Interactive preview
Free demo
Rate this slot
No ratings yet — be the first.
RTP vs catalog median
-0.03 vs medianVolatility 5/5 · catalog median 4/5
Themes
- Book of
Sauron catalog enrichment
Additional source facts
Normalized metadata from the exact provider-and-game identity. These values fill evidence gaps without replacing cross-checked catalog claims.
Sauron catalog observation · 10 Aug 2026. Source-only enrichment is kept separate from editorially verified SlotCodex fields. Availability and restrictions can vary by operator and market. Methodology
- Source RTP
- 96.05%
- Volatility
- high
- Paylines
- 10
- Release
- 2021-09-21
Category
Themes
Features
Platforms
Catalog locales
Editorial analysis
Three hundredths of a percentage point separate this one from the middle of our catalog: 96.05% published by slot.report, against a 96.08% median drawn from 9,226 games with usable RTP data. Call it a dead heat. Where it stops being average is the stake ladder — 0.01 up to 1.00 is a narrow, small-money range by any measure.
A high-volatility Book-of title on five fixed-payline reels
Endorphina, with 230 games in our catalog, keeps the layout traditional: five reels, paylines fixed rather than selectable. Volatility is rated 5 of 5, the harshest band we assign, and slot.report agrees with the "high" label. Expect gaps. No Megaways, no cascading symbols, no progressive pool and no bonus-buy button appear in the specification, so everything happens in the base game and whatever the Book-of mechanic triggers. Our records carry no maximum win figure and no release date either — two blanks we would rather flag than fill with guesswork.
Micro-stake players fit best. Anyone testing a Book-of format on a tight budget will get along with it, though high rollers will find that 1.00 ceiling restrictive.
That 96.05% leaves 3.95% as the house's long-run share. Cap your losses first. Play is 18+ only.
Frequently asked questions
What is the RTP of Book Of Oil?
Book Of Oil has a published RTP (return to player) of 96.05%.
Is Book Of Oil high or low volatility?
Book Of Oil is a high volatility slot (level 5 of 5). Expect larger but less frequent wins.
What is the max win on Book Of Oil?
The maximum win on Book Of Oil is up to 50,000x your stake.
Who makes Book Of Oil?
Book Of Oil is developed by Endorphina.
Can I play Book Of Oil for free?
Yes — you can play the Book Of Oil demo for free on SlotCodex with no deposit and no registration.
How many reels and paylines does Book Of Oil have?
Book Of Oil is played on 5 reels with Fixed paylines.
