---
title: "Grease Monkey by Black Coffee Studios: RTP & biggest wins"
description: "Grease Monkey by Black Coffee Studios: observed RTP 163.04% over 6,361 bets in 30 days vs 96.50% official. Biggest win $56.6K (19.85x) at Stake."
url: https://gambatracker.com/slots/grease-monkey
rendered: 2026-11-11T12:48Z
---

Grease Monkey

[Slots](https://gambatracker.com/slots) / Grease Monkey

# Grease Monkey · slots

[Black Coffee Studios](https://gambatracker.com/providers/black-coffee-studios) played on 7 casinos we read official RTP 96.50%

[Compare](https://gambatracker.com/slots/compare?a=grease-monkey)

[24h](https://gambatracker.com/slots/grease-monkey?window=24h) [7d](https://gambatracker.com/slots/grease-monkey?window=7d) [30d](https://gambatracker.com/slots/grease-monkey) [90d](https://gambatracker.com/slots/grease-monkey?window=90d) [All](https://gambatracker.com/slots/grease-monkey?window=all)

## Observed RTP vs official · paid ÷ wagered over the sampled bets, with a 95% band

24h · 51.74% ±31.7 · 647 bets —

7d · 102.34% ±35.8 · 5,393 bets +0.3σ

30d · 163.04% ±110.5 · 6,361 bets +1.2σ

90d · 163.04% ±110.5 · 6,361 bets +1.2σ

All · 163.04% ±110.5 · 6,361 bets +1.2σ

Per casino, 30d

[Rainbet](https://gambatracker.com/casinos/rainbet) · 59.39% ±16.62 4,101 bets

[Yeet](https://gambatracker.com/casinos/yeet) · 195.20% ±162.99 2,191 bets

[Stake](https://gambatracker.com/casinos/stake) · 69 bets · below min

31.5% 203.3% 375.0%

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 game · all sampled bets

- **Bets**: 10,822
- **Wagered**: $715K
- **Paid**: $1.1M
- **Max multiplier**: 2,839x
- **Max payout**: $56.6K

normal +0.3σ Past observed results over 30d: +0.3σ above the official RTP. Every spin is independent.

## Official RTP · as published by the studio and each casino

[Black Coffee Studios](https://gambatracker.com/providers/black-coffee-studios) studio.engine.io 96.50%

[Rainbet](https://gambatracker.com/casinos/rainbet) rainbet:games.payout 96.50%

[Razed](https://gambatracker.com/casinos/razed) razed:game.rtp 96.50%

[Stake](https://gambatracker.com/casinos/stake) stake:kurator.edge 96.50%

[Stake.us](https://gambatracker.com/casinos/stake-us) stake:kurator.edge 96.50%

[Thrill](https://gambatracker.com/casinos/thrill) thrill:games-state.rtp 96.50%

[Winna](https://gambatracker.com/casinos/winna) winna:game.rtp 96.50%

[Yeet](https://gambatracker.com/casinos/yeet) yeet:games-by-tag.returnToPlayer 96.50%

## Game facts · from studio.engine.io

A slot with high volatility and wins up to 20,000× the bet, released in October 2026.

- **RTP**: 96.50%
- **Volatility**: High
- **Released**: Oct 2026

Max win 20,000x, not hit in the feeds since 2 Nov 2026

Demos aren't available in your country. We hide demos where casino links are hidden, and in the UK.

From [studio.engine.io](https://studio.engine.io/insights/games/black-coffee-studios/grease-monkey) · read 11h ago [Studio page ↗](https://studio.engine.io/insights/games/black-coffee-studios/grease-monkey)

## Multiplier distribution · 30d, sampled bets

7,081 sampled spins, 31% of them paid something.

- **1 in 36**: sampled spins paid 10x+
- **1 in 393**: sampled spins paid 100x+
- **0 spins**: paid 1000x+ in this sample

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 7,048.

From 7,081 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 played · 30d, share of sampled wagering

[Yeet](https://gambatracker.com/casinos/yeet) $56.2K 2,191 bets · 67%

[Rainbet](https://gambatracker.com/casinos/rainbet) $20.8K 4,101 bets · 25%

[Stake](https://gambatracker.com/casinos/stake) $7,045 69 bets · 8%

## When players play · 30d · sampled bets by UTC hour and weekday, since 2 Nov 2026

Mon Mon 00:00–01:00 UTC: 5 bets, $239 wagered Mon 01:00–02:00 UTC: 4 bets, $103 wagered Mon 02:00–03:00 UTC: 42 bets, $2,742 wagered Mon 03:00–04:00 UTC: 91 bets, $27.8K wagered Mon 04:00–05:00 UTC: 68 bets, $26.3K wagered Mon 05:00–06:00 UTC: 32 bets, $1,764 wagered Mon 06:00–07:00 UTC: 12 bets, $153 wagered Mon 07:00–08:00 UTC: 92 bets, $5,560 wagered Mon 08:00–09:00 UTC: 81 bets, $2,248 wagered Mon 09:00–10:00 UTC: 93 bets, $3,589 wagered Mon 10:00–11:00 UTC: 21 bets, $494 wagered Mon 11:00–12:00 UTC: 26 bets, $255 wagered Mon 12:00–13:00 UTC: 25 bets, $224 wagered Mon 13:00–14:00 UTC: 29 bets, $452 wagered Mon 14:00–15:00 UTC: 46 bets, $1,286 wagered Mon 15:00–16:00 UTC: 128 bets, $19.9K wagered Mon 16:00–17:00 UTC: 86 bets, $2,155 wagered Mon 17:00–18:00 UTC: 89 bets, $1,722 wagered Mon 18:00–19:00 UTC: 143 bets, $15.6K wagered Mon 19:00–20:00 UTC: 63 bets, $6,387 wagered Mon 20:00–21:00 UTC: 64 bets, $500 wagered Mon 21:00–22:00 UTC: 111 bets, $2,511 wagered Mon 22:00–23:00 UTC: 376 bets, $31.8K wagered Mon 23:00–00:00 UTC: 152 bets, $2,535 wagered Tue Tue 00:00–01:00 UTC: 66 bets, $1,923 wagered Tue 01:00–02:00 UTC: 75 bets, $1,514 wagered Tue 02:00–03:00 UTC: 93 bets, $3,018 wagered Tue 03:00–04:00 UTC: 151 bets, $3,259 wagered Tue 04:00–05:00 UTC: 81 bets, $1,212 wagered Tue 05:00–06:00 UTC: 157 bets, $3,458 wagered Tue 06:00–07:00 UTC: 221 bets, $2,077 wagered Tue 07:00–08:00 UTC: 52 bets, $1,185 wagered Tue 08:00–09:00 UTC: 39 bets, $498 wagered Tue 09:00–10:00 UTC: 26 bets, $2,408 wagered Tue 10:00–11:00 UTC: 131 bets, $377 wagered Tue 11:00–12:00 UTC: 98 bets, $1,407 wagered Tue 12:00–13:00 UTC: 17 bets, $113 wagered Tue 13:00–14:00 UTC: 8 bets, $209 wagered Tue 14:00–15:00 UTC: 34 bets, $523 wagered Tue 15:00–16:00 UTC: 32 bets, $603 wagered Tue 16:00–17:00 UTC: 36 bets, $49.94 wagered Tue 17:00–18:00 UTC: 27 bets, $1,047 wagered Tue 18:00–19:00 UTC: 58 bets, $1,331 wagered Tue 19:00–20:00 UTC: 82 bets, $4,358 wagered Tue 20:00–21:00 UTC: 79 bets, $3,716 wagered Tue 21:00–22:00 UTC: 96 bets, $4,680 wagered Tue 22:00–23:00 UTC: 153 bets, $874 wagered Tue 23:00–00:00 UTC: 128 bets, $828 wagered Wed Wed 00:00–01:00 UTC: 146 bets, $34.7K wagered Wed 01:00–02:00 UTC: 96 bets, $2,152 wagered Wed 02:00–03:00 UTC: 69 bets, $4,780 wagered Wed 03:00–04:00 UTC: 69 bets, $2,286 wagered Wed 04:00–05:00 UTC: 54 bets, $1,242 wagered Wed 05:00–06:00 UTC: 83 bets, $13.3K wagered Wed 06:00–07:00 UTC: 63 bets, $5,819 wagered Wed 07:00–08:00 UTC: 38 bets, $1,940 wagered Wed 08:00–09:00 UTC: 36 bets, $149 wagered Wed 09:00–10:00 UTC: 28 bets, $473 wagered Wed 10:00–11:00 UTC: 40 bets, $14.8K wagered Wed 11:00–12:00 UTC: 21 bets, $267 wagered Wed 12:00–13:00 UTC: 37 bets, $308 wagered Wed 13:00–14:00 UTC: 4 bets, $50.25 wagered Wed 14:00–15:00 UTC: 20 bets, $65.00 wagered Wed 15:00–16:00 UTC: 38 bets, $152 wagered Wed 16:00–17:00 UTC: 15 bets, $130 wagered Wed 17:00–18:00 UTC: 28 bets, $1,711 wagered Wed 18:00–19:00 UTC: 85 bets, $6,202 wagered Wed 19:00–20:00 UTC: 17 bets, $180 wagered Wed 20:00–21:00 UTC: 33 bets, $693 wagered Wed 21:00–22:00 UTC: 67 bets, $368 wagered Wed 22:00–23:00 UTC: 2 bets, $252 wagered Wed 23:00–00:00 UTC: 6 bets, $422 wagered Thu Thu 00:00–01:00 UTC: 9 bets, $9.00 wagered Thu 01:00–02:00 UTC: 67 bets, $206 wagered Thu 02:00–03:00 UTC: 74 bets, $186 wagered Thu 03:00–04:00 UTC: 11 bets, $46.41 wagered Thu 04:00–05:00 UTC: 0 bets, $0 wagered Thu 05:00–06:00 UTC: 3 bets, $54.00 wagered Thu 06:00–07:00 UTC: 6 bets, $1,217 wagered Thu 07:00–08:00 UTC: 11 bets, $1,270 wagered Thu 08:00–09:00 UTC: 37 bets, $383 wagered Thu 09:00–10:00 UTC: 0 bets, $0 wagered Thu 10:00–11:00 UTC: 11 bets, $620 wagered Thu 11:00–12:00 UTC: 17 bets, $231 wagered Thu 12:00–13:00 UTC: 3 bets, $106 wagered Thu 13:00–14:00 UTC: 46 bets, $1,015 wagered Thu 14:00–15:00 UTC: 38 bets, $720 wagered Thu 15:00–16:00 UTC: 8 bets, $52.00 wagered Thu 16:00–17:00 UTC: 13 bets, $21.00 wagered Thu 17:00–18:00 UTC: 11 bets, $10.4K wagered Thu 18:00–19:00 UTC: 13 bets, $32.20 wagered Thu 19:00–20:00 UTC: 14 bets, $167 wagered Thu 20:00–21:00 UTC: 3 bets, $3.60 wagered Thu 21:00–22:00 UTC: 14 bets, $201 wagered Thu 22:00–23:00 UTC: 35 bets, $1,280 wagered Thu 23:00–00:00 UTC: 30 bets, $1,590 wagered Fri Fri 00:00–01:00 UTC: 113 bets, $4,799 wagered Fri 01:00–02:00 UTC: 65 bets, $1,040 wagered Fri 02:00–03:00 UTC: 58 bets, $1,518 wagered Fri 03:00–04:00 UTC: 120 bets, $40.6K wagered Fri 04:00–05:00 UTC: 140 bets, $10.4K wagered Fri 05:00–06:00 UTC: 124 bets, $8,954 wagered Fri 06:00–07:00 UTC: 197 bets, $16K wagered Fri 07:00–08:00 UTC: 40 bets, $1,003 wagered Fri 08:00–09:00 UTC: 59 bets, $1,616 wagered Fri 09:00–10:00 UTC: 61 bets, $1,627 wagered Fri 10:00–11:00 UTC: 71 bets, $6,522 wagered Fri 11:00–12:00 UTC: 126 bets, $6,145 wagered Fri 12:00–13:00 UTC: 73 bets, $9,523 wagered Fri 13:00–14:00 UTC: 76 bets, $4,717 wagered Fri 14:00–15:00 UTC: 88 bets, $2,347 wagered Fri 15:00–16:00 UTC: 98 bets, $2,985 wagered Fri 16:00–17:00 UTC: 67 bets, $16.3K wagered Fri 17:00–18:00 UTC: 37 bets, $1,402 wagered Fri 18:00–19:00 UTC: 64 bets, $2,272 wagered Fri 19:00–20:00 UTC: 45 bets, $1,392 wagered Fri 20:00–21:00 UTC: 71 bets, $765 wagered Fri 21:00–22:00 UTC: 57 bets, $1,621 wagered Fri 22:00–23:00 UTC: 52 bets, $6,663 wagered Fri 23:00–00:00 UTC: 105 bets, $7,945 wagered Sat Sat 00:00–01:00 UTC: 59 bets, $2,862 wagered Sat 01:00–02:00 UTC: 67 bets, $663 wagered Sat 02:00–03:00 UTC: 205 bets, $9,764 wagered Sat 03:00–04:00 UTC: 103 bets, $2,624 wagered Sat 04:00–05:00 UTC: 46 bets, $669 wagered Sat 05:00–06:00 UTC: 95 bets, $8,847 wagered Sat 06:00–07:00 UTC: 62 bets, $1,691 wagered Sat 07:00–08:00 UTC: 34 bets, $295 wagered Sat 08:00–09:00 UTC: 33 bets, $442 wagered Sat 09:00–10:00 UTC: 36 bets, $195 wagered Sat 10:00–11:00 UTC: 25 bets, $1,165 wagered Sat 11:00–12:00 UTC: 133 bets, $35.2K wagered Sat 12:00–13:00 UTC: 55 bets, $44.84 wagered Sat 13:00–14:00 UTC: 81 bets, $2,539 wagered Sat 14:00–15:00 UTC: 52 bets, $347 wagered Sat 15:00–16:00 UTC: 61 bets, $1,429 wagered Sat 16:00–17:00 UTC: 83 bets, $21.7K wagered Sat 17:00–18:00 UTC: 37 bets, $851 wagered Sat 18:00–19:00 UTC: 69 bets, $874 wagered Sat 19:00–20:00 UTC: 73 bets, $5,720 wagered Sat 20:00–21:00 UTC: 88 bets, $3,653 wagered Sat 21:00–22:00 UTC: 69 bets, $3,045 wagered Sat 22:00–23:00 UTC: 177 bets, $2,261 wagered Sat 23:00–00:00 UTC: 108 bets, $12.3K wagered Sun Sun 00:00–01:00 UTC: 77 bets, $1,522 wagered Sun 01:00–02:00 UTC: 66 bets, $2,082 wagered Sun 02:00–03:00 UTC: 75 bets, $4,041 wagered Sun 03:00–04:00 UTC: 29 bets, $245 wagered Sun 04:00–05:00 UTC: 52 bets, $1,046 wagered Sun 05:00–06:00 UTC: 57 bets, $937 wagered Sun 06:00–07:00 UTC: 58 bets, $655 wagered Sun 07:00–08:00 UTC: 91 bets, $5,609 wagered Sun 08:00–09:00 UTC: 28 bets, $132 wagered Sun 09:00–10:00 UTC: 26 bets, $2,927 wagered Sun 10:00–11:00 UTC: 107 bets, $5,181 wagered Sun 11:00–12:00 UTC: 63 bets, $742 wagered Sun 12:00–13:00 UTC: 35 bets, $110 wagered Sun 13:00–14:00 UTC: 23 bets, $455 wagered Sun 14:00–15:00 UTC: 52 bets, $1,510 wagered Sun 15:00–16:00 UTC: 20 bets, $273 wagered Sun 16:00–17:00 UTC: 52 bets, $600 wagered Sun 17:00–18:00 UTC: 64 bets, $1,749 wagered Sun 18:00–19:00 UTC: 53 bets, $5,582 wagered Sun 19:00–20:00 UTC: 292 bets, $86.2K wagered Sun 20:00–21:00 UTC: 73 bets, $3,144 wagered Sun 21:00–22:00 UTC: 101 bets, $2,782 wagered Sun 22:00–23:00 UTC: 33 bets, $524 wagered Sun 23:00–00:00 UTC: 49 bets, $176 wagered

by hour

Busiest hour: Mon 22:00–23:00 UTC with 376 bets; busiest time of day: 22:00–23:00 UTC; busiest day: Fri. Observed on the public feeds we read, a sample: when people were seen playing, not when anyone should. Hours are UTC.

## Biggest hits · largest payouts we saw on this game

[Stake](https://gambatracker.com/casinos/stake) [Grease Monkey Black Coffee Studios](https://gambatracker.com/slots/grease-monkey) Hidden $2,853 2,853 USDT $56.6K edge 3.5% · exp. −$99.87 19.85x 2026-11-06 03:27 UTC

[Stake.us](https://gambatracker.com/casinos/stake-us) [Grease Monkey Black Coffee Studios](https://gambatracker.com/slots/grease-monkey) Hidden $18.00 18 SWEEPS $51.1K edge 3.5% · exp. −$0.63 2,839x 2026-11-05 05:11 UTC

[Yeet](https://gambatracker.com/casinos/yeet) [Grease Monkey Black Coffee Studios](https://gambatracker.com/slots/grease-monkey) [SpicerQQ](https://gambatracker.com/players/yeet/SpicerQQ) $2,000 2,000 USD $47.3K edge 3.5% · exp. −$70.00 23.65x 2026-11-04 00:24 UTC

[Rainbet](https://gambatracker.com/casinos/rainbet) [Grease Monkey Black Coffee Studios](https://gambatracker.com/slots/grease-monkey) Hidden $2,000 2,000 USD $25.3K edge 3.5% · exp. −$70.00 12.64x 2026-11-06 16:20 UTC

[Rainbet](https://gambatracker.com/casinos/rainbet) [Grease Monkey Black Coffee Studios](https://gambatracker.com/slots/grease-monkey) [aweb...](https://gambatracker.com/players/rainbet/aweb...) $1,000 1,000 USD $20K edge 3.5% · exp. −$35.00 20.00x 2026-11-09 04:14 UTC

[Rainbet](https://gambatracker.com/casinos/rainbet) [Grease Monkey Black Coffee Studios](https://gambatracker.com/slots/grease-monkey) [Loga...](https://gambatracker.com/players/rainbet/Loga...) $1,000 1,000 USD $19.7K edge 3.5% · exp. −$35.00 19.72x 2026-11-08 19:39 UTC

[Stake](https://gambatracker.com/casinos/stake) [Grease Monkey Black Coffee Studios](https://gambatracker.com/slots/grease-monkey) Hidden $800 800 USDC $16K edge 3.5% · exp. −$28.00 20.00x 2026-11-03 17:40 UTC

[Yeet](https://gambatracker.com/casinos/yeet) [Grease Monkey Black Coffee Studios](https://gambatracker.com/slots/grease-monkey) [shanaya](https://gambatracker.com/players/yeet/shanaya) $715 715 USD $14.3K edge 3.5% · exp. −$25.04 20.00x 2026-11-02 18:26 UTC

[Rainbet](https://gambatracker.com/casinos/rainbet) [Grease Monkey Black Coffee Studios](https://gambatracker.com/slots/grease-monkey) [aweb...](https://gambatracker.com/players/rainbet/aweb...) $700 700 USD $14.1K edge 3.5% · exp. −$24.50 20.17x 2026-11-09 04:24 UTC

[Rainbet](https://gambatracker.com/casinos/rainbet) [Grease Monkey Black Coffee Studios](https://gambatracker.com/slots/grease-monkey) [aweb...](https://gambatracker.com/players/rainbet/aweb...) $1,000 1,000 USD $12.5K edge 3.5% · exp. −$35.00 12.47x 2026-11-07 16:55 UTC

## Live RTP by casino · 30d, refreshes on reload

[24h](https://gambatracker.com/slots/grease-monkey?window=24h) [7d](https://gambatracker.com/slots/grease-monkey?window=7d) [30d](https://gambatracker.com/slots/grease-monkey) [90d](https://gambatracker.com/slots/grease-monkey?window=90d) [All](https://gambatracker.com/slots/grease-monkey?window=all)

| # | Casino | Observed RTP | Official | Dev. | Bets | Wagered |
| --- | --- | --- | --- | --- | --- | --- |
| 1 | [Rainbet](https://gambatracker.com/casinos/rainbet) | 59.39% ±16.6 | 96.50% | −4.4σ | 4,101 | $20.8K |
| 2 | [Yeet](https://gambatracker.com/casinos/yeet) | 195.20% ±163.0 | 96.50% | +1.2σ | 2,191 | $56.2K |
| 3 | [Stake](https://gambatracker.com/casinos/stake) | 212.67% ±161.9 | 96.50% | — | 69 bets · below min | $7,045 |

## About Grease Monkey · from the figures on this page

Grease Monkey is a Black Coffee Studios slot. Over the last 30 days we observed 6,361 bets on it at 7 crypto casinos, returning 163.04% (95% band 52.49%–273.58%) against an official RTP of 96.50%. Its highest multiplier in the last 30 days was 2,839x. The biggest win we saw on it paid $56.6K (19.85x) at Stake on 6 Nov 2026. Over the last 30 days it was played most, by wager, at Yeet, Rainbet and Stake.

## More from Black Coffee Studios · 30 days, by observed wagering

[Studio →](https://gambatracker.com/providers/black-coffee-studios)

[The Summit](https://gambatracker.com/slots/the-summit) High vol. Demo $2.29M

[Polish Grandmas Kitchen](https://gambatracker.com/slots/polish-grandmas-kitchen) Very high vol. Demo $1.94M

[Kaiju Crashout](https://gambatracker.com/slots/kaiju-crashout) High vol. Demo 115.01%

[Raygun Riot](https://gambatracker.com/slots/raygun-riot) Very high vol. Demo 126.13%

[The Deep](https://gambatracker.com/slots/the-deep) High vol. Demo $462K

[Carat Crater](https://gambatracker.com/slots/carat-crater) High vol. Demo 110.18%

[Final Boss](https://gambatracker.com/slots/final-boss) High vol. Demo 162.56%

[Gas Money](https://gambatracker.com/slots/gas-money) Very high vol. Demo $124K

Compare with

- [The Summit](https://gambatracker.com/slots/compare/grease-monkey-vs-the-summit)
- [Polish Grandmas Kitchen](https://gambatracker.com/slots/compare/grease-monkey-vs-polish-grandmas-kitchen)
- [Kaiju Crashout](https://gambatracker.com/slots/compare/grease-monkey-vs-kaiju-crashout)
- [Raygun Riot](https://gambatracker.com/slots/compare/grease-monkey-vs-raygun-riot)

18+

**These are past, observed results.** Every spin and round is independent: a hot or cold streak says nothing about what happens next, and no figure on this site improves anyone's odds. Gambling can be harmful.

[BeGambleAware](https://www.begambleaware.org/) [Gamblers Anonymous](https://www.gamblersanonymous.org/) [Help & limits](https://gambatracker.com/responsible-gambling)

How these figures are produced and labelled: https://gambatracker.com/llms.txt