Das xBoot slot explained

Das xBoot slot in brief

Das xBoot comes from Nolimit City, the Malta-registered studio now owned by Evolution, and it shows off almost every trademark the studio is known for. The game uses a diamond-shaped grid of six reels holding 2, 3, 4, 4, 3 and 2 symbols. Wins pay on ways, so matching symbols on adjacent reels from the left count wherever they sit on each reel.

The theme is a wartime submarine hunt, but the substance is the maths. Nolimit labels the volatility extreme, the highest band it uses, and the 55,200x cap is among the larger figures in our library. That combination means the game is built around rare, very large results rather than steady returns.

Reading the Das xBoot slot machine grid

The 576 base ways come straight from multiplying the reel heights: 2 × 3 × 4 × 4 × 3 × 2 = 576. Every time a feature adds symbols to a reel, it multiplies the total again. If an xWays symbol on reel 2 turns into three symbols, for example, that reel effectively holds five positions instead of three, and the full-grid figure becomes 2 × 5 × 4 × 4 × 3 × 2 = 960 ways.

The maximum of 75,712 ways comes when bonus features stack these expansions together. Like any ways count, it describes how wins can form, not how much the game returns. For more on the arithmetic, see what 243 ways means, which uses the same principle on a smaller grid.

xNudge, xWays and xBomb: the Das xBoot base game

xNudge wilds

In the base game, stacked wilds four symbols tall can land on reels 3 and 4, the two tallest reels. If one lands partly off screen, it nudges into full view, and each nudge adds 1 to its multiplier. A wild that nudges two steps carries x3, for instance. When several multiplier wilds take part in one win, their values combine. Our xNudge page covers the mechanic across Nolimit's catalogue, and nudging wilds explains the wider family.

xWays symbols

xWays symbols can land on reels 2 to 5. Each reveals two or three copies of the same randomly chosen paying symbol, and if several land on one spin, they all reveal the same symbol. That both multiplies ways and lines up a single symbol across the grid.

xBomb wilds

An xBomb wild adds 1 to a global win multiplier, then explodes, clearing away non-winning paying symbols. The bomb itself stays as an ordinary wild and new symbols fall into the gaps, much like cascading reels. A chain of xBombs can therefore build the multiplier several times in one paid spin.

All three mechanics are part of the single result drawn by the RNG when you press spin. Nudges and explosions are the game showing you that result step by step.

Das xBoot free spins: Silent Hunter and Wolf Pack

Sonar display scatters land on reels 2 to 5. How many you collect decides which round you get.

Silent Hunter

In Silent Hunter, matching symbols on reels 1 and 2 together with a periscope wild on the tall reel 3 start a torpedo launch at an enemy ship. A hit expands the periscope wild to cover the reel, raises the global multiplier by 1 per torpedo and adds to the wild's own multiplier for each nudge. A miss leaves the wild as a single symbol. Each scatter that lands during the round adds two spins.

Wolf Pack

Wolf Pack is the stronger tier. Torpedo wilds on reels 2 to 5 drop metallic xWays symbols into a tube below the grid, each starting at x2 and rising by 1 with every new torpedo wild, up to x9. Filling all four tube positions launches the torpedo, converting reels into large xWays symbols and wilds and adding 1 to the win multiplier. Scatters again add two spins. Our wild multipliers page explains how stacked multipliers combine.

Das xBoot RTP and what it costs per 100 spins

The default Das xBoot RTP is 96.03%, which means a house edge of 3.97%. Nolimit offers lower settings to operators too, and at least one slot database lists a 94.02% version, so read the figure in your game's rules. Here is the average cost of 100 spins at the default.

Those averages hide a lot. On an extreme-volatility slot, the typical 100-spin session ends well below the average return, while a small number of sessions finish far above it. That is what pays for the 96.03% on paper. Our page on standard deviation puts numbers to that spread.

Das xBoot max win at UK stake limits

The Das xBoot max win is 55,200x the stake, reached only when the bonus features stack perfectly. It is a cap: once reached, the round ends and pays that sum.

A cap this large exists because the multipliers and ways can compound so far. It does not mean big wins are common; it means the rare ones can be very large. See which slot has the biggest max win for how Das xBoot compares.

Extreme volatility: is the Das xBoot slot worth it?

Extreme volatility changes how a budget behaves. Many sessions end with nothing but small line wins, and the bonus may not appear at all. That is not a fault; it is the design. A sensible approach is to treat your budget as the full cost of the session and to stop when it is gone, not to top up after a dry run.

If that profile sounds tiring, a medium volatility slot will usually last longer on the same budget. If you like it, Nolimit's other high-volatility slot machines follow the same pattern.

Das xBoot myths that cost players money

1. "The bonus is overdue." No spin knows about earlier spins. A long gap changes nothing.
2. "A torpedo miss means the next one will hit." Each launch result is part of the spin's random outcome.
3. "Bigger stakes make the bonus more likely." Stake only scales the prize. The chance per spin is the same.
4. "The high max win means high RTP." The cap and the return are separate. A 55,200x cap sits on a 96.03% game.

These beliefs encourage chasing, which is the costliest habit on an extreme game. Our guide to slot machine myths and our answer on whether slot machines remember past spins explain why.

What is different about Das xBoot in the UK

• No bonus buy. Elsewhere Nolimit sells entry to both rounds; that option is not part of the version supplied to Great Britain. See bonus buy in the UK.
• Stake limits. £5 a spin for 25 and over since 9 April 2025 and £2 for 18–24s since 21 May 2025. The government's announcement (opens in a new tab) sets out the reasoning.
• Design rules. Since 31 October 2021: no autoplay, a minimum 2.5 seconds per spin, no turbo or slam-stop, and no fanfare for returns at or below the stake. The Commission summarised these in its announcement of the online game design rules (opens in a new tab).
• Game information. The rules and RTP must be available in the game, under the Commission's standard on game descriptions and the likelihood of winning (opens in a new tab).

Our spin speed rule page explains why the game cycle matters most on games like this, where a slower pace naturally cuts the hourly cost.

Das xBoot demo and how to check the RTP

1. Sign in to a UK-licensed casino and pass age verification; demos are age-gated since May 2019.
2. Open Das xBoot and select the game rules from the menu.
3. Find the theoretical return line and check it against the 96.03% default.
4. Read the Silent Hunter and Wolf Pack pages to see the spin counts and multiplier rules in that version.
5. Use the demo, if offered, to watch how xNudge and xBomb play out before deciding whether to stake real money.

Free demo play after age verification uses the same maths as the paid game, so it shows the volatility honestly. See our demo slots guide for more.

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Where to play Das xBoot in the UK

Nolimit City games are widely supplied to UK-licensed casinos, but we cannot confirm that any particular partner carries this one, so search the casino's lobby; game availability changes. The offers below apply to slots in general. Coral gives 100 free spins at 10p after you deposit and bet £10 on slots, valid for 7 days. Ladbrokes gives 50 free spins a day for up to ten days, 10p each, after you spend £10 on slots. PlayOJO's 80 spins are tied to Big Bass Bonanza. None of the three applies wagering to spin winnings.

All offers are 18+ for new customers, and terms apply. On an extreme game, set a deposit limit and a session time before you begin. Free, confidential help is available from the National Gambling Helpline on 0808 8020 133 and from NHS gambling support (opens in a new tab). Compare partners on our casinos page.

18+. Gambling should be entertainment that costs money, not a way to make it. Decide a budget before you play: plan a slot budget. Free, confidential help: National Gambling Helpline 0808 8020 133.