User Review
2.7 (10 votes)
(10 voti)
SoftwareRelax Gaming

Introducing Hellcatraz from Relax Gaming

Hellcatraz from Relax Gaming is a fun and innovative slot which offers players some excellent gameplay coupled with the potential to land huge wins. Relax Gaming are really pushing the boundaries and producing some innovative and sharp looking slot games. The TNT Tumble which is the high variance grid has a mix of drilling wild multipliers and free spins to provide players with the best gaming experience possible. Hellcatraz is a game with its own distinct style which draws on the excellent ability to create have a stylish and fun slot for all to play.

Theme and Design

This slot offers awesome 8-bit arcade graphics with a backdrop which depicts a scene of San Francisco Bay having its inspiration drawn from the infamous prison block which housed some of the most notorious criminals In America before it was turned into a tourist museum.

Symbols and Game Play

If you have played or are familiar with 8-bit Atari games from the 80s or have enjoyed this type of game online, you will be familiar with the style offered in the slot Hellcatraz. The slot plays out over 6x6 reel grid and you will see the scenery switch from night to day when the game gets underway in conjunction with a move from the base game to the bonus round and this is a fantastic idea and one that is rarely seen in slots.

On your reels you can expect to come across the low paying symbols which are represented by the playing card suits as in clubs, diamonds, hearts, and spades. The high value symbols that you can expect to see include a prison officer, a prison guard, a shady looking criminal boss, handcuffs, a guard’s badge, and a shark. The highest paying symbol is the prison officer and if you land 6 on any of your reels you will be rewarded with two times your bet. The wild in the game is represented by the letter W and this symbol can substitute for all others to create winning combinations.

Return to Player, Pay outs and Variance

There are two volatility settings in this slot, and you get to choose which your play before you begin spinning your reels. Both volatility modes are high, and these are referred to as mixed mode, or lockdown mode. The latter is the higher variance. The mixed mode offers players a return to player of 96.46% and the lockdown mode has a variance of 96.3%. The largest pay out that the game advertises is a massive 51,840 times the stake. For this reason this slot is really aimed at the high risk players and it does provide some very frustrating gaming, however you will see that it can also deliver some fantastic pay outs which come courtesy of some pretty stunning event triggers.

It is important that when you choose your stake you bear this in mind. Those with a modest bankroll should really choose to play at the lowest stake which is 20p per spin however there are plenty of higher options for those who wish to take more of a risk.


When it comes to features Hellcatraz offers players cascading wins, mystery symbols, super free spins which are activated with keys and all of these provide some excellent gameplay as well as winnings. The slot uses the cascading wins format which plays out every time you create a winning line it will be removed from your reels and other symbols will drop down to replace them. If you can create another win the entire process is repeated until no more wins landed.

Mystery symbols are present in slot games today, however, in this slot there is a different twist to how they work. Each symbol has a counter that will drop by one after every cascade on your reels. Once this counter reaches 0 the symbols are revealed and can then contribute towards winning combinations, these counters reset at the end of each cascading sequence. As mentioned above there are two variations of variance and when you are in the lockdown mode the mystery symbols provide the same value. In the mixed mode the value of the symbols is calculated independently and can be different or the same.

Super Free Spins

The Super free spins and key feature is all about collecting the keys. The keys are collected in the base game and are randomly awarded and will appear on top of the regular symbols, once they do the key metre which you will find located on the left of your reels increases by 1 to 10 keys. Once you have collected 2,000 keys The Super free spins feature becomes active.
In the free spins feature you begin with five spins, where the mystery symbols are revealed on each spin even when there is no countdown. In addition, you can land Golden mystery symbols which will award you with further free spins and both enhancements to the feature increase the chances of you landing higher wins.


Hellcatraz the slot from Relax Gaming is intriguing, innovative, and certainly stands out amongst its competitors. Although the mystery symbol features could be compared to some of the big MegaWays games that are currently available, they really are useful when they are used in the cascading wins during the base game and are truly important for unlocking greater wins in the free spins. Therefore, it is vital that you keep your eye out for them and really understand how they work before you start to play, because ultimately this slot is all about the key feature and unlocking the spins.

I really enjoyed playing helped Hellcatraz and although it took a while to build up the 2,000 keys it really was worth the wait. The only thing I would say is that this is a high variance slot and therefore this should be in the forefront of your mind. Happily, I walked away in profit but most of all I really enjoyed the time spent on this gaming experience, and as such have no hesitation in recommending it to all players.

Real Money


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