Das xBoot 2
The submarine returns with a cleaner grid, four bonus tiers and a ceiling that barely anyone surfaces from.

This sequel sits in the Nolimit City catalogue alongside San Quentin, Tombstone and the first xBoot. All of them run on variations of the same xWays and xNudge engine. The sequel's cleaner grid changes how the expansion plays out, and the four-tier buy ladder gives the session more shape than the two-option original. See the how we test page for my full scoring method, and here is what my sessions showed.

Das xBoot 2 at a glance

The shift from the first game's irregular 2-3-4-4-3-2 layout to a regular 6x4 grid is the first mechanical difference worth noting. The predecessor had different reel heights, which meant the ways count varied more erratically between spins. The sequel starts every spin from the same 24-position base. xWays expansion still modifies the ways count each time one lands, but the baseline is uniform and easier to read.

How xWays works on the new grid

The mechanic carries over exactly from the original. An xWays symbol reveals a random number of identical base symbols when it lands, expanding the reel it sits on. It does not substitute like a wild. It reveals, and those revealed symbols join the ways-to-win count for that spin. On a reel with four positions, an xWays might reveal two symbols or fill all four.

Two xWays landing together compound the effect. I tracked the highest single-spin ways count during my sessions at well above the default. When the central reels both expand fully, the grid becomes a dense wall of matching symbols. The win mechanics cascade across every combination. That is when the machine earns its ceiling of 59,999x.

xNudge wilds work the same way. They nudge to fill a reel entirely, and each nudge step adds 1x to the wild's multiplier. A two-step nudge carries 3x. A three-step nudge carries 4x. The multiplier only pays on wins involving that wild. On spins where the wild lands with no matching clusters nearby, the multiplier has nothing to apply. The result comes to nothing.

Dead spins and what to do with them

They happen constantly. The hit rate on this class of NLC slot runs near 25 to 30 percent, which means most spins close at zero. xWays lands, the reel expands, and no winning combination forms across the six reels. The display looks dramatic and pays nothing. Knowing that in advance is the difference between a planned session and an unpleasant one. The how we test page documents how I factor dead-spin rate into every score.

My own sessions at US$ 0.20 stake ran for stretches of 40 to 60 consecutive spins without anything worth remembering. That is not unusual for this engine. It is the toll the design charges for the occasional spin that returns 500x or more.

Four bonus buys compared

The Silent Hunter buy at 80x is the entry point. At minimum stake the buy costs US$ 8. Free spins run with more xWays symbols than the base game, raising the average ways count and making combinations more likely per spin. It is the option I use for shorter sessions or when I want to see the mechanics without committing heavily.

Wolf Pack at 250x adds a persistent convoy column: one reel is loaded with premium symbols and stays that way across the free spins. At US$ 0.10 per spin that costs US$ 25. The column means every spin starts with one reel already contributing premium symbols to any combination that forms. When an xNudge wild lands on an adjacent reel during high xWays expansion, the two mechanics together drive the upper end of the win range.

Lucky Draw at 290x is the variable. The draw can award any of the other bonus modes. It costs slightly more than Wolf Pack but can deliver the premium-tier value.

My own Lucky Draw presses skewed toward Silent Hunter and Wolf Pack outcomes more often than the premium tier. The sample is too thin for hard conclusions. Treat it as a lottery ticket priced just above Wolf Pack.

The 750x tier is the top option. At minimum stake that works out to US$ 75. Multiple convoy columns are active simultaneously and the free spins start with the grid already heavily loaded. This is where the theoretical ceiling becomes reachable. The casino list covers operators confirmed to run the standard RTP rather than a reduced variant.

Is the 750x buy worth pressing?

It depends entirely on balance depth. My sessions showed average returns around 250x per purchase across about 15 buys at the lowest stake. Six of those 15 returned under 100x. Four came back between 100x and 400x. Three cleared 400x.

My highest session returned 1,840x from a Silent Hunter press that ran hot. At the minimum stake of US$ 0.10 that is US$ 184 back from a US$ 7.50 buy.

My rule on the top-tier buy: never press it without 3,000x of stake behind me. Cap at two consecutive buys before stepping back and assessing the session. The USDT guide covers deposit sizing before any high-variance session.

Is the 95.94% RTP a problem?

It is worth being honest here. Das xBoot (the original) shipped at 96.03%. The sequel comes in at 95.94%. That drop is 0.09 percentage points, which sounds trivial. Over US$ 10,000 wagered, the difference is about US$ 9 more lost. That is not dramatic on its own. What matters more is how it compares to the broader Nolimit City catalogue: most of their headline titles run at or above 96.00%. The sequel sits below that line.

I do not think 95.94% kills the game. But if you are choosing between the two xBoot titles for a long session, the first game has a marginal mathematical edge. The sequel has the better buy ladder and the higher ceiling. Which you prefer depends on your session style. I cover both on this site, with the original review available for a direct comparison.

Always open the game's info panel at your casino and confirm the RTP before you start. Some operators run reduced-payout versions below 95.94%. If the panel shows anything under that number, switch platforms. My checks at BC.Game and winz.io confirmed the standard setting.

My session experience

I ran the base game at US$ 0.20 stake for roughly 350 spins before moving to bonus buys. The pattern matches what I know from the original: slow attrition punctuated by occasional bursts. I recorded a 3x xNudge wild on reel four during a strong xWays expansion on reel three and reel five simultaneously. That combination paid 67x. Genuinely wild for a single unassisted spin, and the best base-game result across the whole session.

The organic bonus trigger appeared roughly every 90 spins. At US$ 0.20 that is US$ 18 per trigger on average. Mine returned 8x on the worst run and 280x on the best. The median sat around 60x, below the trigger cost.

Base-game-only play is a slow disaster for most sessions. The math only turns favourable when the outlier bonuses arrive and clear the accumulated deficit.

The 80x bonus round changed the session character entirely. I could concentrate on the bonus mechanics rather than grinding for organic triggers. At minimum stake that is US$ 8 per press. I bought in around 20 times and tracked the outcomes.

Seven came back under 50x. Eight returned between 50x and 200x. Five cleared 200x. My best press paid 410x, which is US$ 41 from an US$ 8 buy, a good day by any measure of this game's variance.

Playing from Nigeria, Kenya and Ghana

The game is live at winz.io and BC.Game, both accessible from West Africa and East Africa via crypto deposits. For Nigerian players the path runs through OPay or PalmPay, a USDT purchase peer-to-peer, and a send on the TRON network for negligible fees. The Nigeria crypto buying guide covers each step.

Kenyan players: M-Pesa to USDT is the most reliable route. The Kenya guide explains the P2P exchange step. First time sending USDT? The TRON TRC-20 guide explains why the network choice matters: USDT sent on the wrong network does not arrive quickly and sometimes not at all.

At BC.Game the no-deposit code SLREPORT gives 3 USDT on registration. At US$ 0.10 per spin that is 30 rounds, enough to see the xWays mechanics in action without committing real funds. Check the game info panel first to confirm the standard RTP is in use. The Nigeria casino list, Kenya casino list and Ghana casino list have operators confirmed to run the standard setting.

On stake sizing for this game: the 750x buy costs US$ 75 at US$ 0.10 per spin. Building to that level from a peer-to-peer USDT purchase takes some planning. The USDT vs USDC guide covers the deposit side before the session begins.

How does it compare to the first xBoot?

In some ways, yes. The regular 6x4 grid makes session planning cleaner than the predecessor's uneven column heights. Four bonus tiers give more flexibility: you can enter at 80x for a lighter session or go to 750x when the balance supports it. The ceiling at 59,999x is marginally higher than the original's 55,200x.

In one important way, no. The RTP at 95.94% is lower than the original's 96.03%. For long sessions that gap adds up. The original also has the advantage of an established community around it, which means more data points on realistic win distributions. The full original review is at /en/slots/das-x-boot if you want both side by side.

I set and hold my own limits from the first spin, which I explain in more detail on the responsible gambling page. This game rewards discipline more than most.

My verdict: 8.5 out of 10

Why 8.5 and not higher? The 95.94% RTP is the main drag. It sits below the Nolimit City norm, and I notice it over long sessions. Base-game play is genuinely grim between bonuses. Dead spin after dead spin, xWays expanding to nothing. The toll of very high volatility without the character of the predecessor's uneven columns to break up the dead stretches.

Why not lower? Because the four-tier buy ladder is the best structure Nolimit City has put on a submarine slot. The 750x tier is a proper high-conviction option for well-capitalised sessions. The 59,999x ceiling is real in the math.

Wolf Pack and Lucky Draw sit at pricing that fits most session budgets. The xWays engine on a regular 6x4 grid plays more consistently than on the first game's uneven columns. Whether that reads as an improvement depends on what drew you to the original.

Practical advice: stake at a level where Silent Hunter at 80x costs no more than 5% of your session budget. Never open the top buy without 3,000x behind you. Check the RTP on the info panel before your first spin. The slot is worth the session once you accept that the base game is mostly patience and the bonus buys are where the real outcomes live.