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Das xBoot slot review

Added by Nolimit City. Information last updated: 02/11/2021

User rating:

- (0)

Expert rating:

3.8 (1)

Game information

Game supplier: Nolimit City

Release date:09/2021



Max. win:bet x 55200

Mobile version:Support all devices

Play Das xBoot



Expanding reels



Buy bonus game



Sea & shore

Adventure & action

Movies & TV

User ratings (0)

Game design:



Game sounds:

Mobile gaming:



Screenshot Screenshot Screenshot
RTP (Return to player):
Max. win:
bet x 55200

Bojoko score (compared to other slots on Bojoko)
Nolimit City score (compared to other slots of supplier)

Expert's review Trystan Michielsen

Slot tested

Das xBoot is the adaptation of the famous German film released in 1981 about life aboard a U-boat during World War 2. This slot not only uses the visuals and characters from the film but also adds a non-standard playing field, expanding reels and free spins to the experience.

The game has a distinct art style that I have come to associate with its developer Nolimit City, who have released several games in 2021 with a similar look. The setting and theme are completely original though, which I appreciate. The game is played on a non-standard playing field with 6 reels in ascending and then descending size. Reels 1 and 6 are 2 rows, reels 2 and 5 are 3 rows and the middle reels are 4 rows each.

During the base game, the slot has 576 paylines but this can grow into 75,712 ways to win as the game does feature expanding reels. This has to be unlocked first by triggering the free spins mode. Some countries allow the player to activate this bonus mode manually but this is not possible for UK players.

When it comes to its presentation, I thought this slot does a great job. The game looks gritty, with the portrays of the crew showing them looking distressed or panicked. In the background, we can see part of the U-boat itself deep below the waves. There are also some subtle animations, like the radar screen spinning.


Das xBoot doesn’t go out of its way to introduce a lot of original symbols. Although the high-paying symbols are new and designed specifically for this slot, this is common across most slots. The low-paying symbols meanwhile are simple card letters, another thing we often see in other games. It does kind of detract from the setting and the theme, especially since such care was taken to make it look appropriate.

Players are looking at a slot with High Volatility if they decide to give it a try. Its non-standard playing field makes it harder to get a win and the payouts aren’t very high. I found the best way to get a bigger win was to trigger the free spins mode. Unfortunately, that was rare. The game has an RTP of 96.03% which is a hair above average.

If we’re looking at the options for players, one of them is to augment their bets. Players can pick a bet between £0.25 and £100 per spin. There is also a maximum win. In this case, the jackpot is 55,200x your bet. A very big win, even when compared to other slots with the same volatility. However, the circumstances that allow someone to walk away with this prize are difficult to attain.

The symbols you’ll encounter in this slot are:

  • xNudge Wild: A 4-row high wild that turns into normal Wilds. Wilds substitute all regular symbols in the game.
  • xWays: This symbol reveals a random regular symbol.
  • xBomb: The xBomb symbol will explode all symbols that are not part of a winning combination, apart from special symbols.
  • Bonus: The Bonus symbol will activate the free spins mode when 3 or more are present on the screen.
  • Captain: Max. 20x your bet with six-of-a-kind on a winning bet line.
  • Periscope: Max. 10x your bet with six-of-a-kind on a winning bet line.
  • Mechanic: Max. 4.8x your bet with six-of-a-kind on a winning bet line.
  • Sonar man: Max. 4x your bet with six-of-a-kind on a winning bet line.
  • Cook: Max. 3.2x your bet with six-of-a-kind on a winning bet line.
  • Ace: Max. 2.8x your bet with six-of-a-kind on a winning bet line.
  • King: Max. 2.8x your bet with six-of-a-kind on a winning bet line.
  • Queen: Max. 2x your bet with six-of-a-kind on a winning bet line.
  • Jack: Max. 2x your bet with six-of-a-kind on a winning bet line.
  • 10: Max. 1.4x your bet with six-of-a-kind on a winning bet line.


Das xBoot seems rather simple at first but has some interesting features that change up the gameplay. As such, I don’t think it’ll be a great fit for players that only prefer classic slots.

The features include:

  • Wilds: Wilds substitute all regular symbols in the game.
  • Multipliers: xWays and xBombs increase multipliers during the free spins mode.
  • Free Spins: Get 3 Bonus symbols on the screen to activate the Silent Hunter free spins game. With 4 bonus symbols on the screen, the Wolf Pack free spins game is stated.
  • Expanding Reels: During the Silent Hunter mode, reel 3 is expanded to 8 rows high.
  • Random Symbols: The xWays symbol turns itself into a random symbol. If more xWays appear on the screen, they all change into the same symbol.
  • Cascading Reels: When an xBomb appears on the screen it will destroy all regular symbols and cause new symbols to drop in.

I don’t know if it was intentional but a large number of features and mechanics on a smaller playing field makes the slot feel very cluttered. This reminds me of the movie and the way the U-boat is portrayed. As such it could be a very clever way of showing the player what the environment was inside the submarine.

Either way, players will have to get used to a number of different features. I thought they were largely quite entertaining but not very impactful on the game. Only the Wolf Pack free spins mode offered me any big wins, but that was exceptionally hard to trigger. As a result, I noticed a steep decline in my funds as I played.

In Conclusion

Das xBoot brings players deep underwater to experience something most of us will never have to live through. The presentation of the game is excellent, with beautiful graphics and a style that makes it feel pretty authentic. There are a lot of small details in the slot to make it very interesting to pay attention to.

The gameplay will likely only appeal to players that are looking for a more modern slot with innovations and newer features. None of them is truly unique but their combination makes it feel more original. I would recommend checking out the paytable to see how everything works. I didn’t think that the game itself explains it properly while you’re playing.

For big rollers, the massive jackpot will likely be a huge incentive to try this game. Even though it won’t be easy to get your hands on it, the possibility still exists. Even if you don’t manage it, I do believe players that enjoy complicated slots with lots of features will get a kick out of this game. If you’re into submarines, you should also try this slot.

Overall rating:


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  • Features

    Wins and bets

    RTP (Return to Player):96.03%


    Max. win:bet x 55200

    Min. bet:£0.25

    Max. bet:£100

    Progressive jackpot:

    Reels & playlines



    Non-standard layout:

    Max. lines:75712

    Min. lines:576

    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 Das xBoot in English, Finnish, Swedish, German and 12 other languages.

    All supported languages:
    English, Finnish, Swedish, German, French, Spanish, Russian, Danish, Dutch, Latvian, Norwegian, Turkish, Korean, Japanese, Chinese


    Das xBoot supports GBP, EUR, SEK, NOK and 9 other currencies.

    All supported currencies:
    GBP (£), EUR (€), SEK (kr), NOK (kr), DKK (kr), RUB (₽), ZLN (zł), CZK (Kč), USD ($), NZD ($), CAD (C$), AUD ($)


    Release date 09/2021
    2nd newest on Nolimit City 40th newest on Bojoko
    RTP 96.03% 0.01% < average
    28th highest on Nolimit City 817th highest on Bojoko
    Win up to 55200 x your bet
    4th highest on Nolimit City 87th highest on Bojoko
    Paylines 75712 378460% > average
    4th highest on Nolimit City 59th highest on Bojoko
    Min bet £0.25 per spin
    31st lowest on Nolimit City 1,008th lowest on Bojoko
    Max bet £100 per spin
    The highest on Nolimit City 287th highest on Bojoko
    Rated 0 by 0 members
    2nd most rated on Nolimit City 38th most rated on Bojoko
    35 more slots listed by Nolimit City

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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:
    Das xBoot cover

    Game supplier:Nolimit City

    Release date:09/2021

    RTP (Return to player):96.03%

    Max. win:bet x 55200

    Mobile version:Yes

    User rating: 0
    Expert rating: 3.8

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