Book of King Arthur Slot Review
A red carpet runs towards you through an Arthurian throne room, gilded light on the stonework, a banner overhead carrying the title in gold gothic lettering. All that ceremony is doing some covering work. Book of King Arthur is a leaner, meaner game than its pageantry suggests, and it asks more patience than almost any slot with a hit rate this healthy.
The reason is simple: nearly everything it can pay is locked inside one 10-spin round. Just For The Win Studios build this one on a 5×3 grid with 10 paylines, running at 96% RTP with high volatility and a win ceiling of 5,000x the stake. It’s a tighter, more old-fashioned shape than the studio’s Power Combo titles such as Dark Waters Power Combo and Stellar Jewels Power Combo, and closer in spirit to Immortal Glory. Camelot, it turns out, still has some pull.
Base Game & Features
The reels sit inside a barrel-curved steel cabinet with riveted corner brackets and a parchment panel along the bottom edge. It’s a handsome frame. The Arthurian dressing runs deeper than the background, too: swords, ships, bows and crowns fill out the symbol rows alongside the royals.
The whole thing reads as castle-hall pageantry rather than grimdark retelling. Engraved panels flank the banner on either side, and the metalwork keeps its finish on a smaller screen as well as a large one. There’s no wild symbol in this game. That’s not an oversight – it’s the book-slot formula, and it shifts all the special work onto a single symbol.
The book itself is a shield stamped with a red dragon crest. Land three or more and the bonus fires; short of that, it pays nothing special and does nothing else. Everything else on the board is straightforward line pays.
- Grid: 5 reels, 3 rows
- Paylines: 10 fixed, paying left to right
- Stakes: from 0.20 to 500.00 per spin
- Hit frequency: 30.80%
- Max win: 5,000x the stake
Only the highest combination on a line counts, so stacked top symbols don’t double up on a single row. With 10 lines and a hit rate a shade under one spin in three, the base game pays often enough to keep sessions moving. Roughly three spins in ten return something, which is healthy company for a game carrying a high volatility rating.
The individual wins sit low, and five of a kind on a single line is never going to move the needle on its own. The money in this game lives in the bonus round. Everything the base game does between triggers is connective tissue.
A Buy Free Spins button sits at the left of the reels, so the bonus round is available without waiting on scatters. No price is published for the buy, so there’s no figure to quote here. What the purchase delivers is set out in full below.
The stake range is wide enough to matter. At 0.20 a spin this is a genuinely cheap session for a high volatility game, and at 500.00 it’s high-roller territory with a theoretical ceiling of 2,500,000 on a single round. Few book slots stretch that far in both directions.
Book of King Arthur Free Spins
Three or more book scatters trigger the free spins round, and the award is a flat 10 spins. A wheel then spins to pick one expanding symbol from the reel set. Royals and picture symbols alike are candidates: K, A, 10 and J sit on the wheel next to the sword, ship, bow and crown.
- Trigger: three or more book scatter symbols, anywhere on the reels
- Award: 10 free spins
- One expanding symbol chosen by wheel before the first spin
- Candidates: K, A, 10, J, sword, ship, bow and crown
- Retrigger: book scatters award 10 more spins, with no stated cap
During the round, the chosen symbol expands to cover its full reel whenever enough of it land to make a win. A picture symbol landing on three or more reels at once builds line wins across all 10 paylines simultaneously. That’s the engine of the big results in a book game.
The round plays out in a fixed order. Scatters land, the wheel spins, one symbol is marked, and the 10 spins begin. Every spin that follows can expand that symbol across any reel it lands on, and every scatter that lands adds 10 more spins to the counter before the round continues.
Which symbol the wheel picks matters more than anything else in the round. A royal expanding across three reels pays a fraction of what a crown or sword pays in the same position, so two triggers can differ enormously in outcome despite playing identically. The 5,000x cap is reachable rather than decorative – it just needs the right symbol on the right reels.
The round retriggers. Book scatters landing during free spins award another 10 spins on top of whatever remains, and there’s no stated cap on how many times that can happen. A retrigger late in a round, with an expanding symbol already working, is where book slots earn their volatility rating.
The bonus buy covers the same ground from the other direction. Pressing it skips the scatter wait entirely and takes you straight to the wheel and the 10 spins, so the purchase price, whatever the operator sets it at, is buying variance on one spin of that wheel rather than a grind.
Our Honest Verdict
Overall Rating: 7/10
Most of a session here is a wait. Small line wins tick the bankroll over while the scatters decide whether they fancy turning up, and the throne room is a very well-decorated waiting room. The reason somebody sits through it is that wheel: one spin decides which symbol carries the round, and with it, most of what the round can pay.
That’s the strength, too. Two identical triggers can produce wildly different outcomes, the retrigger has no cap, and the 5,000x ceiling is close enough to bite at. The weakness is everything either side of the bonus: no wild, no second feature, nothing between triggers but ornamental line pays. The game spends its whole character in 10 spins and coasts the rest of the time.
It’s for players who already like book slots and want the formula built cleanly, with a stake range that runs from casual to serious. Players who want something happening between bonuses will find it thin. Camelot still holds court – it just makes you wait at the gate.
Book of King Arthur FAQs
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How do you trigger free spins in Book of King Arthur?
Landing three or more book scatter symbols anywhere on the reels triggers 10 free spins. One symbol is then selected by a wheel to expand during the round. -
Can you retrigger the free spins in Book of King Arthur?
Yes. Book scatters landing during the free spins round award an additional 10 spins, and there’s no stated limit on retriggers. -
Can you buy the bonus on Book of King Arthur?
Yes. A Buy Free Spins button sits alongside the reels, letting you purchase the free spins round directly rather than waiting for scatters to land. -
How does the expanding symbol work in Book of King Arthur?
A wheel picks one symbol before the round begins. Whenever enough copies of it land to form a win, it stretches to fill its entire reel and pays across all 10 paylines at once. -
Does Book of King Arthur have a wild symbol?
No. A wild appears nowhere in this game. The book scatter is the only special symbol, triggering the free spins round when three or more land. -
What is the maximum win on Book of King Arthur?
The maximum win is 5,000x your stake. -
What is the RTP of Book of King Arthur?
Book of King Arthur runs at 96% RTP, which is around the industry standard for an online slot. -
What are the minimum and maximum bets on Book of King Arthur?
Stakes run from 0.20 to 500.00 per spin, a wider range than most book slots offer.


