Book of Oilslots
Observed RTP vs officialpaid ÷ wagered over the sampled bets, with a 95% band
24h
53.36%±42.9
154 bets—
7d
101.63%±44.0
2,094 bets+0.3σ
30d
57.61%±18.5
5,367 bets−4.1σ
90d
57.61%±18.5
5,367 bets−4.1σ
All
57.61%±18.5
5,367 bets−4.1σ
Per casino, 30d
-0.5%798.3%1597.0%
The marker is the RTP each casino publishes for this game. An amber bar means that figure is outside the 95% band of what we observed there; grey bars are below the minimum sample.
This gameall sampled bets
- Bets
- 6,394
- Wagered
- $7,907
- Paid
- $31K
- Max multiplier
- 1,031x
- Max payout
- $6,370
normal+0.3σPast observed results over 30d: +0.3σ above the official RTP. Every spin is independent.
Official RTPas published by the studio and each casino
Game factsfrom endorphina.com
A 5×3 10-line slot with high volatility.
- RTP
- 96.05%
- Volatility
- High
- Bet range
- €0.10 – €45
- Layout
- 5 × 3 · 10 lines
- Free spins
- Gamble
Demos aren't available in your country. We hide demos where casino links are hidden, and in the UK.
From endorphina.com · read 1d agoStudio page ↗, opens in a new tab
Multiplier distribution30d, sampled bets
5,500 sampled spins, 33% of them paid something.
- 1 in 71
- sampled spins paid 10x+
- 1 in 500
- sampled spins paid 100x+
- 1 spin
- paid 1000x+, too few to put a 1-in-N figure on
0
0-1
1-2
2-5
5-10
10-50
50-100
100-1000
1000+
- Studio volatility
- High
- Observed swings
- Compared once a slot has 20,000 sampled spins staked $0.10 or more in this window; this one has 4,388.
From 5,500 sampled spins; a small sample swings a lot, and every spin is independent. Bar height is square-root scaled so the rare high buckets stay visible. Hover a bar for the count.
Where it is played30d, share of sampled wagering
When players play30d · sampled bets by UTC hour and weekday, since 2 Nov 2026
MonTueWedThuFriSatSun
by hour
Busiest hour: Wed 08:00–09:00 UTC with 1,080 bets; busiest time of day: 08:00–09:00 UTC; busiest day: Wed. Observed on the public feeds we read, a sample: when people were seen playing, not when anyone should. Hours are UTC.
Biggest hitslargest payouts we saw on this game
Live RTP by casino30d, refreshes on reload
| # | Casino | Observed RTP | Official | Dev. | Bets | Wagered |
|---|---|---|---|---|---|---|
| 1 | Housebets | 68.84%±22.2 | 96.00% | −2.4σ | 4,072 | $2,182 |
| 2 | 500 Casino | 115.04%±49.3 | — | — | 667 bets · below min | $211 |
| 3 | Shock | 68.32%±43.4 | — | — | 255 bets · below min | $17.99 |
| 4 | Acebet | 20.09%±7.10 | 96.00% | — | 137 bets · below min | $31.60 |
| 5 | Gamdom | 45.72%±29.8 | 96.00% | — | 101 bets · below min | $3,821 |
| 6 | Rainbet | 20.64%±17.2 | 96.00% | — | 57 bets · below min | $34.02 |
| 7 | Rollbit | 37.69%±27.3 | 96.00% | — | 38 bets · below min | $662 |
| 8 | BC.Game | 68.01%±44.3 | — | — | 15 bets · below min | $166 |
| 9 | CoinCasino | 127.68%±51.2 | — | — | 13 bets · below min | $2.00 |
| 10 | Stake | 568.29%±1027.8 | 96.00% | — | 7 bets · below min | $49.67 |
| 11 | Shuffle | 0.00%±0.00 | 96.00% | — | 3 bets · below min | $57.00 |
| 12 | Yeet | 450.00%±98.0 | — | — | 2 bets · below min | $0.80 |
About Book of Oilfrom the figures on this page
Book of Oil is a Endorphina slot. Over the last 30 days we observed 5,367 bets on it at 16 crypto casinos, returning 57.61% (95% band 39.14%–76.08%) against an official RTP of 96.00%–96.05%. Its highest multiplier in the last 30 days was 1,031x. The biggest win we saw on it paid $6,370 (318.5x) at Shuffle on 4 Nov 2026. Over the last 30 days it was played most, by wager, at Gamdom, Housebets and Rollbit.
More from Endorphina30 days, by observed wagering
Compare with