Das xBoot RTP, Free Demo and Max Win

Das xBoot RTP and key numbers

Facts checked on 6 November 2026 against the Nolimit City game page, the provider's game sheet and independent reviews. Casinos can run a lower RTP setting, so open the game info screen before you play and check the figure there.

How Das xBoot works

Das xBoot is a September 2021 release from Nolimit City, set aboard a German submarine in the Second World War. The crew is hunting a lost cargo of gold while depth charges go off around them. The tone is grim, the soundtrack is tense and the art is dark, which is typical for the studio.

The reels have an unusual shape. There are six of them, with 2, 3, 4, 4, 3 and 2 rows from left to right, which gives 576 ways in the base game. Wins pay for matching symbols on adjacent reels from the left, and winning symbols are cleared so new ones fall in.

Three Nolimit mechanics run in the base game. The xNudge Wild is four rows tall and always nudges until it is fully visible, adding 1 to its multiplier for each step. xWays symbols reveal two or three copies of the same symbol, adding ways, and if several land they all show the same symbol. The xBomb Wild substitutes for paying symbols, then explodes and blows away every non-winning symbol on its reel so new ones can drop in. Each explosion raises the win multiplier by 1 for the next collapse.

Put together, those three can turn one base spin into a long chain. With xWays at full stretch, the ways count can rise to 75,712. Most spins don't come close, and the hit frequency of 22.17% means roughly four out of five spins pay nothing.

Das xBoot free spins and bonus features

Three bonus symbols start 8 Silent Hunter Spins. Reel 3 grows to eight rows tall, like a periscope. When you land a win together with the Periscope Wild on that reel, a torpedo launch sequence plays. Hit the target and the Periscope Wild fills reel 3 to the top, then nudges down, giving a win multiplier for each nudge. It also adds to a multiplier that lasts for the rest of the round. xBombs in free spins add sticky multipliers too, so a good round keeps building.

Four bonus symbols start 8 Wolf Pack Spins. A torpedo bay sits under the reels. Torpedo wilds that land drop xWays symbols into the bay, and when all four torpedo parts are filled, the torpedo launches and reveals the xWays symbols on the reels. Each launch raises the win multiplier by 1 for the rest of the round, and xBombs add sticky multipliers here as well. This is the round built for the big numbers.

If a win reaches 55,200x the stake, the Das Gold Des Roter Teufel cap kicks in and the round ends. Where feature buys are legal, the Nolimit Bonus menu lets you buy straight into either round. Prices differ between sources, so check the menu in your casino before you buy.

Das xBoot RTP versions: what to check

The provider lists two settings: 96.03% and 94.04%. A couple of reviews quote 96.05%, but the Nolimit City page and game sheet both say 96.03%. Open the game info from the menu and check which one your casino runs.

On a game this volatile, two points of RTP won't decide one session, but they matter over months of play. Our RTP and volatility guide covers this in more detail.

Max win and volatility in practice

Nolimit City rates Das xBoot Extreme, 10 out of 10, and simulates the max win at about 1 in 64 million spins. Free spins arrive about every 211 spins on average, and many rounds pay a small multiple of the stake. The base game can give a decent chain now and then, but it won't hold a balance up for long.

For bonus wagering this is a tough choice. A balance can disappear well before the playthrough is done. Check the numbers in our wagering calculator and keep the stake low if you go ahead.

Playing Das xBoot with free spins or a bonus

Most casinos ban feature buys during bonus wagering and set a max bet, often around 5 in your currency. Read both rules before you play Das xBoot with bonus funds.

Current offers are on our free spins page, and our guide on how wagering requirements work explains playthrough. For a casino with a large slot lobby, see our Mostbet review and check the games listed there.

Similar slots

Fire in the Hole and Misery Mining use the xBomb mechanic on expanding grids. Mental is another dark Nolimit City game with extreme volatility, and San Quentin xWays mixes xWays with a very high cap. The sequel Das xBoot 2wei came out in December 2025.

Our verdict on Das xBoot

Das xBoot packs a lot into one game. Nudging wilds, bombs and xWays can line up in the base game, and both free spins rounds have a clear plan for building multipliers. The theme won't suit everyone, and the extreme volatility makes it a game for players who accept long losing runs. If that is you, play the 96.03% version at a stake you can sustain for a few hundred spins.