188 million spins on fire in the hole 2: the widest RTP version gap we have measured added up to 16 points to the bust rate
exp · 049 · 2026-06-27 · simulation-based
Run it yourself in the live simulator. All figures are simulation-based observations, not predictions. See our methodology.
what we measured
| parameter | value |
|---|---|
| provider / engine | Nolimit City · xWays / xSplit, mining collapse, xBomb multipliers |
| configs simulated | 96.07% (provider default) · 87.05% (published floor of the ladder) |
| published rtp ladder | 96.07% / 94.08% / 92.07% / 87.05%, a verified 9.02pp spread |
| volatility | extreme (10/10) |
| stakes | $0.20 / $0.50 / $1.00 per spin |
| bankrolls | $50 / $100 / $200 |
| sessions | 10,000 per stake/bankroll cell, 90,000 per version |
| spin cap | 2,000 spins per session |
| max win | 65,000x stake |
| bonus buy | yes, 70x (96.1%), 200x (96.34%), 600x (96.33%); Lucky Draw 175x (96.12%) |
model inputs worth flagging: the four-step RTP ladder and the bonus buy menu are sourced, and the bonus trigger frequency (1 in 211 base spins) is published, a stronger input than most. but Nolimit does not publish a base hit frequency for this game, so we used its sibling Fire in the Hole 3's value (~22%) as a documented sibling estimate; the bonus payout distribution and base-versus-feature split are model assumptions calibrated to the published RTP and the 65,000x cap. the cross-version comparison holds all of those constant, so it is robust; absolute bonus-value figures are estimates.
how long bankrolls survived
the stake sets the clock. at the $100 bankroll the default-version median ran 711 spins at $0.50. fire in the hole 2 is an extreme-volatility game where both the base (via xBomb multipliers) and the bonus can detonate, but most sessions never see the detonation, and the bankroll grinds down between rare hits.
bust rates
bust rates within the 2,000-spin cap, 96.07% default version, 95% confidence intervals:
| $50 bankroll | $100 | $200 | |
|---|---|---|---|
| $0.20/spin | 68.2% ±0.9 | 35.4% ±0.9 | 1.1% ±0.2 |
| $0.50/spin | 88.8% ±0.6 | 74.7% ±0.9 | 47.8% ±1.0 |
| $1.00/spin | 94.6% ±0.4 | 87.7% ±0.6 | 75.8% ±0.8 |
plain reading: hold the bankroll at $100 and move the stake from $0.20 to $0.50, and the bust rate doubles from 35.4% to 74.7%. the only safe cell is $0.20 against $200 (1.1%), 1,000 spins of cover on a 1-in-211 bonus trigger.
the bonus wait, and what it pays
at the published trigger rate of 1 in 211, our sessions averaged one bonus about every 211 spins. the payout side (model-based estimates): the average bonus paid 80x stake but the median was just 44x, and 55% of bonuses paid under 50x. the extreme tail, the 65,000x ceiling, drags the average far above the typical round. a $100 bankroll at $0.50 buys roughly enough spins to expect a couple of triggers; the sessions that busted are the ones whose bonuses came late or paid small.
what a finished session looks like
the final-bankroll distribution at $0.50/$100 has almost no middle. seven sessions in ten ended with under $0.50 of the original $100, busted, in effect, with the median finish near $0.47. then it leaps: the 90th percentile kept $318. extreme-volatility Nolimit sessions either die or, rarely, detonate; the steady middle outcome barely exists.
the rtp version lottery
this is the study's reason to exist, and fire in the hole 2 has the widest spread we have measured: a published ladder from 96.07% down to 87.05%, a 9.02-point gap. the casino chooses the rung, and the player never sees it. we ran the full grid at the default and the floor; same model, same inputs, only the RTP changed:
| cell | 96.07% default | 87.05% floor | delta |
|---|---|---|---|
| $0.20/$100 bust | 35.4% ±0.9 | 51.2% ±1.0 | +15.7pp |
| $0.50/$100 bust | 74.7% ±0.9 | 84.7% ±0.7 | +9.9pp |
| $0.50/$200 bust | 47.8% ±1.0 | 62.9% ±0.9 | +15.1pp |
| $1.00/$200 bust | 75.8% ±0.8 | 84.1% ±0.7 | +8.4pp |
the floor version raised the bust rate by 8 to 16 points depending on the cell, by far the largest version effect in our library, because the spread is more than four times wider than a typical 2-point Pragmatic ladder. same game, same explosions, same mine. the only difference is the nine points of RTP the operator chose to run. the version is the one variable a player can actually pick, so play it where the published RTP is highest. our casino hub ranks operators by exactly that.
methodology note
we simulate models calibrated to published math, RTP, hit frequency, volatility profile, bonus behaviour, not the provider's game engine. results are sample-based observations from 187,768,304 simulated spins (180,000 sessions across two RTP versions), with 95% confidence intervals shown. the bonus trigger frequency (1 in 211) is published; the base hit frequency is not published and uses Fire in the Hole 3's value (~22%) as a documented sibling estimate; the bonus payout distribution and base-versus-feature split are modelled. casino-by-casino RTP figures are the published ladder, not statements about any operator's current configuration. model validation: fire-in-the-hole-2 v1, analytic calibration exact at 96.07% and 87.05%, 10M-spin checks within tolerance. slots are negative-expectation games; nothing here predicts outcomes or improves odds. corrections policy: methodology.html.
Where the max win actually comes from
40% of this game's RTP is locked inside the bonus you rarely trigger; the base game on its own returns just 58%.
A normal spin in our simulation never returned more than ~6,981x (€3,490). The 65,000x top win is a feature event, it only came out of the bonus. (base-game ceiling: paytable-sourced)
Play the Fire in the Hole 2 demo, or stress-test it
Looking for the Fire in the Hole 2 demo or free play? A demo shows you a handful of spins. Our free simulator runs Fire in the Hole 2 across thousands of sessions and shows what actually happens to a bankroll over time: the bust rate, how long the money lasts, and the wait for the bonus. It is the demo with the math switched on.
stress-test Fire in the Hole 2 free
FAQ
Is there a Fire in the Hole 2 demo or free play?
Yes. You can play Fire in the Hole 2 in demo mode at most casinos, and you can stress-test it free in our simulator, which runs thousands of sessions and reports the bust rate and session length, the demo with the math switched on.