Enter your session budget and stake per spin to see how many spins your bankroll covers, expected theoretical loss at 96.5% RTP, and the statistical probability of triggering the free spins bonus at least once during the session.
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How Long Will Your Money Last?
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Total spins
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Expected loss (96.5% RTP)
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Chance of hitting free spins
Based on 96.5% RTP and estimated 1/200 bonus trigger frequency. Actual results vary.
How to Use This Calculator
The calculator uses the game's stated 96.5% RTP and an estimated bonus trigger frequency of 1 per 200 spins (midpoint of the 100-350 range from community data). Enter your budget and stake. The output shows total spins covered, theoretical expected loss across that session, and the binomial probability of hitting the free spins feature at least once. The probability calculation uses the formula: 1 - (1 - 1/200)^spins. A 200-spin session at $1 stake gives roughly a 63% chance of triggering the bonus at least once.
Interpreting the Results
The expected loss figure represents the statistical average outcome over many identical sessions, not a guaranteed result for any single session. At 96.5% RTP on a $100 budget with $1 stakes (100 spins), the theoretical expected loss is $3.50. Actual results in any single session can be significantly higher or lower depending on bonus triggers and collect outcomes. The bonus probability column is the most useful planning metric: if the calculation shows less than 50% chance of hitting the bonus in your planned session, consider either a smaller stake (more spins) or accepting that the session may be base-game-only.
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Frequently Asked Questions
Does the bonus pot always pay out at the end of free spins?
No. The bonus pot fills reels 1-4 after all free spins end, then reel 5 respins once. If reel 5 lands any non-Collect symbol, the pot is not paid. This outcome is possible and accounts for some lower-result bonus activations. There is no partial payout — it is full pot or nothing on that final respin.
What is the difference between Multiplier Collect and Expanding Collect?
Multiplier Collect takes all scarab values currently visible, sums them, then multiplies the total by 2x, 3x, 5x, 10x, or 25x. Expanding Collect fills every reel that already has at least one scarab with new random-value scarabs — increasing the number of scarabs before summing and paying. Expanding Collect can produce larger raw totals when multiple reels are already scarab-heavy; Multiplier Collect is higher value when fewer but well-valued scarabs are present.
Why does the casino show 95.5% RTP instead of 96.5%?
Pragmatic Play provides multiple RTP configurations for the same game. Casinos license the version they choose to run. The 95.5% version is a reduced math model — mathematically identical gameplay, statistically lower return over time. The difference is roughly $5 per 500 spins at $1 stake. Always check the game info panel at each casino before playing.
How often does the free spins feature trigger?
Three pyramid scatters must land simultaneously on reels 2, 3, and 4. Community data from Slot Tracker puts the average trigger at approximately one bonus per 100-350 spins, with 200 spins as a midpoint estimate. A 200-spin session has roughly 63% probability of at least one trigger. Individual sessions vary significantly due to variance.
Is John Hunter Scarab Queen available on mobile?
Yes. The game uses HTML5 and runs in any modern mobile browser — iOS Safari, Android Chrome — without requiring an app download. The 5x3 grid adjusts to portrait and landscape orientations. Turbo spin is available on mobile via the dedicated button.
Can the free spins retrigger, and is there a limit?
Free spins retrigger by landing 3 pyramid scatters on reels 2, 3, and 4 during the feature. Each retrigger awards 8 additional spins. There is no limit on the number of retriggers — the feature can extend indefinitely if scatters continue to land. Each additional spin also feeds scarab values into the accumulating bonus pot.
What is the maximum possible win on a single spin in base game?
In base game, the maximum single-trigger outcome requires multiple scarabs at high values combined with a 25x Multiplier Collect. The documented theoretical ceiling is 10,500x stake. At $0.25 minimum bet that is $2,625; at $1 it is $10,500. The Slot Tracker record of €18,620 was achieved in a real-money session.
RTP (Return to Player): The theoretical percentage of total wagered money a slot pays back over a statistically significant number of spins. Scarab Queen's full-odds RTP is 96.5%.
hit rate
Hit Rate: The percentage of spins that produce any win, regardless of size. Scarab Queen's is 40.55% — roughly 4 in 10 spins produce a return.
free spins
Free Spins: 8 bonus spins awarded by 3 scatters on reels 2-4. Retriggers add 8 more with no cap. During free spins, scarab values feed the bonus pot.
volatility
Volatility (Variance): A measure of win frequency vs win size distribution. Medium volatility (Scarab Queen: 3/5) means more frequent smaller wins alongside occasional larger ones, vs high volatility which has longer dry streaks and rarer large wins.
bonus pot
Bonus Pot: During free spins, all scarab values that land are added to a cumulative pot rather than paid immediately. The pot pays (or not) in a single respin after all free spins end.