Return to player
96.83%
Min bet size
0.10
Game type
Video Slots
Variance
High
Reels
5
Progressive Jackpot
No
Popularity
Max bet size
25
Game provider
Relax Gaming
Bonus Features
Yes
Paylines
46.656
Theme
Alcatraz
Hellcatraz online slot game
Hellcatraz video slot is an awesome eighties-style slot game with cheesy graphics and tons of features. Choose between 2 game modes, reveal mystery symbols, reap the rewards of cascading reels, trigger free spins by collecting keys, or simply buy the bonus using a ‘buy feature’!
Theme and Story Line
Hellcratraz is an 80s style slot game taken from the famous Alcatraz prison. There cops, inmates, and prison guards spinning on the reels set on a prison island in the USA!
Graphics, Sounds, and Animations
As Relax Gaming is going for the eighties look and feel, the reels are fuzzy-looking giving you eighties-style gaming graphics similar to an old Spectrum computer used back in this era. The slot’s background is set during sunset overlooking San Franciso’s city skyline and Golden Gate Bridge. Police sirens blare out from US police squad cars and Hellcatraz prison ships bobble on the city’s waters. You will also be treated to eighties-style animated effects as well as a bubbly theme tune.
Top Casinos to Play Hellcatraz:
iWild Casino
100% up to €500 + 100 Free Spins
Lucky Dreams Casino
100% up to €500 + 100 Free Spins
Vulkan Vegas Casino
100% up to €300 + 25 Free Spins
Rolling Slots Casino
100% up to €500 + 100 Free Spins
Rizk Casino
100% up to €500 + 100 Free Spins
Gameplay
There are 2 modes to choose from which are ‘Mixed Mystery Symbols’ and ‘Lockdown Mystery Symbols’. When the reels open up you will be introduced to a 6x6 grid system with cascading symbol wins. Behind the reels, there are 46,656 way- to-win!
Your job is to line up any of the 9 regular symbols into combinations of 3, 4, 5, or 6. The total spin bet payouts for lining up 6 symbols on a pay line are as follows:
- Prison Guard - 2x
- Inmate - 1.2x
- Shark - 1x
- Guard Badge - 0.8x
- Handcuffs - 0.6x
- Playing Card Suits - 0.4x
There is a 10th symbol on reels 2-6. This is the Hellcatraz slot’s wild which is the ‘W’. It will substitute for any of the above regular symbols as a wildcard.
Bonuses and Free Spins
Cascading Reels: All winning symbols explode off the reels and are replaced by new ones in an attempt to give you more winning combinations for the price of a single spin.
Mystery Symbols: Mystery symbols are available in all game modes and free spins. They are numbers and will reveal their prize after a certain number of cascades. The number is a counter on, and once it reaches 0, it will give you a mystery win.
Super Free Spins: 5 spins are awarded when you collect 2,000 keys. The Mystery symbols in free spins do not have a counter, so they will reveal your prize as soon they hit the reels.
Collecting Keys: Keys are laid on top of regular symbols and award 1-10 when they land In view. Quite often multiple keys will land on the reels giving you 50 to 100 keys.
Feature Buy: Choose to buy either ‘full feature free spins’ or ‘top-up’. The ‘full feature’ purchase awards 2,000 keys instantly while ‘top-up’ will fill up your current key count to 2,000.
Mixed-mode Vs Lockdown Mystery Symbols: In mixed mode, the mystery symbol counters start at are mixed from 1 to 5 while in lockdown mode they all start at 5 but reveal bigger prizes.
Bet sizes, RTP and Variance
Min-Max bets of 0.10-25.00 are set under the ‘$’ sign option. Then, you can find the slot’s RTP under the ‘?’ menu which is 96.46% for lockdown mode and 96.30% for mixed-mode. If you use the ‘Feature Buy’, the RTP is 96.83%. As for the variance, this depends on the game mode:
- Mixed Mystery Symbols – High Variance
- Lockdown Mystery Symbols – Super High Volatile
Conclusion
The 2 game modes, a buy feature, mystery symbols, the free spins bonus trigger along with cascading reels may not be features that are new to the virtual world of video slots, but there are very few slots that have integrated all of these features into one. With that in mind, Hellcatraz and its retro eighties design make this a unique slot game worth trying out!
James is a casino games expert on the Playcasino.com editorial team. With many years of professional experience at a leading casino game development company and a passion for playing casino games, James has become a true expert in slots, blackjack, roulette, baccarat, and other games.
James uses this expertise to provide reliable, insider advice through his reviews and guides, breaking down the game rules and offering tips to help you win more often. Rely on James's extensive experience for expert advice on your casino play.
