


RTP
96.1%
Volatility
Medium
Max Win
N/A
Book Of Lucky Jack - Ra's Treasure is a medium-volatility online slot from Spinomenal with an RTP of 96.14%.
Page updated July 2026
Book Of Lucky Jack - Ra's Treasure is Spinomenal's mash-up entry in the Book genre, blending a swashbuckling Lucky Jack character with Ra's ancient Egyptian treasure hunt. Due for release on 27 February 2026, the title suggests a crossover theme that mixes adventurer charm with the temple-and-treasure backdrop the genre built its name on.
The name points to a story where an adventurous protagonist chases down Ra's riches, likely dressed in the golds, sands and hieroglyphic detail typical of Egyptian-themed Book slots, but filtered through a more character-driven, adventure-movie lens rather than a straight temple setting. As with the wider genre, the core gameplay loop should revolve around a Book symbol doing double duty as Wild and Scatter, unlocking Free Spins and an expanding bonus symbol once enough copies land on the reels.
Spinomenal has set the return to player at 96.14% for this release, a genuinely competitive figure that sits above the 96% threshold many players use as a quick fairness check. Over a large sample of spins, that RTP points toward a maths model built to return a healthy share of total stakes to players.
Carrying a medium volatility rating, Book Of Lucky Jack - Ra's Treasure should deliver a steadier flow of wins than the high-volatility Book slots that dominate much of the genre, without sacrificing the chance of a stronger bonus round when the reels align. It's a solid middle ground for players who want engagement without excessive dry spells.
No maximum win multiplier or stake range has been confirmed ahead of the game's release, so players will want to check the paytable directly once it goes live to see the exact top prize and betting limits on offer.
Book Of Lucky Jack - Ra's Treasure looks like an appealing, medium-volatility twist on the Egyptian Book formula, helped along by a strong 96.14% RTP and a slightly more character-led theme than the genre's usual temple-bound offerings. It's one to watch for players who enjoy adventure-flavoured slots with dependable payback. Check the free demo at johnessyslots once it lands to see Lucky Jack's treasure hunt in action.
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Book Of Lucky Jack - Ra's Treasure has an RTP (return to player) of 96.14%. RTP is the theoretical percentage of total stakes a slot returns to players over a very large number of spins, as published by Spinomenal — individual sessions can land far above or below it.
Book Of Lucky Jack - Ra's Treasure is rated medium volatility. Medium-volatility slots sit between the extremes — a balance of win frequency and win size.
Book Of Lucky Jack - Ra's Treasure is developed by Spinomenal and was released in Feb 27, 2026.
Verified Data via Johnessy AI