Before the round starts, one pay symbol is picked as a special expanding symbol. When enough of that icon land anywhere in view, they expand to cover reels and pay on all 10 lines. Two books during the round add 5 spins and another expander or a +1 multiplier, up to x9.

Power Free Spins in Book of Power step things up. You trigger them when at least one triggering scatter is a Power Book, for the same 10, 15 or 20 spins and scatter payout. Here, landing 2 books upgrades the current expanding symbol one step up the paytable and grants 5 extra spins. Once the top explorer is the expander, further retriggers increase its multiplier, and Power Books on reels 2, 3 or 4 turn those reels golden so they count as expanded even without symbols. Lucky Boost, also called Hot Mode in some texts, can kick in on any free spin to raise the hit potential, and outside the UK you can buy regular free spins for 100x or Power Free Spins for 200x your bet.

Bonus Buy Feature

10-20 free spins The Standard Free Spins round can be instantly triggered from the base game by buying it for 100x current bet.
Feature Cost:	x100 Bet
RTP:	-
Volatility:	-
10-20 power free spins The Power Free Spins round can be instantly triggered from the base game by buying it for 200x current bet.
Feature Cost:	x200 Bet
RTP:	-
Volatility:	-

Book of Power Symbols and Paytable

The paytable in Book of Power follows the classic book pattern. Low pays are 10 to A royals, awarding 10x to 15x your stake for five of a kind. High pays are the pyramid, green scarab, pharaoh mask and the explorer. Five premiums pay between 75x and 500x your bet, and the top explorer is the real prize, especially when he becomes the expanding symbol in either bonus mode.

Both Book symbols in Book of Power act as scatters with their own payouts. Line up 2, 3, 4 or 5 and you get 1x, 10x, 100x or 500x your stake as an instant win. During free spins, the chosen expanders pay on all 10 lines from any position, so you are chasing counts rather than lines. In Power Free Spins, golden reels count as if the symbol landed there, which makes higher tier symbols far more attractive than the royals.

Symbols and Paytable

Symbol	Quantity	Payout
	Scatter
	5	x500
	4	x100
	3	x10
	2	x1
	Scatter
	5	x500
	4	x100
	3	x10
	2	x1
	5	x500
	4	x100
	3	x10
	2	x1
	5	x200
	4	x40
	3	x4
	2	x0.5
	5	x75
	4	x10
	3	x3
	2	x0.5
	5	x75
	4	x10
	3	x3
	2	x0.5
	5	x15
	4	x4
	3	x0.5
	5	x15
	4	x4
	3	x0.5
	5	x10
	4	x2.5
	3	x0.5
	5	x10
	4	x2.5
	3	x0.5
	5	x10
	4	x2.5
	3	x0.5
	Wild

The 200 Spins Book of Power Slot Experience

Across roughly 200 spins on Book of Power, the base game felt familiar: long stretches of small line hits, the odd double Book tease, and that constant tug to flick on Power Bet. I chose to buy Power Free Spins once, landed K as the initial expander, and watched it climb the ladder through a couple of upgrades. The round kept reloading with +5 spin retriggers, which gave a decent mid‑range payout rather than anything insane.

Book of Power Slot Verdict

From a regular high‑stakes player’s point of view, Book of Power hits a sweet spot between comfort and ambition. The core ‘book’ gameplay is instantly clear, yet the upgrade ladder, golden reels, multipliers and that Lucky Boost twist mean the bonuses do not feel like a simple copy. The slot can be rough in the base game, but that is the price you pay for a 15,000x ceiling.

Where Book of Power really works for me is in the tension the Power system creates. You are often torn between grinding standard spins and pushing harder with Power Bet or a bonus buy. When the expanding explorer lines up with multipliers and golden reels, the game shows exactly why Relax Gaming and Casinogrounds kept coming back to this concept. For fans of volatile book slots, this one earns a place in the rotation.

Screenshots