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Das xBoot Slot

Das xBoot
Das xBoot
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Updated: 14.10.2025
Reviewed by: Fabio Duarte
In this new release, Nolimit City invites the player to join the German team in a typical WWII submarine. It can sail quietly and unnoticed for a while, but a sudden bonus will surely cause a streak of big wins. Today we will tell you about all the bonus features of this slot, its RTP, volatility, the scheme of the playing field and where you can play it for real money or in demo mode!

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In this review
  1. Slot details
  2. Theme
  3. Bonus Rounds & Free Spins
  4. Summary
  5. Where to play
General information about Das xBoot slot

General information about Das xBoot slot

Rating by Fabio Duarte:
8
User’s Rating: (based on  reviews):
9.0
Nolimit City
Write a review +25 SJ points
  • Release Date:
    14.09.2021
  • Volatility:
    High
  • RTP:
    96.0%
  • Multiplier:
    Yes
  • Max. win:
    55,200x
  • Bonus game:
    No
  • Free spins:
    Yes
  • Scatter Symbol:
    Yes
  • Wild symbol:
    Yes
  • Symbol Stacked:
    No
  • Jackpot Game:
    No
  • Slot lines:
    75,712
  • Slot reels:
    6
  • Layout:
    6-8
  • Stakes range (€/£/$):
    0.25 to 100
  • Slot Theme:
    War
  • Technology:
    JS, HTML5
More infoLess info

Live stats from Slotsjudge

Slotsjudge employs its proprietary simulator, running 10,000 rounds daily across various games and providing frequently updated data; the latest figures for Das xBoot (updated) reflect the most recent analysis. The simulated RTP stands at 66.72%, which is notably lower than the declared RTP of 96.0%, suggesting that in practical play, players may experience less favorable returns, especially given the game’s high volatility. With a hit frequency of 23.83%, the game hits relatively often but typically awards smaller wins, averaging around 2.8 times the stake, while the maximum payout reaches up to 366 times the initial bet. This combination points to a high-risk gaming experience, where large wins are possible but occur infrequently. Overall, the data suggests that Das xBoot offers the potential for significant rewards, tempered by the inherent unpredictability associated with high-volatility slots.
  • Declared RTP:
    96.0%
  • Simulated RTP:
    66.0%
  • Bets sum:
    €10,000
  • Wins sum:
    €6,672
  • Bets:
    10,000
  • Average Win:
    €2.8
  • Max Win Observed:
    €366
  • Bonus Frequency:
    42
  • Hit Rate:
    23.0%
  • Wins:
    2,383
More infoLess info

Licensed and tested by

  • AGCO
  • Gambling Comission
  • ISO 27001
  • MGA
  • ONJN
  • Spel inspectionen

How to Play

You find yourself on a typical submarine from the Second World War. The base game is filled with XNudge Wilds, Wild multipliers, and xWays symbols. You can activate the Silent Hunter Bonus Round and the Wolf Pack Bonus Round at any time. Don't want to wait? Use the Bonus Buy option. It is included as usual, but not in all jurisdictions.

To start playing, you need to do just a few simple things:

  • Launch the game (in demo mode or for real money)
  • Open the menu to view the paytable and read the rules
  • Click on the “Bet” button to select the stake size: from €0.25 to €100

That's all. Enjoy intense gameplay filled with bonus features!

Das xBoot RTP and Volatility

8.2 
Das xBoot slot has high volatility and RTP range between 96.03% and 94.04%.
This is where you have to deal with high volatility. This means that your submarine can sail quietly and unnoticed for a while, but sooner or later you will find yourself on a series of major victories. You also have to deal with adjustable RTP ranges, which is not very cool. The game comes with 96.03% or 94.04% RTP.

Theme

8.2 

Capturing the claustrophobic atmosphere aboard a WWII submarine is at least unusual for a slot machine. The sounds of the underwater world and the ominous soundtrack are perfectly matched to each other and immerse in the action. We also love that you can look inside the periscope deck as the xBomb removes symbols.

Every detail has been meticulously crafted to fit this theme, from the expanded periscope reel in Silent Hunter to the launch of the torpedoes in the Wolf Pack. The retro comic visuals look perfect here and we say thank you to Nolimit City for such a creative contribution to the industry.

Theme
During the session, pay attention to the medals as they are special symbols that are of great benefit. 4-row high Wild is always nudge to be fully visible and replaces all standard characters. Each nudge of such a symbol increases the wi multiplier by 1. The xWays symbol only lands on reels 2 and 5 and reveal a random regular symbol. Its size can range from 2-3 symbols.
  • Lieutenant Commander
    Lieutenant Commander
    pays 20x, 6x, 3x, or 0.88x for 6, 5, 4, or 3 symbols on a line
  • Periscope Operator
    Periscope Operator
    pays 10x, 3.20x, 0.60x, or 0.40x for 6, 5, 4, or 3 symbols per line
  • Engineer
    Engineer
    pays 4.80x, 1.60x, 0.52x, or 0.32x for 6, 5, 4, or 3 symbols on a line
  • Radio operator
    Radio operator
    pays 4x, 1.20x, 0.48x or 0.28x for 6, 5, 4 or 3 symbols on a line
  • Chef
    Chef
    pays 3.20x, 0.88x, 0.40x, or 0.28x for 6, 5, 4, or 3 symbols on a line
  • Ace
    Ace
    pays 2.80x, 0.80x, 0.36x, or 0.24x for 6, 5, 4, or 3 symbols on a payline
  • King
    King
    pays 2.80x, 0.72x, 0.36x or 0.24x for 6, 5, 4 or 3 symbols on a payline
  • Queen
    Queen
    pays 2x, 0.68x, 0.32x or 0.20x for 6, 5, 4 or 3 symbols on a payline
  • Jack
    Jack
    pays 2x, 0.68x, 0.32x or 0.20x for 6, 5, 4 or 3 symbols on a line
  • Ten
    Ten
    pays 1.40x, 0.52x, 0.24x, or 0.20x for 6, 5, 4, or 3 symbols on a payline
  • Scatter
    Scatter
    symbol can land on reels 2-5; Landing 3 symbols in main game will trigger 8 SILENT HUNTER SPINS. Landing 4 symbols will trigger 8 WOLF PACK SPINS
  • xWays
    xWays
    symbol can land only on reel 2 and 5; It will reveal a random regular symbol; The size of the xWays symbol can range from 2-3 symbols; If more than one xWays symbol lands on the reels, then all xWays symbols will reveal the same symbol
  • xBomb Wild
    xBomb Wild
    symbol substitutes for any symbol except Bonus symbols; Explodes all symbols that are not part of a winning combination except Scatter and other Wild symbols
  • xNudge Wild
    xNudge Wild
    a 4-row high Wild symbol that will always nudge to fully visible; Each nudge increases a Wild multiplier by 1; The xNudge Wild can only land on reel 3 and 4 except for in SILENT HUNTER SPINS where it can land on reel 4 only

Mobile compatibility

Mobile compatibility
The provider develops all of its games using HTML5. This allows them to open up and work well on a wider range of devices, including tablets, smartphones, and desktops. You don't need to worry about the operating system you are using as their slots work fine with all of them. Play Das xBoot anywhere!

About Nolimit City

Nolimit City software can be found in almost every licensed casino. It is a great solution provider specializing in creating immersive games for PC and mobile. The company was founded in 2014, but this team of professionals has been developing games for over 10 years. They value quality over quantity and offer some of the most visually appealing products in the industry. The company only creates slot machines, and each of them has great graphics, gorgeous sound effects and an unusual theme. Some of their most popular releases are Thor: Hammer Time, Hot Nudge, Ice Ice Yeti, and Tesla Jolt.

Bonus Rounds & Free Spins

8.8 

Silent Hunter

You need 3 Scatters to trigger the Silent Hunter feature. This gives you 8 free spins and you will see the 3rd reel expand into an 8-row high periscope reel. Landing the same symbols on reels 1 and 2 and Periscope Wild on reel 3, you activate the Torpedo Launch feature.

Das xBoot - Slot

You will see enemy ships, and a torpedo is fired into one of them. If you manage to sink the target, the Periscope Wild symbol will expand to cover the entire 3rd reel. The global win multiplier increases by +1 for each torpedo attack trigger, and the periscope multiplier increases by +1 per push before the entire reel is covered.

Wild will not change if you miss the target and you will win 2 extra free spins for each additional Scatter.

Wolf Pack

The Wolf Pack feature is triggered when 4 Locator Scatter symbols land on the playing field. The torpedo tube will appear under reels 2-5. When Wild Torpedoes land on reels 2-5, a metal symbol xWays drops to help complete the torpedo, and each starts with 2x as a value. The value increases by +1 for each new torpedo dropdown menu, up to a maximum of 9x. Completing the torpedo by filling in all 4 positions triggers the launch of the torpedo and this reveals the xWays symbols you created. Reels 2 and 5 will turn into the number of xWays symbols you have collected, and positions 3 and 4 will turn into the corresponding number of xWays Wild symbols. Each torpedo launch increases the win multiplier by +1, and Scatter gives 2 extra free spins upon landing.

Bonus Buy option

Here you can instantly go to the bonus feature using the Bonus Buy option. UK players cannot do this, but if you are eligible, go ahead! In the purchased feature Silent Hunter or Wolf Pack, RTP increases to 96.56% or 96.57%, respectively.

Das xBoot Demo play

Not ready to play for real money? Nolimit City has taken care of the availability of a Demo mode. You can use it right on this page by clicking on "Play Demo"! In this mode, you can familiarize yourself with bonus features, rules and spin the reels for free, but you will not be able to win real prizes.

Max Win

10 
The maximum you can win in the slot is 55,200x the wager.
The maximum win here is 55,200x the stake. Is this a lot? Yes, even for a high-risk game. Nobody says that it will be easy to win, but there are enough bonus features here and they are triggered quite often. Most likely, you will unleash the potential in the Wolf Pack Bonus Round of the highest level with xWays symbols, a progressive multiplier, and free spins.

Overall Rating

8

We are delighted with this release! Nolimit City has done an incredible job and provided us with a high-quality slot on an unusual theme. Its atmosphere is very tense, but this is what we expected from a war-themed slot, right?

We also love the variety of bonus features. The Silent Hunter feature with 8-row high periscope reel and Torpedo Launch feature and the top tier Wolf Pack feature can bring you up to 55,200x the stake, which is a lot even for high volatility. Are you ready to compete for big wins by dealing with high volatility? Then this slot is for you!

Hits
1x4 xNudge Wilds
Max win is 55,200x your stake
2-level Bonus Round
Progressive multiplier
xWays on reels 2-5
Misses
High volatility
Bonus features are hard to understand the first time
Adjustable RTP ranges

FAQ

What are the Highest Paid Symbols in this Game?

Pay attention to Lieutenant Commander and Periscope Operator as these symbols pay up to 20x and 10x the stake, respectively!

Is this new slot machine for real money only?

No, you also can run this game in test mode on this page! Start the game and click on "Play Demo" to place stakes with virtual coins and not real money.

What is the Return to Player (RTP) in this Game?

Here you have to deal with adjustable RTP ranges: 96.03% or 94.04%. By using the Bonus Buy option, you will increase the return.

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Fabio Duarte
Fabio Duarte
Expert in: News, Blog, Slot reviews, Payments
Fabio is a young writer with +6 years of experience in gambling & betting. Fabio creates professional reviews of casino and slots. Every single article Fabio made exhibits deep analytical skill and comprehensive coverage of a topic. It’s Fabio – one of the leading authors on slotsjudge.com.

2162 articles

Reviewed by Editor-in-Chief
Nikita Lukanenoks

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Overall rating

Based on 1 reviews

9/10
JacoNick own avatar
JacoNick
1 lvl Rookie
9
Winning: $552000
Multiplier: x55200

NoLimit City always offers great slots with interesting theme. Tried this one and wasn't disappointed. Wolf Pack Spins brought amazing win.

Review image 588-0
19.04.2022
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