Das xBoot
Das xBoot is a submarine-themed slot from Nolimit City, released in September 2021. Its story follows a crew searching for lost gold on the sea floor during the Second World War, presented with dark, cinematic visuals. The setting is a historical backdrop rather than the focus; the real draw is the way the game combines three of the studio’s mechanics.
Das xBoot uses xNudge, xWays and xBomb together on an unusual 2-3-4-4-3-2 grid, with two free spins modes on top. Nolimit City rates it as Extreme volatility with a maximum win of 55,200x the bet. This guide covers how each element works, using the official numbers from Nolimit City’s game page.
Where to Play Das xBoot
Das xBoot is available at casinos that offer Nolimit City games. The casinos below list Nolimit City among their providers, accept Australian players and are reviewed on BetsAuthority. Confirm the RTP in the game info before you start.
Quick Facts About Das xBoot
| Parameter | Details |
|---|---|
| Slot | Das xBoot |
| Provider | Nolimit City |
| Release | 14 September 2021 |
| Layout | 6 reels in a 2-3-4-4-3-2 shape |
| RTP | 96.03% (provider figure; lower versions may exist) |
| Volatility | Extreme (Nolimit City rating) |
| Hit frequency | 22.17% |
| Bet range | 0.25 to 100 per spin (casino limits may differ) |
| Maximum win | 55,200x the bet (about 1 in 64 million) |
| Free spins frequency | About 1 in 211 spins |
| Mechanics | xNudge, xWays, xBomb |
| Bonus buy | Yes, where allowed |
How Das xBoot Works
The six reels are shaped like a diamond, with two positions on the outer reels and four on the middle reels. Wins are formed by matching symbols on adjacent reels from left to right, and winning symbols are removed so new ones can fall in. Nolimit City lists a hit frequency of 22.17%, so roughly one spin in five produces a win.
xNudge Wilds
The xNudge Wild is four rows tall and always nudges until it is fully visible. Every nudge adds +1 to its multiplier, so a wild that lands with only its top showing and nudges three times becomes a multiplier wild worth more than one that lands in place. On the middle reels, which are four rows high, a single xNudge Wild covers the whole reel.

xWays Symbols
The xWays symbol always reveals 2 to 3 of the same symbol, adding positions to its reel and increasing the number of ways. If several xWays symbols land on the same spin, they all reveal the same kind of symbol, which can link up a strong combination across the grid.
xBomb Wild Multiplier
The xBomb counts as a wild and, when it explodes, blows away the non-winning symbols from the reel to make room for new symbols to fall in. Each xBomb also increases the win multiplier by 1 before the next collapse. In both free spins modes, xBombs award a sticky win multiplier that stays for the rest of the feature.

Silent Hunter Spins
Three bonus symbols award 8 Silent Hunter Spins. During this round reel 3 grows to 8 rows. Landing a winning combination together with the Periscope Wild on reel 3 starts a torpedo launch sequence. If the torpedo hits its target, the Periscope Wild fills reel 3 to the top and then nudges down to the bottom, adding a win multiplier for each nudge downwards. A successful hit also increases the win multiplier for the remainder of the feature.

Wolf Pack Spins
Four bonus symbols award 8 Wolf Pack Spins, the top bonus. Here you load the torpedo bay by collecting xWays Wild symbols, and when all four torpedo parts are collected a torpedo is launched. Every launch increases the win multiplier by 1, and xBombs add their own sticky multipliers. Wolf Pack is where the 55,200x cap is most realistic, but it is much rarer than Silent Hunter.

Bonus Buy
Where permitted, the Nolimit Bonus lets you buy straight into a feature. Review sites list Silent Hunter at about 75x the bet and Wolf Pack at about 350x. Prices are shown in the game’s buy menu, and the option is removed in some regulated markets.
RTP Versions: Check Before You Play
Nolimit City publishes an RTP of 96.03% for Das xBoot, the top configuration. Casinos can choose lower settings, and a version around 94.02% has been reported. The game looks and plays the same in every version, so read the RTP in the game info at your casino.
Worked Example: Stacking Multipliers
Imagine a Wolf Pack round at A$1. Early on, an xBomb explodes and leaves a sticky 1x addition to the win multiplier. A few spins later the fourth torpedo part arrives and the launch adds another +1. From that point every win is multiplied by the combined total, and each further launch or xBomb pushes it higher. If an xNudge Wild then nudges three steps into a win, its own +3 applies on top. Rounds where these elements line up can grow very quickly, while rounds without a launch may pay little.
Bankroll Tips for Das xBoot
- Budget for at least 300 spins; free spins land about once every 211 spins on average.
- The minimum bet is 0.25, so check that your budget suits that starting stake.
- Treat bonus buys as high-risk purchases and decide your limit before you start.
- Use the casino’s deposit and time limit tools.
Who Das xBoot Suits
Das xBoot is best suited to players who already know how Nolimit City’s xMechanics behave and want them all in one game. If you are new to the studio, the number of interacting features can take a while to follow, and a simpler title such as Fire in the Hole xBomb, which uses only xBomb, may be an easier introduction. Players who enjoy bonus rounds with a clear goal will like the torpedo system in both free spins modes, because progress towards each launch is visible on screen and every launch adds to a multiplier that stays for the rest of the round.
Pros and Cons of Das xBoot
| Pros | Cons |
|---|---|
| Three xMechanics working together | Extreme volatility |
| Sticky multipliers in both bonus modes | 22.17% hit frequency |
| Expanded 8-row reel in Silent Hunter | Wolf Pack is rare in natural play |
| 55,200x maximum win | Max win odds around 1 in 64 million |
| Strong cinematic presentation | Bonus buy not offered in all markets |
Demo Play vs Real Money
Nolimit City offers a free demo on its website with the same maths as the real game. At the time of writing, the official demo did not load from an Australian connection. If a demo is available to you, use it to see how the torpedo features work before staking money.
For real-money play, choose a casino that displays the RTP clearly, pays out reliably and provides limit tools. See our casino reviews.
Frequently Asked Questions
Nolimit City lists the RTP of Das xBoot at 96.03%. Lower versions exist, so check the game info at your casino.
The maximum payout is 55,200x the base bet, and the round ends when it is reached. Nolimit City puts the odds at about 1 in 64 million.
It combines three: xNudge Wilds that gain +1 multiplier per nudge, xWays symbols that reveal 2 to 3 matching symbols, and xBomb Wilds that clear non-winning symbols and raise the multiplier.
Three bonus symbols award 8 Silent Hunter Spins, in which reel 3 grows to 8 rows and the Periscope Wild can launch torpedoes for extra multipliers.
Four bonus symbols award 8 Wolf Pack Spins. You collect four torpedo parts to launch a torpedo, and each launch adds 1 to the win multiplier.
Responsible Gaming Note
Das xBoot is entertainment, not a source of income. Only play if you are 18 or older, set limits before you start and stop when you reach them. If gambling becomes a problem, free and confidential support is available 24/7 from Gambling Help Online on 1800 858 858.
Final Verdict
Das xBoot is one of Nolimit City’s most complete feature sets, combining xNudge, xWays and xBomb on a distinctive diamond-shaped grid, with two bonus modes built around sticky multipliers and torpedo launches. The 55,200x cap gives it serious potential, but Extreme volatility means it is best approached with a small stake and a firm budget. Check the RTP at your casino before you play.