Theoretical return to player
96.11%
Minimum bet
0.10
Slot category
Video Slots
Volatility
High
Number of reels
5
Progressive jackpot
No
Popularity
Maximum bet
60
Software provider
Relax Gaming
Bonus features
Yes
Paylines
10
Theme
Ancient Egypt
Book of Power online slot review
Book of Power is a high-volatility slot set in Ancient Egypt, developed by Relax Gaming in partnership with CasinoGrounds. It builds on the familiar “Book of” format associated with earlier titles such as Book of Ra, pairing expanding traditional symbols with more powerful features designed to increase payout potential. The treasure-hunting setting will feel familiar, but the Power Book mechanic can reshape the grid and create opportunities for substantial wins, setting this game apart within the genre.
Book of Power Theme, Visual Style, and Core Mechanics
Book of Power offers a polished Ancient Egyptian setting of pyramids and pharaohs, led by a Hollywood-style archaeologist reminiscent of Indiana Jones and the Prince of Persia. Relax Gaming opts for more lifelike scenery than many older “book” slots. The backdrop evokes the entrance or interior of an ancient Egyptian building, with part of a large statue visible on the left. The reels keep the expected Egyptian look, while a blue-and-gold pyramid symbol adds a subtle modern touch.
The audio suits the setting without dominating it. Orchestral music in the base game blends Middle Eastern melodies with violin and flute. The Free Spins feature keeps the same musical identity, while a quicker pace and increased volume heighten the tension and add drama.
Book of Power uses a 5x3 grid with 10 fixed paylines, alongside several variations on the standard format. The base-game Power Bet doubles the wager and increases the chance of entering the bonus round by 170%, while also unlocking access to Power Free Spins.
Top Casinos for Playing Book of Power:
Book of Power Symbols: Archaeologists and Ancient Relics
Book of Power takes its symbols from Ancient Egyptian mythology. Its paytable features low-paying card ranks, valuable relic-themed premiums and two special Book icons that control the bonus features. All symbols use 10 fixed paylines: premium combinations can pay from two matching symbols, while lower-value symbols require at least three.
Regular Paying Symbols
The paytable features familiar royal card ranks alongside more valuable Egyptian imagery:
- Low-Paying Royals: The royal group includes 10, J, Q, K and A card symbols. Five of a kind pays between 10x and 15x the bet.
- High-Paying Premiums: Blue pyramids, green tombs and purple pharaohs form the higher-value tier. They can pay from two of a kind, and five of a kind pays between 75x and 200x the stake.
- The Archaeologist: The archaeologist is the game’s highest-paying regular symbol, awarding 500x the bet when five land across a full line.
*The payout table below is based on a $1.00 bet.
| Symbol | 5 Matches | 4 Matches | 3 Matches | 2 Matches |
|---|---|---|---|---|
 | 500x | 100x | 10x | 1x |
 | 500x | 100x | 10x | 1x |
 | 500x | 100x | 10x | 1x |
 | 200x | 40x | 4x | 0.5x |
 | 75x | 10x | 3x | 0.5x |
 | 75x | 10x | 3x | 0.5x |
 | 15x | 4x | 0.5x | - |
 | 15x | 4x | 0.5x | - |
 | 10x | 2.5x | 0.5x | - |
 | 10x | 2.5x | 0.5x | - |
 | 10x | 2.5x | 0.5x | - |
The Two-Role Book Symbols
Book of Power has two distinct Book symbols: the Blue Regular Book and the Red Power Book. Together, they offer the main paths to the game’s larger wins.
- Wild and Scatter Roles: Both Books act as Wilds, substituting for any non-expanded paying symbol, and as Scatters that can trigger either of the game’s two Free Spins modes.
- Direct Payouts: Five Books of either colour landing on a line pay 500x the total bet.
- Power Trigger: The blue Book starts regular Free Spins; the red Power Book is required to activate the enhanced Power Free Spins mode.
Special Bonus-Round Symbols
Expansion and multiplier effects give symbols additional roles during the bonus rounds:
- Expanding Symbols: A random paying symbol is chosen to expand when Free Spins start. Expansion requires at least two premium symbols or three low-paying symbols to land on different reels.
- Symbol Multipliers: If a retrigger selects the symbol that is already expanding, it gains a +1 multiplier, up to a maximum of x9.
- Golden Reel Transformation: During Power Free Spins, a red Power Book landing on reel 2, 3 or 4 turns that reel into a Golden Reel. The selected special symbol then expands on that reel for the rest of the round, even if it does not land there again.
Strategy Review: Power Bets and Feature Buys
The main strategic consideration is the high volatility of the bonus features. A Lucky Boost may appear randomly as a Free Spin round begins, potentially increasing the chance of a larger payout.
In eligible regions, Casino Ideal’s review states that Regular Free Spins can be bought for 100x the bet, while Power Free Spins cost 200x the bet. Alternatively, the Power Bet feature costs 2x the bet and is described as raising the chance of landing a Free Spins round by 170%.
The base game may have long stretches with little or no reward, so some players might use Power Bet to pursue the bonus more often. Buying Free Spins outright requires a much larger stake, and neither option guarantees a win.
Alternatives to the Book of Power Slot
If you like Book of Power’s high volatility and expanding symbols, you might also consider slots with a similar risk profile or particularly forceful bonus mechanics:
- Book of Dead (by Play’n GO): This popular Egyptian-themed slot combines expanding symbols, Free Spins and a treasure-hunt setting similar to Book of Power. Its high volatility and expanding-symbol feature can lead to much larger bonus payouts, making it a natural comparison with Book of Power’s enhanced Book feature.
- Gates of Olympus (by Pragmatic Play): Gates of Olympus replaces paylines with a pay-anywhere tumble system, using cascading wins and large multipliers to create high volatility. Its bonus play is similarly dramatic and unpredictable for players chasing large single-spin results. Unlike Book of Power’s ordered reels and expanding symbols, it relies on cascades and multipliers without symbol expansion.
Book of Power Slot Verdict
Book of Power may appeal to players who enjoy expanding symbols in particular. Its Egyptian theme is familiar, but Golden Reels and symbol multipliers add meaningful variety to the feature cycle. The stated 15,000x maximum win is an ambitious figure in a crowded category, but it represents potential, not a promised outcome.
Evan Carrington brings more than 12 years of experience in the iGaming industry, with a focus on reviewing online casinos, assessing slot games and examining player safety. Their work covers casino licensing, RTP, volatility, bonus terms and withdrawal policies. Drawing on practical testing and independent research, Evan provides clear, evidence-based reviews to help players understand gambling platforms, their features and possible risks.
