Book of Power keeps the familiar 10-line expanding-symbol format but splits its bonus into ordinary Free Spins and a stronger Power version. A Wild Book helps unlock the rounds, one or more special symbols can expand, and the enhanced route adds multiplier potential. The difference between the two modes is the review’s central point.
Book of Power at a glance
| Provider | Relax Gaming |
|---|---|
| Genre / theme | Ancient Egypt |
| Game type | Video slot |
| Reels / grid | 5×3 |
| Volatility | High |
| Payout mechanic | 10 fixed lines |
| Maximum win | 15,000x the bet |
| Main features | Wild Book, Free Spins, Power Free Spins, expanding symbols, special multiplier and Power Bet |
RTP and stake limits can vary by version and market. Check the information screen in the game you open. Maximum win is a ceiling, not an expected result.
Ten fixed lines and the Wild Book
The slot uses five reels and 10 fixed paylines according to Relax Gaming’s official release coverage. The Wild Book supports the base game and bonus entry. Wins still depend on symbols occupying the required fixed-line positions; an expanding symbol increases reel coverage but does not pay merely because it fills empty visual space.
The Power Bet option raises the chance of entering a bonus by 170% on the official page. That is a relative increase in feature frequency for a higher-cost mode, not a 170% return and not a promise that the next spin triggers. Standard wagers should be compared separately from the enhanced bet.
Free Spins versus Power Free Spins
In ordinary Free Spins, one special expanding symbol is selected. When its conditions are met, that symbol can cover more of the reels and complete additional line combinations. The mechanic remains positional: the expansion matters only where the resulting symbols form valid wins on the ten-line layout.
Power Free Spins enhance the same framework with additional expanding symbols and a special win multiplier. The stronger route therefore combines broader symbol coverage with multiplication rather than replacing the book mechanic. It can create more interaction, but the chosen symbols and their actual positions remain random.
RTP variants and maximum win
The official product page lists a 90% German RTP and an alternative 94% RTP, while its reviewed text does not state a standard default. It confirms stakes from €0.10 to €60 and a maximum win of 15,000x. The active operator help screen should be checked for the exact RTP version.
Relax’s release article identifies the game as high volatility and confirms five reels with ten paylines. That profile fits a design whose strongest results depend on bonus entry, useful expanding-symbol selection and multiplier interaction. High volatility describes distribution over many plays, not a guaranteed pattern in a short visit.
A recognisable format with a real distinction
The strength is that the Power round extends a known Book structure without making it unreadable. Additional special symbols broaden the ways an expansion can help, while the multiplier supplies a second source of growth. Players familiar with the genre can identify the core rule quickly and then focus on the enhanced interaction. For a useful contrast, see Temple Tumble 2 Dream Drop review; compare another published Relax Egyptian setting with a different tumble and jackpot structure.
The limitation is reliance on feature access and symbol selection. A bonus can choose less useful specials, expansions can miss complete lines, and Power Bet costs more while changing only the chance of entry. The ancient setting is polished, but it does not reduce the sharp variability associated with the documented high-volatility profile.
Book of Power is a measured rewrite rather than a rejection of the Book format. Its standard round provides the expected expanding-symbol idea, while Power Free Spins add more special symbols and a multiplier so the enhanced route has a clear mechanical reason to exist. That distinction is easier to value than the 15,000x headline alone. Readers who already understand fixed-line Book slots should find the changes legible. The trade-off is familiar too: much depends on reaching the feature and receiving an expansion that aligns with the grid.
Strengths
Book of Power is a measured rewrite rather than a rejection of the Book format Its standard round provides the expected expanding-symbol idea while Power Free Spins add more special symbols and a multiplier so the enhanced route has a clear mechanical reason to exist That distinction is easier to value than the 15 000x headline alone Readers who already understand fixed-line…
Weaknesses
Relax’s release article identifies the game as high volatility and confirms five reels with ten paylines That profile fits a design whose strongest results depend on bonus entry useful expanding-symbol selection and multiplier interaction High volatility describes distribution over many plays not a guaranteed pattern in a short visit
Our Editor’s View
Book of Power is a measured rewrite rather than a rejection of the Book format Its standard round provides the expected expanding-symbol idea while Power Free Spins add more special symbols and a multiplier so the enhanced route has a clear mechanical reason to exist That distinction is easier to value than the 15 000x headline alone Readers who already understand fixed-line Book slots should find the changes legible The trade-off is familiar too much depends on reaching the feature and receiving an expansion that aligns with the grid
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