Nolimit City returns to the depths with Das xBoot Zwei, a high-intensity sequel that builds on the cult status of the original submarine slot. Officially released on December 16th, this new title leans heavily into tension, unpredictability, and mechanical complexity. It is very much designed for players who enjoy volatile gameplay, layered features, and the possibility of huge outcomes after long dry spells.
Rather than reinventing the formula, Nolimit City has refined and expanded it, delivering a darker, more demanding slot that feels familiar while still pushing boundaries.
Theme and Visual Design
The setting once again places players aboard a WWII-era submarine navigating hostile waters. The visuals are gritty and claustrophobic, with muted colours, mechanical animations, and a soundscape filled with sonar pings and distant explosions. Everything about the presentation reinforces pressure and anticipation rather than spectacle.
The reel layout uses a 6-reel structure with a 2-3-4-4-3-2 configuration, creating 576 ways to win before any feature expansions come into play. Visual effects intensify during feature triggers, making winning moments feel earned rather than random.
RTP, Volatility and Betting Range
Das xBoot Zwei is firmly positioned as an extreme volatility slot. Wins are infrequent in the base game, but when features align, payouts can escalate rapidly. The maximum win reaches 59,999x the stake, placing it among the most aggressive releases in Nolimit City’s portfolio.
RTP varies depending on the configuration selected, ranging from the low 92 percent area up to just under 96 percent. Betting starts from low stakes and scales up to high-limit territory, allowing a wide range of players to engage with the game, provided they are comfortable with volatility.
Core Gameplay Mechanics
The base game is far from simple and introduces several mechanics that interact dynamically:
- xNudge Wilds can land partially on reels and nudge into full position, increasing their multiplier each time they move. These wilds are central to many of the game’s strongest base-game wins.
- xWays symbols appear on specific reels and can transform into multiple symbol positions, effectively expanding the grid and increasing win potential.
- xBombs act as explosive wilds, removing non-winning symbols from the grid, triggering cascades and increasing the global multiplier as the board clears.
Together, these mechanics make even standard spins feel tense, as a single symbol can completely change the outcome.
Periscope and Expansion Features
One of the standout mechanics is Periscope Up, which can expand the central reel and introduce a Periscope Wild. This wild can fire torpedoes across the reels, replacing symbols and adding multipliers in the process.
This feature adds an element of anticipation to each spin, especially when the reel begins to expand, signalling that something significant may be about to happen.
Free Spins and Bonus Modes
Landing three or more scatter symbols unlocks one of several free spins modes:
- Silent Hunter Spins focus on Periscope mechanics and persistent expansion across the bonus round.
- Wolf Pack Spins introduce torpedo-building mechanics early, allowing explosive sequences to develop faster.
- Battle of the Atlantic Spins combines both modes into a high-pressure bonus round where all mechanics are active simultaneously.
Each bonus feels distinct and carries genuine risk-reward tension, particularly when multipliers begin stacking.
For players who prefer direct access, Feature Buy options are available, allowing entry into specific bonus modes without waiting for scatters.
Availability and Where to Play
Das xBoot Zwei is rolling out across a wide range of platforms, including mainstream operators and alternative platforms such as Offshore Casinos, where game availability and limits can differ.
It can also be found at Casinos Not on GamStop, making it accessible to players looking beyond self-exclusion networks while still wanting access to high-volatility slots from established developers.
Final Thoughts
Das xBoot Zwei is unapologetically demanding. It is not designed for casual spinning or frequent small wins, but for players who enjoy tension, complex mechanics, and the possibility of enormous payouts after extended build-up.
With its oppressive atmosphere, intricate feature set, and massive win ceiling, this sequel firmly cements itself as one of Nolimit City’s most intense and rewarding releases to date.