Nolimit City · 2021 · tested 2026-10-08
Das xBoot
Silent Hunter's 50 demo tickets returned 162.18% of their combined cost in Das xBoot, while natural free spins were tracked separately across 10,000 ordinary rounds.
Test card
10,000 spins · EUR 1.00 bet · every request logged| Spins | 10,000 |
| Bet | EUR 1.00 |
| RTP declared | 96.03% |
| RTP measured | 81.32% (approximate 95% CI 63.8–98.8) |
| Hit frequency | 21% · every 4.68 |
| Dead streak max / avg | 37 / 4.68 |
| Median hit | 0.48x |
| Max win (base game) | 224.6x · round 707 |
| Free spins, natural | 43 · 4.3 bHz · every 232.6 spins · mean FS-only payout 57.4x stake |
| Balance start → end | 10,000 → 8,132 |
each run keeps its own spin log, CSV and raw server journal with checksums; the figures on this card combine all runs
Play Das xBoot demo
NOLIMIT CITY · official demo · same math as real play
United States
Das xBoot available at Cafe Casino
Same reels, real payouts
Cafe Casino runs the same Das xBoot with the same math and adds a welcome bonus for players from the United States:
300% up to $2,000 + 150 FS 18+ · T&Cs apply · the demo stays free
Bonus buy lab
50 buys × 75x · EUR 75 eachmean 1.62x · median 0.534× price (EUR 40.04) · 34 of 50 below price · best 37.04x · worst 0.00x
| Spins per bonus (avg / min–max) | 9.3 / 8–12 |
| Retriggered | 42% |
| Bonuses that paid nothing | 0% |
Every naturally triggered feature started with eight spins; 17 of 43 gained 42 extra spins. Among the 50 Silent Hunter purchases, 21 extended by 64 spins in total. Each extension comes from a new Scatter awarding two spins; an xBomb refill does not itself consume or add a free spin.
- Spent
- EUR 3,75050 × EUR 75
- Returned
- EUR 6,081.92162.18% · approximate 95% CI 18–306%
- Net
- +EUR 2,331.92+31.1 buys
- Break-even or better
- 16 / 5032%
- Paid 2× price or more
- 6 / 5012%
- Price in base spins
- 75natural trigger every ~233 spins
One ticket equals 75 ordinary stakes. Natural bonuses occurred once per 233 ordinary rounds in this sample. Stakes multiplied by this interval measure gross wagering, not the net cost of obtaining a bonus. Purchase returns above include the complete purchased round and are divided by the ticket price.
Risk profile
how much bankroll this run needed| 50 bets | bust at spin 248 |
| 100 bets | bust at spin 585 |
| 200 bets | bust at spin 1853 |
One run, one bet size. A different session can bust earlier or never; treat this as a measured example, not a rule.
How it plays
21 rules screens from the game
The submarine-shaped field has six reels with two, three, four, four, three and two positions, giving 576 starting ways. Matching symbols pay across at least three neighbouring reels beginning at the left edge; six Captains pay 20 times the stake for each way. On reels two and five, an xWays medal reveals two or three copies of one ordinary symbol. Several medals on the same spin reveal the same symbol, increasing the number of combinations.
A four-position xNudge Wild moves until its whole body fits, adding one to its multiplier for every nudge. It occupies reel three or four in the base game, and only reel four during Silent Hunter; all applicable multipliers are added together. An xBomb substitutes for ordinary symbols, then removes non-winning symbols except Scatters and Wilds, refills the gaps and adds +1 to the win multiplier before payment. The xBomb increase stays through that round and carries into any free spins triggered by it.
Three radar Scatters award eight Silent Hunter Spins, while four award eight Wolf Pack Spins. Silent Hunter stretches reel three to eight positions, where a Periscope can appear. A matching symbol on the first two reels allows that Periscope to target a ship: a hit fills reel three with a nudging Wild and adds one to the feature's persistent multiplier. A miss leaves a single Wild on the Periscope position.
Wolf Pack has one torpedo tube spanning reels two through five: its outer sections collect ordinary xWays, and its inner sections collect Wild xWays. A first part contributes two and later parts add one; completing all four parts launches the torpedo and increases the persistent win multiplier by one. The launch inserts a split symbol into each of those four reels, using ordinary symbols on the outside and Wilds in the middle, with a maximum split size of nine. In either bonus, every new Scatter grants two additional spins and each xBomb increases the persistent multiplier.
The ticket menu charges 75 times the base stake for Silent Hunter or 350 times for Wolf Pack; an activated ticket keeps charging its full cost until it is disabled. In this EUR build, stakes run from 0.25 to 100 and stated RTP is 96.03%; the two purchase profiles instead list 96.57% and 96.56%, respectively. A round ends upon reaching the stated 55,200x maximum award, regardless of remaining free spins.
Wild symbol
Scatter symbol
Free spins
Multiplier
Expanding symbol
Retrigger
Bonus buy
Bet range EUR 0.25 – 100 per spin · payouts read from the game's paytable at bet EUR 1.00
Gallery
16 frames from the demo session
Verdict
Winning symbols can survive the explosionThe 481 ordinary rounds containing an xBomb before free spins supplied EUR 3,546.16 outside the bonus, or 62.61% of all money paid on base-game screens. The mine does not clear every symbol: existing winning positions survive alongside Scatters and Wilds, allowing the replacement field to build on them. Its preliminary highlighted combinations are not a separate credited win.
An ordinary spin at round 707 illustrates the effect. It contained 2 xBomb activations and finished at EUR 224.64, with a 6x multiplier on its final paid field. Local Wild values add to the persistent counter; multiplying those displayed values together would overstate the payout.
Natural entry occurred 43 times in the 10,000-round sequence, which returned 81.32% of its EUR 10,000 stake total. Free spins alone paid a median EUR 27.84 per feature; 221 of 386 individual free spins paid nothing. New Scatters extended 17 features by 42 spins altogether.
Purchasing Silent Hunter cost EUR 3,750 for fifty EUR 75 tickets, with EUR 6,081.92 returned. Only 16 tickets recovered their price; the median payout was EUR 40.04 and the best paid EUR 2,778.24. That one ticket supplied 45.68% of all purchase payouts. These results cover the cheaper ticket only, so they do not measure the EUR 350 Wolf Pack purchase's return.
- Winning positions remain available through xBomb refills; those rounds supplied 62.61% of base-screen payouts
- Scatter awards extended 17 natural bonuses by 42 spins without an added stake
- Both ticket prices are visible together before activation: 75x for Silent Hunter and 350x for Wolf Pack
- 34 of 50 Silent Hunter purchases failed to recover the EUR 75 price
- Zero payouts occurred on 221 of the 386 naturally triggered free spins
- An enabled ticket continues charging the full feature price on subsequent spins until switched off
Test record
10,000 rounds · 50 buys · open data · closed rigOne test run so far: a single session of the base game plus a separate series of bonus purchases on the official demo server, every request and response logged. When the game is tested again, the new run is added here and the figures on this page combine all runs into one sample.
- 10,000rounds logged
- 21%rounds that paid
- 549xbiggest round
- 1 / 233natural bonus rate
- 1.62xmean of 50 buys
- 37longest dry streak
01run Run 012026-10-08 measured return81.32%-14.7 pts vs declared
- 95% band
- 63.8–98.8%
- rounds that paid
- 21%
- biggest round
- 549x · round 1,990
- longest dry streak
- 37
- natural bonuses
- 43 · one per 233 rounds
- bonus buys
- mean 1.62x · median 0.534x · 68% below price
- balance start → end
- 10,000 → 8,132
- deepest drawdown
- 2,274x
10,000 ordinary rounds, including naturally triggered features, at a fixed EUR 1 bet; 50 bonus buys at EUR 75 each (75x); mode: Ordinary EUR1 spins; separate EUR75 Silent Hunter Spins purchases at the same EUR1 base stake. Wolf Pack tickets are not purchased. Browser media sessions are excluded from the statistical sample; recorded on the official Nolimit City demo server (jurisdiction DEFAULT, RTP profile 96.03%); every request and response logged; test run 2026-10-08. The purchase sample uses only the 75x Silent Hunter ticket. Wolf Pack purchases and all browser media sessions are excluded from these statistics. Free-spin extensions are counted from new Scatter awards, and xBomb continuations stay within their original spin.
The test rig plays the official demo build over the network and records every server round: bet, win, cascade steps, free spins, collect. Screenshots and video were captured in a separate browser session and are not part of the statistical samples. The text was read against the log by an editor before publication. How we test →
FAQ
6 questions · answered from the logWhich symbols survive an xBomb explosion?
It keeps symbols participating in a winning combination, plus Scatters and Wilds. Other positions are cleared and refilled, while the win multiplier receives +1. A highlighted combination before that refill is not credited separately: the payable field is evaluated after the explosion sequence finishes.
Does a Silent Hunter ticket guarantee its EUR 75 cost back?
No. The ticket buys entry to Silent Hunter, not a guaranteed return of its price. In the 50-purchase sample, 34 outcomes were below EUR 75, and the median was EUR 40.04. The separate video shows a EUR 75 ticket ending at EUR 7.60 after ten free spins.
Are two xNudge multipliers multiplied together?
Nudge values combine by addition. For example, 2x and 3x contribute 5x before any other applicable multiplier is added. The full amount applies to the winning combinations; multiplying those two Wild values would incorrectly produce 6x. A fully visible stack without a nudge does not supply an extra nudge increase.
How does Wolf Pack differ from Silent Hunter?
Silent Hunter uses an eight-position third reel and Periscope attacks. Wolf Pack instead collects four torpedo sections below reels 2 to 5; completing the set inserts split ordinary symbols and Wilds into those reels and advances the persistent multiplier. Both features start with eight spins, but their purchase prices are 75x and 350x respectively.
Which of the three RTP figures belongs to ordinary play?
The current demo assigns 96.03% theoretical RTP to ordinary spins, 96.57% to Silent Hunter purchases and 96.56% to Wolf Pack purchases. The measured ordinary sample returned 81.32%; the separate fifty-ticket Silent Hunter sample returned 162.18%. A finite sample can differ substantially from its theoretical setting.
Does reaching 55,200x leave the remaining free spins playable?
The Rules end the round when its maximum award of 55,200 times the base stake is reached, even with spins remaining. No such cap was reached in this test: the highest payout among ordinary rounds was EUR 548.80 at a EUR 1 stake. The cap is an upper limit, not a typical bonus result.
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Field notes
0 notes