183 million spins on jammin' jars: the streamer favourite busted 78% of $0.50/$100 sessions
exp · 051 · 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 · 8×8 cluster pays, tumbling, jar wilds with progressive multipliers |
| configs simulated | 96.83% (provider default) · 94.25% (lower published version) |
| published rtp ladder | 96.83% / 94.25%, a verified ~2.6pp spread (a bonus-buy version runs 96.49%) |
| volatility | high |
| hit frequency | 26.39% (~1 in 3.8 spins) |
| 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 | 20,000x stake (a free-spins event) |
model inputs worth flagging: the RTP ladder, hit frequency (26.39%, single source) and the 20,000x max are sourced. but Push Gaming does not publish a bonus trigger frequency, so we modelled it (about one bonus every ~180 spins) as a documented assumption; the bonus payout distribution and base-versus-feature split are model assumptions calibrated to the published RTP and the 20,000x cap. note that most casinos run the 96.83% version; the 94.25% rung is published but less commonly deployed. the cross-version comparison holds all inputs constant, so it is robust; absolute bonus figures are estimates.
how long bankrolls survived
the stake sets the clock. at the $100 bankroll the default-version median ran 573 spins at $0.50. the cluster-and-tumble base delivers frequent small wins that stretch sessions out, but the jar-wild multipliers that produce the famous wins only stack up in the free-spins round, and most sessions never get there.
bust rates
bust rates within the 2,000-spin cap, 96.83% default version, 95% confidence intervals:
| $50 bankroll | $100 | $200 | |
|---|---|---|---|
| $0.20/spin | 71.9% ±0.9 | 42.6% ±1.0 | 3.3% ±0.4 |
| $0.50/spin | 89.1% ±0.6 | 77.5% ±0.8 | 53.9% ±1.0 |
| $1.00/spin | 94.9% ±0.4 | 89.2% ±0.6 | 78.1% ±0.8 |
plain reading: hold the bankroll at $100 and move the stake from $0.20 to $0.50, and the bust rate jumps from 42.6% to 77.5%. the only safe cell is $0.20 against $200 (3.3%).
the bonus wait, and what it pays
on our modelled trigger rate (about 1 in 180 spins, an assumption), the free-spins round is where the multipliers compound and the big wins live: our calibration routes about 63% of total RTP through the feature. the payout side (model-based estimates): the average bonus paid 110x stake but the median was just 60x, and 43% of bonuses paid under 50x. the viral clips are the runaway-multiplier tail; a typical bonus pays a fraction of that.
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 $0.45. then it leaps: the 90th percentile kept $349. the bright theme hides the usual shape: sessions either die or, rarely, run hot on a multiplier streak.
the rtp version lottery
jammin' jars is published at 96.83% and also at 94.25%, a ~2.6-point spread the casino selects. most operators run the higher version, but the lower one is out there and the player never sees which they are on. we ran the full grid at both; same model, same inputs, only the RTP changed:
| cell | 96.83% default | 94.25% version | delta |
|---|---|---|---|
| $0.20/$100 bust | 42.6% ±1.0 | 46.9% ±1.0 | +4.3pp |
| $0.50/$100 bust | 77.5% ±0.8 | 81.1% ±0.8 | +3.6pp |
| $0.50/$200 bust | 53.9% ±1.0 | 58.4% ±1.0 | +4.4pp |
| $1.00/$200 bust | 78.1% ±0.8 | 80.7% ±0.8 | +2.5pp |
the lower version raised the bust rate in every cell. 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 182,961,463 simulated spins (180,000 sessions across two RTP versions), with 95% confidence intervals shown. hit frequency (26.39%) is from a single source; the bonus trigger frequency is not published and was modelled (~1 in 180) as a documented assumption; the bonus payout distribution and base-versus-feature split are modelled. the base-game ceiling (300x) is a reasoned estimate; the 20,000x max is a free-spins event. casino-by-casino RTP figures are the published ladder, not statements about any operator's current configuration. model validation: jammin-jars v1, analytic calibration exact at 96.83% and 94.25%, 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
63% of this game's RTP is locked inside the bonus you rarely trigger; the base game on its own returns just 36%.
A normal spin in our simulation never returned more than ~300x (€150). The 20,000x top win is a feature event, it only came out of the bonus. (base-game ceiling: model estimate)
Play the Jammin' Jars demo, or stress-test it
Looking for the Jammin' Jars demo or free play? A demo shows you a handful of spins. Our free simulator runs Jammin' Jars 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.
FAQ
Is there a Jammin' Jars demo or free play?
Yes. You can play Jammin' Jars 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.