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Release the Kraken™ slot review

Added by Pragmatic Play. Information last updated: 29/04/2021

User rating:

- (0)

Expert rating:

3.2 (1)

Game information

Game supplier: Pragmatic Play

Release date:01/2020



Max. win:bet x 10000

Mobile version:Support all devices

Play Release the Kraken™


Buy bonus game

Bonus game or special game

Expanding reels

Walking wilds

Colossal symbols


Sea & shore

Fairy tales & fantasy


Movies & TV

Nature & animals

User ratings (0)

Game design:



Game sounds:

Mobile gaming:



Screenshot Screenshot Screenshot
RTP (Return to player):
Max. win:
bet x 10000

Bojoko score (compared to other slots on Bojoko)
Pragmatic Play score (compared to other slots of supplier)

Expert's review Trystan Michielsen

Slot tested

Release The Kraken shows us that not all the monsters living in the depths of the ocean have to be scary, and even the ones that are might have some fun, cartoony-looking friends! This Pragmatic Play slot features Expanding Reels, Free Spins and Walking Wilds.

This 5-reel, 4-row playing field slot with 20 paylines came out in 2020, showing off the studio’s modern graphics and ability to make the slot feel alive. It’s clearly set deep in the ocean with the background showing us a rich coral as well as a sunken galleon. The game itself is filled with mostly static symbols, some of them showing cartoon characters while the low-paying symbols are very simple looking card letters.

The slot doesn’t use too many animations but the ones that are there do look good. The game comes alive when switching between the different bonus game and when features are activated. We’ll see the Kraken loom in the darkness or we’ll have different tentacles presenting us with various options. It’s all done in such a way that the game feels like it’s at least somewhat alive.

When it comes to the music, Release the Kraken doesn’t take too many chances but still manages to surprise somewhat. The song playing in the background feels like one you could hear watching a bombastic action movie taking place on the ocean, which fits the theme well. The sound effects are not as interesting, ranging from simple jingles or bells whenever a win is triggered.


The low-paying symbols in the game are very bland, simple card letters that feel like there wasn’t any thought given to their design. They are presented with a vague pattern on them and different colours, but they do not fit the theme at all. A missed opportunity, if you ask me.

The high-paying symbols are a lot more creative in comparison, portraying different characters presented in a cartoony style. It gives a rather weird disconnect between the Kraken and these since the Kraken is drawn to be intimidating and scary while these have big eyes and cartoon smiles. I’m not sure why the designers went for this choice.

You’ll find the following symbols in the game:

  • Bonus: Appears on reels 1 and 3. Collect these, plus either a Free Spins or Chest Bonus symbol to activate the respective feature.
  • Free Spins: Only appears on reel 5. Collect this plus 2 Bonus symbols to activate the free spins mode.
  • Bonus Chest: Only appears on reel 5. Collect this symbol plus 2 Bonus symbols to activate the Bonus Game.
  • Wild: Wilds substitute all regular symbols in the game. Max. 25x your bet with five-of-a-kind on a win line.
  • Kraken: Max. 25x your bet with five-of-a-kind on a win line.
  • Shark: Max. 12.5x your bet with five-of-a-kind on a win line.
  • Turtle: Max. 10x your bet with five-of-a-kind on a win line.
  • Blue Fish: Max. 7.5x your bet with five-of-a-kind on a win line.
  • Yellow Fish: Max. 5x your bet with five-of-a-kind on a win line.
  • Ace: Max. 4x your bet with five-of-a-kind on a win line.
  • King: Max. 4x your bet with five-of-a-kind on a win line.
  • Queen: Max. 2x your bet with five-of-a-kind on a win line.
  • Jack: Max. 2x your bet with five-of-a-kind on a win line.

The game has quite a high number of symbols but not really the paylines to compensate for it, resulting in its High Volatility. You’ll spend a lot of spins without getting any wins before suddenly being surprised by one or several big wins in a row. In general, my funds stayed rather steady but it did dip below my starting point eventually.

Players can look forward to a max. win of 10,000x your bet, with the ability to pick a bet between £0.20 and £100 per spin. I thought the jackpot is impressive compared to other slots.


Release the Kraken has a pretty big number of features so I’ll dive right in. The features are spaced out rather well, but players can be confronted with any of them at any point.

  • Wilds: Wilds substitute all other symbols in the game, except the Bonus and Free Spins symbols.
  • Free Spins: Players can activate the Free Spins mode with the Free Spins and Bonus Symbols. It’s also possible to trigger the free spins mode manually by paying 100x your bet.
  • Bonus Game: Activate the Bonus Game by getting Bonus Chest and Bonus Symbols on the screen. Players get to pick a chest containing multipliers and coin wins.
  • Expanding Reels: A special feature includes expanding reels to be filled with the same symbol.
  • Walking Wilds: Wilds are added every spin next to existing Wilds.
  • Colossal Symbol: A massive 3x3 Wild is added to the playing field.

During the base game, the Wilds are the most frequent feature to appear on the screen. They act as normal and help with creating wins reasonably often. It’s possible for the Kraken to appear randomly during the base game, holding up 3 signs and allowing the player to pick. Picking any 1 of the 3 will activate a special feature.

These features can be Expanding Reels, Walking Wilds or the Colossal Symbol. The feature is activated once and any wins are immediately awarded. I found all 3 features to be quite interesting, with especially the Walking Wilds often helping in creating bigger wins.

The Bonus Game and Free Spins mode are activated in a rather unique way. On reel 1 and 3 the Bonus symbol appears. This symbol does nothing on its own. On reel 5 you’ll get either the Bonus Chest or Free Spins symbol. If either of these appears in combination with 2 Bonus Symbols, the respective feature is activated.

It’s also possible to activate the free spins mode manually by paying 100x your bet. I kept an eye on my funds and although it’s technically possible to come out with more coins than before you bet, I don’t think it was worth it.

The features all feel unique enough to stay interesting, but there were also quite a lot of them and they frequently paused or slowed down the gameplay. People that enjoy simply spinning the reels without worrying too much about choosing features will probably get annoyed.

In Conclusion

Release the Kraken is a nice example of a pretty average slot with a lot of features and attention to detail. I call it average since it still used the main staples of slot machines, including the standard playing field and the limited number of paylines. At the same time, a large number of features makes every game feel unique.

If you enjoy standard slot machines but like to be kept on your toes I would recommend you give this game a try. The features will take a while to get used to since there are so many, and the ability to trigger the free spins whenever you want might offer some interesting options.

Are you the type of player that prefers either a more standard or a more unique experience? Then you probably won’t find exactly what you want here!

Overall rating:


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  • Features

    Wins and bets

    RTP (Return to Player):96.5%


    Max. win:bet x 10000

    Min. bet:£0.2

    Max. bet:£100

    Progressive jackpot:

    Reels & playlines



    Non-standard layout:

    Max. lines:20

    Min. lines:20

    Win both ways:

    Other features


    Expanding reels:

    Stacked symbols:

    Colossal symbols

    Auto play:

    Turbo play:

    Quick play:

    Virtual reality:

    Bonus features

    Bonus game:

    Random bonus:

    Progressive bonus:

    Buy bonus:

    Free spins:

    Scatter symbols:

    Bonus game symbols:


    Standard wilds:

    Sticky wilds:

    Walking wilds:

    Stacked wilds:

    Random wilds:

    Multiplier wilds:



    Walking re-spins:

    Sticky re-spins:

    Cascading reels:

    Sticky wins:


    You can play Release the Kraken™ in English, Finnish, Swedish, German and 19 other languages.

    All supported languages:
    English, Finnish, Swedish, German, French, Spanish, Italian, Russian, Bulgarian, Polish, Norwegian, Portuguese, Romanian, Serbian, Turkish, Korean, Japanese, Indonesian, Thai, Vietnamese, Malay, Chinese


    Release the Kraken™ supports GBP, EUR, USD, CAD


    Release date 01/2020
    17th newest on Pragmatic Play 373rd newest on Bojoko
    RTP 96.5% 0.46% > average
    13th highest on Pragmatic Play 278th highest on Bojoko
    Win up to 10000 x your bet
    9th highest on Pragmatic Play 270th highest on Bojoko
    Paylines 20 0% < average
    18th highest on Pragmatic Play 578th highest on Bojoko
    Min bet £0.2 per spin
    13th lowest on Pragmatic Play 625th lowest on Bojoko
    Max bet £100 per spin
    14th highest on Pragmatic Play 287th highest on Bojoko
    Rated 0 by 0 members
    2nd most rated on Pragmatic Play 38th most rated on Bojoko
    40 more slots listed by Pragmatic Play

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    Expert's profile


    Trystan Michielsen

    Trystan Michielsen

    Trystan Michielsen is a Dutch native who started his career as a content writer for various small businesses who were interested in creating an online presence.

    When the opportunity arose to move to Malta and work in the iGaming sector, Trystan didn't hesitate to make the plunge. Here he worked as a Content and SEO specialist for different companies before moving back home.

    Now acting as a freelancer he maintains his connection with the online slot community by playing and reviewing the wide variety of videoslots that are released.

    Trystan enjoys playing the slots that offer a full experience, focusing on more than just the technical details but keeping an eye on its presentation. Graphics, music and style can create a game that's more than the sum of its parts.

    A writer at heart, putting thoughts to paper is something he's done for as long as he remembers. In his free time, he enjoys writing fiction as well as watching and reviewing movies.

    Latest reviews:
    Release the Kraken™ cover

    Game supplier:Pragmatic Play

    Release date:01/2020

    RTP (Return to player):96.5%

    Max. win:bet x 10000

    Mobile version:Yes

    User rating: 0
    Expert rating: 3.2

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