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Secrets of Papyrus — Slotester Lab test cover
10,000 SPINS 50 BUYS DEMO SERVER

Mascot Gaming · measured RTP 93.6% · tested 2026-11-10

Secrets of Papyrus

Across 123 Secrets of Papyrus free spins rounds, 73 earned in 10,000 logged demo rounds at 93.6% RTP and 50 bought, sticky Mysteries never filled the middle three reels.

In numbers: the lab's RTP test on the official demo server measured 93.6% against 95.89% declared over 10,000 logged rounds; 35.8% of rounds paid; a natural bonus landed once per 137 rounds (73 in total) and a bonus round paid a median 21x the stake, mean 51.6x, trigger spin included; 50 bonus buys at 100x returned 0.91x of their price on average, 70% of them below the price; the biggest round paid 328.0x; the longest dry run was 20 spins.

Secrets of Papyrus demo

United Statesavailable at Cafe Casino
Secrets of Papyrus demo game field
Exclusive bonus at Cafe Casino · for players from the United States 300% up to $2,000 + 150 FS
Get bonus
Free demo · no registration · plays on the provider's official server · 18+ Responsible gambling

Test card

10,000 spins · FUN 2.00 bet · every request logged
Spins10,000
BetFUN 2.00
RTP declared95.89%
RTP measured93.56% (approximate 95% CI 77.6–109.5)
Hit frequency36% · every 2.79
Dead streak max / avg20 / 2.81
Median hit0.75x
Max win (no bonus round)50.6x · round 7447
Free spins, natural73 · 7.3 bHz · every 137 spins · mean bonus round payout 51.7x stake
Balance start → end10,000 → 8,713
Balance in bets over the base series
Win distribution, x bet
test logs · 1 run · every request loggedtest record ↓
  1. 012026-11-1010,000 rounds · 50 buysfiles & checksums ↓93.56%RTP5 files · SHA-256 ↓

each run keeps its own spin log, CSV and raw server journal with checksums; the figures on this card combine all runs

Bonus buy lab

50 buys × 100x · FUN 200 each
Results, x price (muted = below price)
  1. buy 010.59x
  2. buy 020.56x
  3. buy 030.43x
  4. buy 040.17x
  5. buy 050.84x
  6. buy 060.30x
  7. buy 073.50x
  8. buy 080.67x
  9. buy 090.48x
  10. buy 100.26x
  11. buy 110.36x
  12. buy 120.05x
  13. buy 131.52x
  14. buy 141.63x
  15. buy 151.11x
  16. buy 160.36x
  17. buy 170.46x
  18. buy 180.86x
  19. buy 190.74x
  20. buy 202.95x
  21. buy 210.88x
  22. buy 220.69x
  23. buy 230.27x
  24. buy 240.79x
  25. buy 250.64x
  26. buy 260.14x
  27. buy 270.73x
  28. buy 281.18x
  29. buy 290.12x
  30. buy 302.83x
  31. buy 310.31x
  32. buy 320.06x
  33. buy 332.01x
  34. buy 342.01x
  35. buy 350.51x
  36. buy 360.65x
  37. buy 370.43x
  38. buy 381.14x
  39. buy 390.50x
  40. buy 400.02x
  41. buy 413.91x
  42. buy 421.60x
  43. buy 431.58x
  44. buy 440.13x
  45. buy 450.57x
  46. buy 460.85x
  47. buy 470.11x
  48. buy 480.27x
  49. buy 491.34x
  50. buy 501.54x

mean 0.91x · median 0.644× price (FUN 128.85) · 35 of 50 below price · best 3.91x · worst 0.02x

Free spins anatomy · 50 purchases
Spins per bonus (avg / min–max)10 / 10–10
Extended0.0%
Bonuses that paid nothing0%

Free spins here cannot be restarted by new triggers; the only extension is 3 extra spins for covering all 12 cells of the middle three reels with sticky Mysteries. Every free spins round of this run was checked for it, 73 earned and 50 bought, and none reached it: earned rounds peaked at 7 sticky Mysteries and bought ones at 10.

Chained Mystery symbols collect on reels 2 to 4 through 10 free spins bought for FUN 200 at a FUN 2.00 bet; the last spin starts with five locked and no reel full, and the YOU WON scroll reads FUN 33.70 · Recorded in a separate browser session, outside the statistical samples.
Buy ledger
Spent
FUN 10,00050 × FUN 200
Returned
FUN 9,131.4091.31% · approximate 95% CI 67–116%
Net
−FUN 868.60−4.3 buys
Break-even or better
15 / 5030%
Paid 2× price or more
6 / 5012%
Price in base spins
100natural trigger every ~137 spins

One ticket equals 100 ordinary stakes. Natural bonuses occurred once per 137 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
1,322xmax drawdown, in bets (by spin 9158)
-852xlowest point vs start
20longest dead streak, spins
Bankroll survival in this run
50 betsbust at spin 346
100 betsbust at spin 412
200 betsbust at spin 609

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

18 rules screens from the game

Twenty fixed lines cross the five-reel, four-row grid of Secrets of Papyrus, each paying from the leftmost reel rightwards, and a line keeps only its highest win. At a FUN 2.00 bet five Blue Seals pay FUN 500.00, which is 250x the stake; the Sealed Scroll, Hourglass, Inkwell and Quill, and Pyramid Map follow, with card ranks A to 10 at the bottom of the table. Mascot rates the game high volatility and caps a round at 2000x.

The Mystery symbol, a bald priest holding a crescent staff, appears only on the middle three reels and substitutes for every regular symbol. A trio of them anywhere there opens 10 free spins, though the spin that brings them pays its own line wins first.

Inside the bonus each newly landed Mystery is chained to its cell until the last spin, while the three that opened the round do not stay. Covering all 12 middle cells with sticky Mysteries adds 3 free spins. Line wins use the regular paytable, with no multiplier.

Three extras sit under Risk'n'Buy: Boost puts a fixed surcharge on each bet to raise the trigger chance, a purchase of the 10 free spins costs 100 times the bet (FUN 200 at the test stake), and the Risk Wheel gambles a win for as much as x1000 of the total bet. Mascot declares 95.89% for plain play and 95.40% with Risk'n'Buy, and bets range from FUN 0.20 to FUN 40.00. The test bought the regular free spins only and never switched on Boost or turned the wheel.

Mechanics6 from the rules screens
  • Free spins
  • Wild symbol
  • Sticky symbol
  • Bonus buy
  • Extra bet
  • Gamble feature
Paytable
x total bet · bar = top payout on a log scale
symbol 345
Blue Seal 3.75x 25x 250x
Sealed Scroll 2x 12.5x 100x
Hourglass 1.25x 7.5x 50x
Inkwell and Quill 0.75x 4.5x 30x
Pyramid Map 0.5x 3x 20x
A 0.4x 2.25x 10x
K 0.3x 1.5x 6.5x
Q 0.2x 1x 4.25x
J 0.15x 0.6x 2.5x
10 0.15x 0.6x 2.5x

Bet range FUN 0.20 – 40 per spin · payouts read from the game's paytable at bet FUN 2.00

Verdict

More chained Mysteries, bigger bonuses

Earned free spins finished with four sticky Mysteries at the median and bought ones with seven, out of the 12 cells on the middle three reels. Ticket 14 came closest to a full block, with reels 3 and 4 covered and 10 Mysteries in all, and paid FUN 326.60.

Five Blue Seals on one line, 250x the stake, turned up four times in the 10,000 ordinary rounds and three times in the 50 purchases. Those four lines alone made FUN 2,000, 10.69% of the FUN 18,712.50 the ordinary series paid, and they sit inside four of the five largest rounds.

Purchased at FUN 200 each, the 50 tickets brought back 91.31% of their cost; the median ticket paid FUN 128.85, 0.644x the price, and ticket 41 led with FUN 781.80.

At seven sticky Mysteries, the most any earned bonus reached, four rounds came to 208.99x the stake on average, while the eight that ended with one or two made 10.34x. Purchases split the same way, 121.34x across the 27 tickets with seven or more and 14.01x for the five that stopped at three or four.

Measured upsides
  • Four of the five largest rounds held a five-Blue-Seal line worth 250x the stake
  • 73 earned bonuses in 10,000 rounds, one per 137.0 ordinary spins
  • 6 of 50 purchases paid at least double the FUN 200 price, the best 3.909x
Measured downsides
  • Two earned bonuses finished their 10 free spins with a single sticky Mystery
  • Round 1812 paid FUN 500.30 on its trigger spin and then FUN 5.00 from ten free spins
  • Outside the bonus, no round paid more than 50.6x the stake

Test record

10,000 rounds · 50 buys · open data · closed rig

One 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.

result of this run2026-11-10
Measured return 93.56% 95% band 77.6–109.5% · declared 95.89%
  • 10,000rounds logged
  • 36%rounds that paid
  • 328xbiggest round
  • 1 / 137natural bonus rate
  • 0.91xmean of 50 buys
  • 20longest dry streak
return of this run with its 95% banddeclared 95.89%
Run 1 · 2026-11-1010,000 rounds
93.56%95% band 77.6–109.5%
70%80%90%100%110%declared 95.89%
dot = measured return · whisker = approximate 95% band for that mean, given this many rounds
how the return settled, round by round10,000 rounds
93.56% after 10,000 roundsdeclared 95.89%
line = return measured up to that round · the line swings early and calms as rounds pile up
bonus purchases, run by run50 buys
Run 1 · 2026-11-10mean 0.91x · median 0.64x · 35/50 below price
bar = one purchase, what it returned as a multiple of its price · dashed line = the price · square-root scale
The run · tap to open
01run Run 012026-11-10 10,000 rounds at FUN 2.00 · 50 buys · rig 0.9.8 · RTP profile 95.89% measured return93.56%-2.3 pts vs declared 95% band77.6–109.5% natural bonuses73 · 1 / 137 bonus buys, mean0.91x
95% band
77.6–109.5%
rounds that paid
36%
biggest round
328x · round 4,553
longest dry streak
20
natural bonuses
73 · one per 137 rounds
bonus buys
mean 0.91x · median 0.644x · 70% below price
balance start → end
10,000 → 8,713
deepest drawdown
1,322x
Download this run · the square button copies the file’s SHA-256, so you can confirm the download is unchanged

10,000 ordinary rounds, including naturally triggered features, at a fixed FUN 2 bet; 50 bonus buys at FUN 200 each (100x); recorded on the official Mascot Gaming demo server (jurisdiction DEMO, RTP profile 95.89%); every request and response logged; test run 2026-11-10.

The test rig plays the official demo build over the network and records every server round: bet, win, intermediate steps (cascades, respins), 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 → One test, step by step →

CLOSED RIG OPEN DATA

FAQ

7 questions · answered from the log
Do the Mystery symbols that trigger Secrets of Papyrus free spins stay sticky?
Lab answer

No. Only Mysteries that land during the 10 free spins get chained; the three that open the round leave the reels before the first free spin.

Did any Secrets of Papyrus bonus earn the 3 extra free spins?
Lab answer

No. They need all 12 middle cells covered by sticky Mysteries; earned bonuses peaked at 7 and bought ones at 10, so all 123 bonuses, 73 earned and 50 bought, played exactly 10 spins.

What do 100x free spins purchases in Secrets of Papyrus pay back?
Lab answer

Fifty purchases at FUN 200 returned FUN 9,131.40 of the FUN 10,000 spent, and 35 of them paid less than the price. A bought round averaged 91.31x the FUN 2.00 stake and an earned round, trigger spin included, 51.65x; bought rounds also ended on seven sticky Mysteries at the median against four.

Which RTP came out of 10,000 Secrets of Papyrus demo rounds?
Lab answer

Ordinary play returned 93.56% against the declared 95.89%. The total moves in big steps: 73 free spins rounds made 40.30% of what the ordinary series paid and four 250x lines alone 10.69%, so a handful of rounds sets it.

What turnover does a Secrets of Papyrus free spins trigger take without the buy?
Lab answer

FUN 273.97 wagered per trigger at a FUN 2.00 stake: earned triggers averaged one per 137.0 ordinary rounds, 73 across the 10,000. Line wins hand part of that back, so the net cost is lower.

Which line pays the most in Secrets of Papyrus?
Lab answer

Five Blue Seals pay 250x the stake, FUN 500.00 at a FUN 2.00 bet. That line came up seven times in this run, four in the ordinary rounds and three in the purchases; round 4553, the best of the series at 327.95x, got it on free spin 7.

Can Mystery symbols win on the spin that triggers the bonus?
Lab answer

Yes, a trigger spin pays like any other, with the three Mysteries substituting in its lines. Trigger spins paid in 60 of the 73 earned bonuses, FUN 1,146.00 in all, and round 1812's trigger spin made FUN 500.30 through a five-Blue-Seal line with two Mysteries in it.

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Slotester Labmeasured run · every request logged measured
  • spins10,000
  • bet2.00
  • result-644x
  • RTP measured93.6%
  • bonuses73
  • max win, no bonus50.6x

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