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Hellcatraz Slot by Relax Gaming

Hellcatraz
Hellcatraz
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Updated: 22.07.2025
Reviewed by: Ella Houghton

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In this review
  1. Slot details
  2. Theme
  3. Hellcatraz Bonus Features
  4. Summary
  5. Where to play
General information about Hellcatraz slot

General information about Hellcatraz slot

Rating by Ella Houghton:
9.2
User’s Rating: Not rated yet
Relax Gaming
Write a review +25 SJ points
  • Release Date:
    05.05.2020
  • Volatility:
    High
  • RTP:
    96.8%
  • Multiplier:
    Yes
  • Max. win:
    51,840x
  • Bonus game:
    No
  • Free spins:
    Yes
  • Scatter Symbol:
    No
  • Wild symbol:
    Yes
  • Symbol Stacked:
    No
  • Jackpot Game:
    No
  • Slot lines:
    46,656
  • Slot reels:
    6
  • Layout:
    6-6
  • Stakes range (€/£/$):
    0.10 to 20
  • Slot Theme:
    Police
  • Technology:
    HTML5
More infoLess info

Licensed and tested by

  • AGCO
  • eCogra
  • Gambling Comission
  • HM Goverment of Gibraltar
  • MGA
  • ONJN

Hellcatraz is available on all gaming platforms. You can access and play for free on desktop, mobile devices, and tablets. Hellcatraz is a prison-themed game inspired by San Francisco’s own Alcatraz. It displays retro 8-bit graphics and two modes for playing: Mixed and Lockdown, where volatility levels are high (and very high!).  

With 46,656 paylines and an RTP range of 96.46%–96.83%, the slot game is very volatile and engaging for high roller players. On 6 reels and 6 lines, any winning symbol can be earned on all rows.

Gameplay

9.2 
Gameplay

Mobile compatibility

Mobile compatibility

Hellcatraz Bonus Features

8.2 

Game Symbols

Hellcatraz’s game symbols are very diverse. For low-paying symbols, it features play card values like diamonds, hearts, and clubs. The medium-paying symbols are themed around police: it comes in the form of handcuffs, sharks, and a police badge. 

Notably, the highest paying symbol to keep watch for is the police officer. Its rewards can double your stake for six of a kind.

The wild symbol is a bright orange “W” and features mystery symbols where the value of numbers drops by 1 and is only revealed once it reaches zero. Instead of scatter symbols, key symbols are something to truly watch out for.

Bonus Rounds and Free Spins

The unique feature for earning free spins is by collecting key symbols. Each of the keys collected offers 1–10 keys to boost the meter. This bonus round is full of mystery symbols where winning symbols are replaced with new icons. 

Additionally, the Super Free Spins feature is activated once 2,000 keys have been accumulated. You also have the Bonus Buy at 200x your stake. 

Overall Rating

9.2

When it comes to the features, Hellcatraz has many unique plays to offer – from retro graphics to the collection of keys. The gameplay is highly volatile with 46,656 ways to win which is most suitable for high roller players.

Hits
Interactive visuals
Engaging gameplay
Key collecting feature
Two play modes
Misses
Highly competitive / volatile
Mystery symbols at the base game

Hellcatraz Slot - FAQ

Do I need to make a deposit to play this game?

No, you do not need to make a deposit to play the game. You can play for free on trusted casino websites or mobile apps.

What is the most valuable symbol in Hellcatraz?

The most valuable symbol is a police officer. Earning the officer can 2x your stake for 6 of a kind. 

What is the Return to Player rate of Hellcatraz?

The RTP of Hellcatraz is between 96.46%- 96.83% varying between Mixed or Lockdown mode. 

Can I earn real cash prizes in Hellcatraz?

Yes, with 46,656 ways to win, you can earn real cash prizes from the game. The highest reward is up to 51,840x 

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Ella Houghton
Ella Houghton
Expert in: News, Blog, Slot reviews, Payments
Ella is a professional content-writer with 8 years of experience in the casino sphere. She has broad knowledge of gambling related themes and is happy to share this with Slotsjudge.

2126 articles

Reviewed by Editor-in-Chief
Nikita Lukanenoks

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