Happy Prisonslots

TrueLabplayed on 9 casinos we readofficial RTP 95.16%–96.07%

Compare

Observed RTP vs officialpaid ÷ wagered over the sampled bets, with a 95% band

24h

72.08%±36.1

8 bets—

64.51%±24.3

295 bets—

30d

64.22%±24.2

308 bets—

90d

64.22%±24.2

308 bets—

All

64.22%±24.2

308 bets—

Per casino, 30d

Housebets

233 bets · below min

Rainbet

57 bets · below min

9 bets · below min

5 bets · below min

2 bets · below min

2 bets · below min

-0.5%78.0%156.5%

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: 563
Wagered: $2,691
Paid: $5,092
Max multiplier: 422.0x
Max payout: $1,410

too earlyNot enough bets over 30d to compare with the official RTP yet. Every spin is independent.

Official RTPas published by each casino

DegenCitydegencity:game.payout96.07%

Gambagamba:games.house_edge96.07%

Gamdomgamdom:rtp96.07%

Goatedgoated:hub88.rtp96.07%

Housebetshousebets:game.rtp96.07%

Metawinmetawin:game.rtp96.07%

Rainbetrainbet:games.payout96.07%

Razedrazed:game.rtp96.07%

Shuffleshuffle:game.edge95.16%

Stakestake:kurator.edge96.07%

Winnawinna:game.rtp96.07%

Multiplier distribution30d, sampled bets

497 sampled spins, 30% of them paid something.

1 in 50: sampled spins paid 10x+
5 spins: paid 100x+, too few to put a 1-in-N figure on
0 spins: paid 1000x+ in this sample

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 497.

From 497 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

Housebets$233233 bets · 39%

Gamdom$1322 bets · 22%

CoinCasino$1002 bets · 17%

Goated$64.169 bets · 11%

Rainbet$61.2957 bets · 10%

Shuffle$13.925 bets · 2%

When players play30d · sampled bets by UTC hour and weekday, since 2 Nov 2026

MonTueWedThuFriSatSun

by hour

Busiest hour: Thu 11:00–12:00 UTC with 243 bets; busiest time of day: 11:00–12:00 UTC; busiest day: Thu. 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

Happy PrisonTrueLabAble...$200200 USD$1,410edge 3.9% · exp. −$7.867.05x6d

Happy PrisonTrueLabCaseIGL$0.780.0149 LTC$330edge 3.9% · exp. −$0.03422.0x5d

Happy PrisonTrueLabCaseIGL$1.300.0248 LTC$314edge 3.9% · exp. −$0.05241.3x4d

Happy PrisonTrueLabCaseIGL$0.780.0149 LTC$164edge 3.9% · exp. −$0.03210.4x4d

Happy PrisonTrueLabCaseIGL$1.300.0248 LTC$157edge 3.9% · exp. −$0.05120.9x4d

Happy PrisonTrueLabCaseIGL$0.520.52 USDT$102edge 3.9% · exp. −$0.02195.5x7d

Happy PrisonTrueLabgra***********$0.130.13 USD$52.07edge 3.9% · exp. −<$0.01400.5x23h

Live RTP by casino30d, refreshes on reload

#	Casino	Observed RTP	Official	Dev.	Bets	Wagered
1	Housebets	51.80%±25.6	96.07%	—	233 bets · below min	$233
2	Rainbet	44.33%±22.5	96.07%	—	57 bets · below min	$61.29
3	Goated	75.04%±37.2	96.07%	—	9 bets · below min	$64.16
4	Shuffle	0.00%±0.00	95.16%	—	5 bets · below min	$13.92
5	CoinCasino	28.57%±31.8	—	—	2 bets · below min	$100
6	Gamdom	123.88%±32.1	96.07%	—	2 bets · below min	$132

About Happy Prisonfrom the figures on this page

Happy Prison is a TrueLab slot. Over the last 30 days we observed 563 bets on it at 9 casinos, too few to measure its RTP over 30 days; the official RTP is 95.16%–96.07%. Its highest multiplier in the last 30 days was 422.0x. The biggest win we saw on it paid $1,410 (7.05x) at Rainbet on 4 Nov 2026. Over the last 30 days it was played most, by wager, at Housebets, Gamdom and CoinCasino.