TrueLab Games
Happy Prison
Play Happy Prison slot by TrueLab Games for free in demo mode! Explore RTP, bonus rounds, and key features before playing for real.
RTP
95.16%
return to player
Volatility
High volatility
variance
Max win
10,000×
top multiplier
Min bet
$0.20
per spin
Reels
5
4096 lines
Player rating
3.8 ★
13 votes
Why this score
High confidence (100%)Five weighted signals shape the composite. Four context signals refine ties. See how we rate for the full methodology.
Payouts & RTP8/10
RTP 95.16% → 8.0/10
Volatility9/10
high → 9.0/10
Win Potential8/10
x10000.00 (10000×) → 8.0/10
Features8.5/10
11 features → 8.5/10
Game Mechanics10/10
f=11 r=5 p=4096 → 10.0/10
Context signals (tie-breakers)
Layout6/10
5x3 → 6.0/10
Bet Flexibility8/10
0.2–500 (×2500) → 8.0/10
Provider Reputation7.5/10
provider avg 7.5 → 7.5/10
Popularity4/10
synthetic proxy → 4.0/10
DEMO Play free, no signup
TrueLab Games
Spec sheet
Happy Prison at a glance.
Math
Index score79
RTP95.16%
VolatilityHigh volatility
Max win10,000×
Bet range$0.20 – $500.00
Player rating3.8 / 5 · 13 votes
Format
Reels5
Paylines4096
Layout5x3
Features
Themes
Compare Happy Prison with other games
 Happy Prison Score 79This game |  Grape Escape Score 75 |  An Escape from Al Catraz Score 68 |  Breakout Bob Score 81 |  Emoji Slot Score 64 | |
|---|---|---|---|---|---|
| Identity | |||||
| Studio | Belatra Games This provider has been reviewed and approved by the SlotRanker team. What does this mean? | ||||
| Released | — | 6/15/2013 | 6/9/2017 | 10/9/2020 | 7/8/2014 |
| Math | |||||
| RTP | 95.16% | 95.15% | 95.58% | 96.52% | 94% |
| Volatility | High volatility | Low/Medium | Low volatility | High volatility | Medium volatility |
| Max win | 10,000× | — | 1,500× | 10,000× | — |
| Format | |||||
| Reels | 5 | 5 | 5 | 5 | 5 |
| Layout | 5x3 | 5x3 | 5x3 | 5x3 | 5x3 |
| Paylines | 4096 | 25 | 9 | 6 | 25 |
| Min bet | 0.20 | 0.01 | 9.00 | 0.05 | 0.25 |
| Max bet | 500.00 | 5000.00 | 180.00 | 500.00 | 25.00 |
| Features | |||||
| Progressive | — | ✓ | ✓ | — | — |
| Wild symbol | ✓ | ✓ | ✓ | ✓ | ✓ |
| Free spins | ✓ | ✓ | — | ✓ | ✓ |
| Scatter symbol | ✓ | ✓ | ✓ | ✓ | ✓ |
| Multiplier | — | ✓ | — | ✓ | — |
| Bonus game | ✓ | — | ✓ | — | ✓ |
| Respins | — | — | — | — | — |
Every number is shown as a delta against Happy Prison.
Comparing against
Happy Prison
TrueLab Games
RTP
95.16%
Max win
10,000×
Score
79
Grape Escape
Habanero
RTP
95.15%same
Volatility
Low/MediumMax win
—
Score
75▼−4
+ Progressive+ Multiplier− Bonus Game
An Escape from Al Catraz
Belatra Games
RTP
95.58%▲+0.4
Volatility
Low volatilityMax win
1,500×▼−8,500
Score
68▼−11
+ Progressive− Free Spins
Breakout Bob
Playtech Vikings
RTP
96.52%▲+1.4
Volatility
High volatilityMax win
10,000×same
Score
81▲+2
+ Multiplier− Bonus Game
Emoji Slot
MrSlotty
RTP
94%▼−1.2
Volatility
Medium volatilityMax win
—
Score
64▼−15
Same feature set
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