Book of Monstersslots
Observed RTP vs officialpaid ÷ wagered over the sampled bets, with a 95% band
24h
598.35%±928.0
110 bets—
7d
304.61%±288.1
975 bets—
30d
266.93%±238.2
1,145 bets+1.4σ
90d
266.93%±238.2
1,145 bets+1.4σ
All
266.93%±238.2
1,145 bets+1.4σ
Per casino, 30d
-0.5%2308.3%4617.0%
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
- 1,552
- Wagered
- $30.5K
- Paid
- $97.5K
- Max multiplier
- 2,500x
- Max payout
- $18.8K
too earlyNot enough bets over 30d to compare with the official RTP yet. Every spin is independent.
Official RTPas published by the studio and each casino
Game factsfrom pragmaticplay.com
A slot, released in March 2025.
- RTP
- 96.50%
- Released
- Mar 2025
- Free spins
- Gamble
- Bonus game
Demos aren't available in your country. We hide demos where casino links are hidden, and in the UK.
From pragmaticplay.com · read 8d agoStudio page ↗, opens in a new tab
Multiplier distribution30d, sampled bets
1,257 sampled spins, 51% of them paid something.
- 1 in 19
- sampled spins paid 10x+
- 6 spins
- paid 100x+, too few to put a 1-in-N figure on
- 0 spins
- paid 1000x+ in this sample
0
0-1
1-2
2-5
5-10
10-50
50-100
100-1000
1000+
- Observed swings
- Compared once a slot has 20,000 sampled spins staked $0.10 or more in this window; this one has 1,175.
From 1,257 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: Mon 03:00–04:00 UTC with 331 bets; busiest time of day: 03:00–04:00 UTC; busiest day: Mon. 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 | Yeet | 1839.88%±2776.2 | 96.50% | — | 482 bets · below min | $1,268 |
| 2 | Gamdom | 82.94%±50.5 | 96.50% | — | 219 bets · below min | $3,329 |
| 3 | BC.Game | 85.66%±54.2 | — | — | 127 bets · below min | $3,373 |
| 4 | 500 Casino | 42.77%±37.3 | — | — | 80 bets · below min | $508 |
| 5 | Rollbit | 533.87%±376.2 | 96.50% | — | 69 bets · below min | $2,920 |
| 6 | Rainbet | 5.01%±4.72 | 96.50% | — | 59 bets · below min | $489 |
| 7 | Spartans | 457.26%±814.1 | 96.50% | — | 41 bets · below min | $1.53 |
| 8 | Goated | 20.35%±22.5 | 96.50% | — | 29 bets · below min | $4.62 |
| 9 | Roobet | 22.06%±19.3 | — | — | 23 bets · below min | $5,046 |
| 10 | Shuffle | 109.61%±117.1 | 96.50% | — | 6 bets · below min | $140 |
| 11 | Stake | 105.90%±125.2 | 96.50% | — | 5 bets · below min | $79.44 |
| 12 | Duel | 4.98%±0.06 | 96.50% | — | 3 bets · below min | $120 |
| 13 | Acebet | 11.82%±25.9 | 96.50% | — | 2 bets · below min | $20.64 |
About Book of Monstersfrom the figures on this page
Book of Monsters is a Pragmatic Play slot. Over the last 30 days we observed 1,145 bets on it at 21 crypto casinos, returning 266.93% (95% band 28.73%–505.13%) against an official RTP of 96.50%. Its highest multiplier in the last 30 days was 2,500x. The biggest win we saw on it paid $18.8K (268.6x) at Yeet on 11 Nov 2026. Over the last 30 days it was played most, by wager, at Roobet, BC.Game and Gamdom.
