100 million spins on mystery museum: a 62,000x ceiling, and the floor RTP version added up to 6 points to the bust rate
exp · 090 · 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 | Push Gaming · expanding symbols, Power Gamble, free spins |
| configs simulated | 96.58% (provider default) · 94.01% (published floor) |
| published rtp ladder | 96.58% / 94.01%, a verified 2.57pp spread |
| volatility | high |
| 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 | 62,003x stake (a feature event) |
| feature buys | bonus buy (operator-dependent; non-UK) |
model inputs worth flagging: the two-step RTP ladder and the 62,003x max are sourced. Push does not publish a hit frequency or bonus trigger rate, so both were modelled (about 22% hit, one feature every ~201 spins) as documented assumptions; the bonus payout distribution and the ~350x base-game ceiling are model assumptions calibrated to the published RTP and the 62,003x cap. the cross-version comparison holds all inputs constant, so it is robust.
how long bankrolls survived
the stake sets the clock. at the $100 bankroll the default-version median ran 717 spins at $0.50. the base game keeps small wins coming, but the meaningful payouts wait behind the free-spins feature, and most sessions run dry before one lands.
bust rates
bust rates within the 2,000-spin cap, 96.58% default version, 95% confidence intervals:
| $50 bankroll | $100 | $200 | |
|---|---|---|---|
| $0.20/spin | 67.5% ±0.9 | 34.0% ±0.9 | 0.9% ±0.2 |
| $0.50/spin | 88.4% ±0.6 | 74.5% ±0.9 | 46.9% ±1.0 |
| $1.00/spin | 93.8% ±0.5 | 88.5% ±0.6 | 74.3% ±0.9 |
plain reading: hold the bankroll at $100 and move the stake from $0.20 to $0.50, and the bust rate doubles from 34.0% to 74.5%. the only safe cell is $0.20 against $200 (0.9%).
the bonus wait, and what it pays
on our modelled trigger rate (about 1 in 201 spins, an assumption), the feature carries about 49% of the total return. the payout side (model-based estimates): the average feature paid 95x stake but the median was 52x, and 49% paid under 50x. the 62,003x ceiling is the rare tail; a typical feature pays around half the average.
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 $0.34. then it leaps: the 90th percentile kept $325. the same die-or-detonate shape as the rest of our library.
the rtp version lottery
mystery museum ships in two published versions, 96.58% and 94.01%, and the casino picks which to run. the gap is 2.57 points wide. same model, same inputs, only the RTP changed:
| cell | 96.58% default | 94.01% floor | delta |
|---|---|---|---|
| $0.20/$100 bust | 34.0% ±0.9 | 39.5% ±1.0 | +5.5pp |
| $0.50/$100 bust | 74.5% ±0.9 | 77.7% ±0.8 | +3.2pp |
| $0.50/$200 bust | 46.9% ±1.0 | 52.5% ±1.0 | +5.6pp |
| $1.00/$200 bust | 74.3% ±0.9 | 78.0% ±0.8 | +3.6pp |
the floor version raised the bust rate by 3 to 6 points. 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 100,174,022 simulated spins (180,000 sessions across two RTP versions), with 95% confidence intervals shown. hit frequency and bonus trigger rate are not published and were modelled as documented assumptions; the bonus payout distribution and the ~350x base-game ceiling are reasoned estimates, not sourced. the 62,003x max is a feature event. casino-by-casino RTP figures are the published ladder, not statements about any operator's current configuration. model validation: mystery-museum v1, analytic calibration exact at 96.58% and 94.01%, 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
49% of this game's RTP is locked inside the bonus you rarely trigger; the base game on its own returns just 49%.
A normal spin in our simulation never returned more than ~350x (€175). The 62,003x top win is a feature event, it only came out of the bonus. (base-game ceiling: model estimate)
Play the Mystery Museum demo, or stress-test it
Looking for the Mystery Museum demo or free play? A demo shows you a handful of spins. Our free simulator runs Mystery Museum 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 Mystery Museum free
FAQ
Is there a Mystery Museum demo or free play?
Yes. You can play Mystery Museum 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.