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10tests100,000spins open data closed rig 18+
Gates of Olympus — Slotester Lab test cover
10,000 SPINS 50 BUYS DEMO SERVER AI-TESTED · HUMAN-CHECKED
Lab verdict

A bonus-first slot with a long, thin base game. Over 10,000 spins the natural bonus paid better than the purchase did.

Base gameaverage
Bonus valueaverage
Variancehigh

measured over 10,000 spins · 50 buys

Is Gates of Olympus worth playing?

quick answer

Gates of Olympus returned 80.16% of stake over 10,000 demo spins at 2.00 (95% CI 68.6–91.8%), well under the declared 96.5%, with a hit on 28.9% of spins and a median winning spin of 0.8x. The natural free spins came 21 times, once per 476 spins on average, and paid 59x the bet on average; the 50 bonus buys at 100x returned only 0.77x of their price, with 37 of 50 ending below what they cost.

Test card

10,000 spins · USD 2.00 bet · every request logged
Spins10,000
BetUSD 2.00
RTP declared96.50%
RTP measured80.16% (95% CI 68.6–91.8)
Hit frequency29% · every 3.46
Dead streak max / avg23 / 3.43
Median hit0.80x
Max win (base game)221.3x · spin 3799
Free spins, natural21 · every 476.2 spins · mean 59.1x
Balance start → end100,000 → 96,033
Balance in bets over the base series
Win distribution, x bet
Spin log (txt) CSV 10,000 rows · round, bet, win, x, balance

Play Gates of Olympus demo

same math as real play · demo balance
Gates of Olympus: base game, start screen
Free demo · no registration · plays on the provider's official server · 18+ Responsible gambling

Bonus buy lab

50 buys × 100x · USD 200 each
Results, x price (amber = below price)
  1. buy 010.20x
  2. buy 020.68x
  3. buy 031.55x
  4. buy 041.17x
  5. buy 053.19x
  6. buy 061.78x
  7. buy 070.18x
  8. buy 080.36x
  9. buy 090.21x
  10. buy 100.55x
  11. buy 110.62x
  12. buy 120.18x
  13. buy 131.06x
  14. buy 140.46x
  15. buy 150.94x
  16. buy 160.82x
  17. buy 172.48x
  18. buy 180.93x
  19. buy 190.68x
  20. buy 202.52x
  21. buy 210.51x
  22. buy 220.07x
  23. buy 230.07x
  24. buy 240.44x
  25. buy 250.32x
  26. buy 260.78x
  27. buy 270.59x
  28. buy 281.36x
  29. buy 291.86x
  30. buy 300.29x
  31. buy 310.17x
  32. buy 320.86x
  33. buy 330.20x
  34. buy 340.27x
  35. buy 350.19x
  36. buy 362.04x
  37. buy 370.20x
  38. buy 380.07x
  39. buy 391.55x
  40. buy 400.32x
  41. buy 410.54x
  42. buy 420.34x
  43. buy 430.11x
  44. buy 440.26x
  45. buy 450.41x
  46. buy 460.18x
  47. buy 471.35x
  48. buy 480.87x
  49. buy 491.30x
  50. buy 500.48x

mean 0.77x · median 0.52x · 37 of 50 below price · best 3.19x · worst 0.07x

Free spins anatomy
Spins per bonus (avg / min–max)15.2 / 15–20
Retriggered4%
Multiplier total (avg / max)35 / 148
Bonuses that paid nothing0%
free spins, bonus buy, round 1001, result 23.2 (tab capture, with sound)
Buy ledger
Spent
USD 10,00050 × USD 200
Returned
USD 7,71277% · CI95 57–97%
Net
−USD 2,288−11.4 buys
Break-even or better
13 / 5026%
Paid 2× price or more
4 / 508%
Price in base spins
100natural trigger every ~476 spins

One buy costs 100 base spins; a natural bonus came once per 476 spins, so buying reached the feature about 5× faster. Natural bonus paid 59.1x of the bet, bought bonuses averaged 77x.

Risk profile

how much bankroll this run needed
1,985xmax drawdown, in bets (by spin 10000)
-1,984xlowest point vs start
23longest dead streak, spins
Bankroll survival in this run
50 betsbust at spin 74
100 betsbust at spin 139
200 betsbust at spin 660

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

7 rules screens from the game

Gates of Olympus plays on a 6×5 grid with no paylines: eight or more matching symbols anywhere on the screen pay, then the winning symbols are removed and new ones tumble down, so one spin can chain several wins. In our run the longest chain in the base game was 11 tumble steps (round 5074, a 13x win), and every one of the 107 base-game hits above 10x came from a chain rather than a single screen.

Multiplier orbs land randomly with values from 2x to 500x. They do nothing on their own: at the end of a tumble sequence all orbs on screen are added together and applied to that spin's total win, so an orb only matters when there is a paying chain under it. The 221x base-game hit on round 3799 was a six-step chain.

Four or more Zeus scatters trigger 15 free spins. Inside the feature the orb values accumulate into a total multiplier that grows through the whole bonus and is applied to every subsequent win; three scatters award five extra spins. In this run all 21 natural bonuses ran the base 15 spins, and among the 50 bought bonuses only 2 retriggered.

The ante bet raises the stake by 25% and doubles the chance of scatters landing; buying the feature costs 100x the current bet and starts the 15 spins immediately. The build we tested reports the same 96.50% RTP for regular play, ante play and the purchase.

Mechanics7 from the rules screens
  • Cascading reels
  • Multiplier
  • Free spins
  • Retrigger
  • Scatter symbol
  • Bonus buy
  • Extra bet
Paytable
x total bet · bar = top payout on a log scale
symbol 8-910-1112+
Crown 10x 25x 50x
Hourglass 2.5x 10x 25x
Ring 2.0x 5.0x 15x
Chalice 1.5x 2.0x 12x
Red gem 1.0x 1.5x 10x
Purple gem 0.8x 1.2x 8.0x
Yellow gem 0.5x 1.0x 5.0x
Green gem 0.4x 0.9x 4.0x
Blue gem 0.3x 0.8x 2.0x

Bet range 0.20 – 24,000 per spin · payouts read from the game's paytable at bet 2.00

Verdict

who it suits, who should skip it

Who it suits: players who want the free spins and accept a base game that mostly exists to reach them. The long-run picture is a slow bleed with rare spikes: the balance fell for almost the entire 10,000-spin series and ended 1,984 bets down, with the deepest point at the very end. A 50-bet bankroll was gone by spin 74, 100 bets by spin 139, 200 bets by spin 660.

The natural bonus is where the money came from. Twenty-one triggers paid 59x the bet on average, four of them above 100x (219x on round 5199, 203x on round 7561, 174x on round 1929, 116x on round 2180), and together they made up 15.5% of everything the game returned. Waiting for the trigger took 476 spins on average, which is 4.8 buy prices.

Who should skip it: anyone planning to buy bonuses at 100x. Fifty purchases returned 0.77x of their price on average, the median was 0.54x, 37 of 50 lost money, 24 lost more than half, and the best of them paid 3.19x. Compared with the 2,000-spin pilot, where 20 buys averaged 1.44x, this larger sample shows how much the purchase result swings; treat any buy-value figure from a short test with caution.

Measured upsides
  • Natural free spins paid 59x the bet on average and came four times above 100x in 10,000 spins
  • Hit frequency of 28.9% keeps the reels moving; the longest drought was 23 spins
  • Every base-game win above 10x came from a tumble chain, so the mechanic is visible and readable
  • Full spin log and per-round CSV available for anyone who wants to check the numbers
Measured downsides
  • Measured RTP 80.16% over 10,000 spins, 16 points under the declared 96.5%
  • 50 bonus buys returned 0.77x of price; 37 of 50 lost money
  • The balance fell almost continuously and ended 1,984 bets down; a 200-bet bankroll lasted 660 spins
  • Multiplier orbs on dead screens are common and pay nothing
What the AI noticed during the run
  • Longest drought: 23 dead spins, rounds 8975–8997; a second run of 21 at rounds 690–710. Only two streaks over 20 in 10,000 spins, none over 30.
  • Biggest base-game hit: 221x on round 3799, a six-step tumble chain. Only three base-game rounds cleared 100x (3799, 9286 at 107x, 8849 at 100x).
  • Natural bonus every 476 spins on average: 21 triggers, results from 8x (round 6802) to 219x (round 5199). Every one ran exactly 15 spins.
  • The 50 buys were far worse than the pilot's 20: mean 0.77x versus 1.44x. Median 0.54x, best 3.19x (buy 5, 20 spins, multiplier total 65), worst 0.07x (buy 38).
  • Hit frequency held between 27% and 31% in every 2,000-spin block, but the return did not hold: the first 1,000 spins paid 67% and the last 1,000 paid 55%, so the base game never carried the balance.

Method & data

open data · closed rig

10000 base-game spins at a fixed USD 2.0 bet; 50 bonus buys at 200.0 each (100.0x) on the official Pragmatic Play demo server (jurisdiction 99, RTP profile 96.5%); every request and response logged; test run 2026-09-03.

The test rig plays the official demo build over the network and records every server round: bet, win, cascade steps, free spins, collect. Screenshots and video come from a real browser session. A human editor checks the numbers and the text before publication. How we test →

Test history
2026-09-031,000 spins · RTP 54.8%
2026-09-032,000 spins · RTP 64.3%
2026-09-0310,000 spins · RTP 80.2%

FAQ

6 questions · answered from the log
Is Gates of Olympus rigged? The demo paid me nothing for an hour.
Lab answer

The demo runs on Pragmatic Play's own server with the same math as real play, and our 10,000 logged spins say the base game is simply thin: it hit on 28.9% of spins, the median hit was 0.8x, and the balance dropped 1,984 bets over the series. That is the design, not a broken build. The long-run RTP we measured was 80.16%, with a 95% interval of 68.6–91.8%.

How many spins between free spins?
Lab answer

476 on average in our run: 21 natural triggers in 10,000 spins. The bonuses paid 59x the bet on average and four of them cleared 100x, the biggest 219x on round 5199. None of the 21 retriggered.

What does the ante bet actually change?
Lab answer

It raises the stake by 25% and doubles the number of scatters on the reels, so natural triggers come roughly twice as often. The paytable and the multiplier orbs do not change. We played this series at the regular bet, so the 476-spin trigger rate above is without ante.

Should I buy the bonus or wait for it?
Lab answer

On this run, waiting won. Fifty buys at 100x returned 0.77x of their price on average and 37 of them lost; the natural bonuses paid 59x the bet each and came once per 476 spins, which is under five buy prices of base play. In our shorter pilot the buys averaged 1.44x, so the purchase result swings hard between samples.

What was the biggest hit without the bonus?
Lab answer

221x the bet on round 3799, a six-step tumble chain. Only three base-game rounds passed 100x in 10,000 spins (3799, 9286 at 107x, 8849 at 100x). Counting natural bonuses, the largest single round was 247x on round 5199.

How much do I need to sit through the dead spins?
Lab answer

In our series a 50-bet bankroll was gone by spin 74, 100 bets by spin 139 and 200 bets by spin 660. The longest drought was 23 spins (rounds 8975–8997), so the problem is not long gaps but the small size of the hits that break them.

Field notes

0 notes
Slotester Labmeasured run · every request logged measured
  • spins10,000
  • bet2.00
  • result-1,984x
  • RTP measured80.2%
  • bonuses21
  • max win221.3x

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