Zillion Games
Book of the Cleo
Slots · Released July 23, 2026
A 1.98% hit frequency is one paying spin in fifty, and the only game here that publishes a thinner figure is its own stablemate Royal Crown Wheel at 1.97%. Zillion Games builds the same way twice. What the thinness funds is modest: a 1,675x ceiling, thirteenth smallest of the 219 published, and a 95.35% return near the bottom of the 220. Expanding symbols, carried by no other game here, are the mechanism.
Book of the Cleo at a glance
95.35%
RTP
High
Volatility
1,675x
Max win
5x3
Grid
Paylines
Pays by
1.98%
Hit frequency
Play the Book of the Cleo demo
Virtual credits only, nothing wagered.
Where to play for real money
Parimatch
CAD depositsAccepts players from across Canada and takes deposits in Canadian dollars.
Ontario licenses its own operators through iGO and AGCO . Check what applies where you live.
How Book of the Cleo pays
The game runs on 5 reels of 3 rows, 15 positions in total.
Book of the Cleo is rated high volatility. Its 95.35% return sits below the 96.2% median of the 220 games published here, which is the only benchmark available: Zillion Games has too few pages on this site to have a median of its own.
The ceiling is 1,675x the stake, so a $1 spin caps at $1,675.
It is the 20th of 22 2026 releases from Zillion Games that we track, following Royal Crown Wheel.
Zillion Games publishes the 95.35% return, the 1,675x ceiling and the 1.98% hit frequency on its own page for Book of the Cleo at zillion.games.
What Book of the Cleo actually does
Book of the Cleo pays by paylines across a 5x3 grid, the format on 88 of the 221 games in this catalogue.
Free Spins is the round the rest feeds, with expanding symbols changing how it behaves once it starts. The 1,675x ceiling is reachable there and effectively nowhere else.
Expanding Symbols is the unusual one on this card: 1 of the 221 games here carry it.
| Mechanic | What it does |
|---|---|
| Free Spins | Spins awarded without a stake |
| Hold And Win | Lock symbols, respin the rest |
| Jackpot | Separate top prize pool |
| Wild | Substitutes for regular symbols |
| Scatter | Pays or triggers from anywhere |
| Expanding Symbols | A symbol grows to fill its reel |
Expanding Symbols
A selected symbol stretches to cover the whole reel when it lands, so partial coverage becomes full coverage. This is a common free spins mechanic where the expanding symbol is chosen at the start of the round.
Setting and presentation
Egyptian. Pharaohs, tombs and hieroglyphs, one of the oldest and most crowded themes in slot design.
Gold. Bullion, coins and ingots as the visual language, typically paired with cash collection or hold and win mechanics.
Games like Book of the Cleo
| Game | Provider | RTP | Volatility | Max win | Released |
|---|---|---|---|---|---|
| Royal Crown Wheel | Zillion Games | 95.2% | high | 1,000x | 2026-07-16 |
| Pharaoh Luck | Onlyplay | 95.5% | high | 10,000x | 2026-07-09 |
| Epic Ape: Blitz Cash Collect | Playtech | 95.6% | high | 10,000x | 2026-03-16 |
| Sugar Rush 1000 | Pragmatic Play | 95.5% | very-high | 25,000x | 2024-03-18 |
| Egyptian Dreams Deluxe | Habanero | 96.7% | high | 2,500x | 2018-08-01 |
| 3 Buffalo's Fireshoe | Zillion Games | 95.87% | high | 3,000x | 2026-07-09 |
Royal Crown Wheel is the nearest match of the 6: they share Free Spins, Hold And Win and Jackpot, and it runs 95.2% against its 95.35%.
5 of the 6 published returns above beat 95.35%, topped by Egyptian Dreams Deluxe at 96.7%, and Royal Crown Wheel sits lowest at 95.2%.
Its 1,675x ceiling is well under the 3,000x middle of that set, where Sugar Rush 1000 reaches 25,000x.
5 of the 6 rated games there share its high volatility; Sugar Rush 1000 is the exception at very-high.
2 of the 6 come from Zillion Games as well; the rest are Onlyplay, Playtech and Pragmatic Play.
It is the most recent of the 7 dated here, 96 months on from Egyptian Dreams Deluxe.
Free Spins is the mechanic they have most in common with it, on 5 of the 6. Hold And Win is the one only 2 of them shares.
Book of the Cleo questions
What does the 1.98% hit frequency mean?
That Zillion Games measures a paying spin roughly once in fifty, counting every win including ones smaller than the stake. Only 68 of the 221 games here publish the figure at all, and this is the second lowest of them. It is unusual against a 1,675x ceiling, since most games this thin hold back a far larger prize.
How does Book of the Cleo compare with the other Zillion Games titles?
It sits between them. 3 Buffalo's Fireshoe returns 95.87% with a 3,000x ceiling, Royal Crown Wheel 95.2% with 1,000x, and this one 95.35% with 1,675x. All three are rated high and all three return under the 96.2% median of the 220 games published here.
What is the RTP of Book of the Cleo?
95.35%, as published by Zillion Games, which has too few pages on this site to have a median of its own. Against the 220 published returns across the whole catalogue it is 0.85 points below the 96.2% median. 190 of those pages publish a higher figure and 29 a lower one.
Can I play Book of the Cleo for free?
Yes. The build above is the one Zillion Games ships, at the same 95.35% return and the same 1,675x ceiling; only the credits are virtual, and there is no deposit or signup. It runs the same 5 reels of 3 rows, 15 positions in total as the paid build.
What is the maximum win on Book of the Cleo?
The ceiling is 1,675x the stake, so a $1 spin caps at $1,675. Across the 219 published ceilings the median is 10,000x, and 206 of them reach further than this one. At a $5 spin that is $8,375.
Ready to play Book of the Cleo for real money?
Written by Tasho Tashev
Slots & Crypto-Casino Editorial Author