The maximum payout in the Nolimit City game Das xBoot 2 Zwei! is 59,999 times the base bet. When the total win exceeds this amount, the game round ends and the winnings are paid out at 59,999 times the base bet.

The xNudge® Wild symbol is a 4-row Wild symbol that continually shifts until it becomes fully visible. Each shift increases the Wild multiplier by 1. The xNudge® Wild symbol can only appear on reels 3 and 4, except in the Periscope Up! game, where it can only appear on reel 4. All multipliers are added together, and wins are calculated after multiplying by the total multiplier.

The xWays® symbol can only appear on reels 2 and 5. It reveals a random regular symbol. The xWays® symbol can range from 2 to 3 symbols. If more than one xWays® symbol appears on the reels, all xWays® symbols will reveal the same symbol.

The xBomb® Wild symbol substitutes for all symbols except bonus symbols. The xBomb® Wild explodes all symbols not included in a winning combination, excluding bonus and other wild symbols. After the xBomb® explodes, the remaining symbols fall to the reels, and new symbols are destroyed and refill the reels. The xBomb® increases the win multiplier by one before it explodes. The xBomb® multiplier during the feature will be carried over to Torpedo Builder, Silent Hunter Spins, Wolf Pack Spins, and Battle of the Atlantic Spins.

In the main game and Silent Hunter mode, landing a full boat in the area with the 2 symbol in the Binoculars field above reels 5 and 6 activates the Torpedo Builder. A torpedo tube appears below reels 2–5, and only torpedo parts can appear on these reels. Reels 1 and 6 are hidden. You have 3 spins to collect 4 torpedo parts. On reels 2 and 5, torpedo parts add an xWays® +1, +2, or +3 symbol to the torpedo area, which is activated after the torpedo is launched.
On reels 3 and 4, torpedo parts add a Wild symbol of +1, +2, or +3 to the torpedo area, which is activated after the torpedo is launched. If all torpedo pieces are filled, the torpedo launch sequence is triggered, revealing xWays® symbols behind the torpedo, corresponding to the size of the pieces collected on each reel.
On reels 2 and 5, these symbols transform into regular symbols and split proportionally to the number of ways earned from the torpedo pieces.
On reels 3 and 4, these symbols transform into wild symbols and split proportionally to the number of ways earned from the torpedo pieces.

In the base game and Silent Hunter mode, landing a golden boat in the binoculars activates the Golden Torpedo Builder, where torpedo parts will only have values of +8 or +88.
Reel 3 expands to 8 positions, and a new “Periscope Up!” wild symbol can appear. Landing connecting symbols on reels 1 and 2 with the “Periscope Up!” wild symbol on reel 3 triggers a torpedo launch sequence. The torpedo is launched through the periscope, and the target is detected. If the torpedo hits its target, the “Periscope Up!” wild symbol expands to the top position on the reel and descends, adding a win multiplier for each hit. If the torpedo misses its target, the “Periscope Up!” wild symbol is treated as one wild symbol. In the main game and the “Wolf Pack” spin, the “Periscope Up!” feature can be triggered randomly. In the “Silent Hunter” and “Battle of the Atlantic” spins, it remains active at all times. The “Periscope Up!” wild symbol does not move over the symbols that open when the torpedo is launched.

The Bonus symbol can appear on reels 1 through 6.

The Periscope Up! feature is active during all Silent Hunter spins. Additionally, nudging the Periscope Wild symbol awards a permanent multiplier, starting at 1x after the first nudge and increasing by +1 with each nudge. This multiplier only applies to the spin in which the Periscope Wild symbol lands and hits the target. Each time the xBomb® symbol appears on the reels, the xBomb® multiplier increases by +1 for the remainder of the Silent Hunter spins. All multipliers are added together before calculating wins. Additional bonus symbols award +2 spins in the bonus mode.

The Periscope Up feature in Silent Hunter and the Torpedo Launcher feature in Wolf Pack are active simultaneously, combining to unleash a true carnage! Every time the xBomb® symbol appears on the reels, an xBomb® multiplier is awarded, increasing the multiplier by +1 for the remainder of the Battle of the Atlantic free spins. All multipliers are added together before calculating wins. Additional bonus symbols award +2 free spins in the bonus mode.

A torpedo tube appears below reels 2–5, and torpedo parts can now appear on these reels. At the start of the game, the torpedo tube is preset with xWays® and xWays® Wild symbols equal to 2. Torpedo parts detach from the reels, leaving a Wild symbol in place. On reels 2 and 5, torpedo parts add an xWays® +1, +2, or +3 symbol to the torpedo area, which is activated after the torpedo is launched. On reels 3 and 4, torpedo parts add an xWays® +1, +2, or +3 symbol to the torpedo area, which is activated after the torpedo is launched.

Each time a full boat lands in the Binoculars, the Torpedo is launched in its current state. On reels 2 and 5, symbols transform into regular symbols and split proportionally to the number of ways awarded from Torpedo Parts. On reels 3 and 4, symbols transform into Wild symbols and split proportionally to the number of ways awarded from Torpedo Parts. After the Torpedo is launched, an identical Torpedo is loaded, which can be further upgraded in subsequent spins. Each time the xBomb® symbol appears on the reels, the xBomb® multiplier is awarded, increasing the multiplier by +1 for the remainder of the Wolf Pack spins. All multipliers are summed up before calculating wins. Additional bonus symbols award +2 spins in the bonus mode.
For a bet multiplied by 1.5 times the base bet, the player is guaranteed to receive a bonus symbol.

For a bet multiplied by 8x the base bet, the player is guaranteed to activate the Periscope Up! feature.

For a bet 20 times the base bet, the player is guaranteed to activate the Torpedo Builder by placing a full-fledged regular boat in the Binoculars.

For a bet of 4,500 times the base bet, the player is guaranteed to activate the “Golden Torpedo Builder” feature by placing a fully equipped golden boat in the Binoculars.

Players may have the opportunity to purchase an extra spin in Das xBoot 2 Zwei! after completing the Silent Hunter, Wolf Pack, or Battle of the Atlantic spins. All existing multipliers (for all bonus modes) and Torpedo Tube progress (for Wolf Pack and Battle of the Atlantic spins) are retained for the extra spin, and its value is determined by their current state. If the value of the extra spin is less than or equal to the total win, the extra spin is awarded.
