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Power of Thor Megaways — Slotester Lab test cover
10,000 SPINS 50 BUYS DEMO SERVER AI-TESTED · HUMAN-CHECKED

Pragmatic Play · 2021 · tested 2026-09-08

Power of Thor Megaways

Power of Thor Megaways free demo review: 10,000 logged spins returned 91.81% of stake, 33 natural free-spin rounds landed one every 303 spins, and fifty 100x buys came back at 0.80x.

Lab verdict

A tumble slot where the base game returns three quarters of the money and the free spins decide the rest. Thirty-three natural bonuses paid a median of 35.5x; the one on round 8200 paid 378.1x. The 100x buy returned 0.80x on average and beat its price eleven times in fifty.

Base gamestrong
Bonus valueaverage
Variancehigh

measured over 10,000 spins · 50 buys

Is Power of Thor Megaways worth playing?

quick answer

Across 10,000 rounds on the demo at a 2.00 stake the game gave back 91.81% against the 96.55% the game declares, inside a 95% interval of 79.8 to 103.9%. Roughly one spin in 2.7 paid something, the median paying spin was 0.8x, and 63.4% of rounds were blank. Natural free spins arrived 33 times, a median 35.5x each, and fifty purchased rounds at 100x returned a mean of 0.80x with 39 of them under their price.

Test card

10,000 spins · USD 2.00 bet · every request logged
Spins10,000
BetUSD 2.00
RTP declared96.55%
RTP measured91.81% (95% CI 79.8–103.9)
Hit frequency37% · every 2.73
Dead streak max / avg16 / 2.72
Median hit0.80x
Max win (base game)125.2x · spin 543
Free spins, natural33 · every 303 spins · mean 55.8x
Balance start → end100,000 → 98,362
Balance in bets over the base series
Win distribution, x bet
Spin log (txt) CSV 10,000 rows · round, bet, win, x, balance

Play Power of Thor Megaways demo

same math as real play · demo balance
Power of Thor Megaways: 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 011.18x
  2. buy 021.26x
  3. buy 030.21x
  4. buy 040.10x
  5. buy 050.26x
  6. buy 060.60x
  7. buy 070.05x
  8. buy 080.38x
  9. buy 090.23x
  10. buy 104.40x
  11. buy 110.53x
  12. buy 120.65x
  13. buy 130.20x
  14. buy 140.44x
  15. buy 151.02x
  16. buy 160.17x
  17. buy 170.43x
  18. buy 180.25x
  19. buy 190.11x
  20. buy 200.37x
  21. buy 210.28x
  22. buy 220.12x
  23. buy 230.20x
  24. buy 242.14x
  25. buy 250.20x
  26. buy 260.07x
  27. buy 276.83x
  28. buy 282.96x
  29. buy 290.24x
  30. buy 301.09x
  31. buy 310.55x
  32. buy 320.15x
  33. buy 330.28x
  34. buy 340.37x
  35. buy 350.70x
  36. buy 361.93x
  37. buy 373.56x
  38. buy 381.22x
  39. buy 390.25x
  40. buy 400.72x
  41. buy 410.04x
  42. buy 420.93x
  43. buy 430.40x
  44. buy 440.07x
  45. buy 450.06x
  46. buy 460.46x
  47. buy 470.06x
  48. buy 480.01x
  49. buy 490.27x
  50. buy 500.91x

mean 0.80x · median 0.37x · 39 of 50 below price · best 6.83x · worst 0.01x

Free spins anatomy
Spins per bonus (avg / min–max)11.2 / 10–18
Retriggered26%
Multiplier total (avg / max)1 / 1
Bonuses that paid nothing0%
free spins, bonus buy, round 1001, result 85.8 (tab capture, with sound)
Buy ledger
Spent
USD 10,00050 × USD 200
Returned
USD 7,98280% · CI95 45–114%
Net
−USD 2,018−10.1 buys
Break-even or better
11 / 5022%
Paid 2× price or more
5 / 5010%
Price in base spins
100natural trigger every ~303 spins

One buy costs 100 base spins; a natural bonus came once per 303 spins, so buying reached the feature about 3× faster. Natural bonus paid 55.8x of the bet, bought bonuses averaged 80x.

Risk profile

how much bankroll this run needed
1,183xmax drawdown, in bets (by spin 6977)
-1,015xlowest point vs start
16longest dead streak, spins
Bankroll survival in this run
50 betsbust at spin 218
100 betsbust at spin 2237
200 betsbust at spin 2484

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

Six Megaways reels deal two to seven symbols apiece, and a separate top row above reels 2 to 5 travels right to left on its own. Payouts form left to right along unbroken chains of one symbol beginning on the first reel, any symbol size, for as many as 117,649 ways. Thor himself is the only symbol that pays for two, 0.5x the bet, and tops out at 20x for six; the four warriors below him and the card ranks are cheap on their own, which is why single evaluations rarely matter here.

Every win tumbles: paid symbols vanish, what remains drops, and fresh symbols arrive from above until nothing new connects. The other thing the top row carries is the hammer, a symbol two positions wide that does not pay. When it lands fully visible above reels 2 to 5, or is pushed to a new spot by a tumble, every symbol on the reels underneath it turns wild. Ordinary wilds also live only on that top row.

Four scatters spelling THOR start the bonus with 10 free spins; five scatters give 14, six give 18, and so on to 30 for nine. Between 10 and 18 spins the game offers a wheel: each successful spin adds four more free spins, a miss forfeits the whole round, and the printed odds are 62.81%, 70.39% and 75.02% for the three steps. The lab never took the wheel: every triggered round was collected as dealt, so the 33 natural bonuses in this run were 28 rounds of 10 spins and 5 rounds of 14. Inside the feature a win multiplier starts at 1x and grows by one with every tumble, three more scatters add four spins, and the hammer keeps working.

The purchase option is priced at 100x and deals a random scatter count, so a bought round opens with anywhere from 10 to 22 spins; the rules screen quotes 96.97% for bought rounds against 96.55% for the base game. Wins are capped at 5,000x the bet; a free-spin round hitting the cap is closed immediately with the remaining spins forfeited. There is no ante bet option in this build.

Mechanics9 from the rules screens
  • Megaways
  • Cascading reels
  • Wild symbol
  • Scatter symbol
  • Free spins
  • Multiplier
  • Retrigger
  • Bonus buy
  • Gamble feature
Paytable
x total bet · bar = top payout on a log scale
symbol 23456+
Thor 0.5x 1.0x 5.0x 10x 20x
Blue-bearded warrior 0.5x 2.0x 2.5x 5.0x
Red-bearded warrior 0.5x 1.0x 1.5x 2.5x
Valkyrie 0.3x 0.5x 0.8x 2.0x
A 0.2x 0.4x 0.6x 1.5x
K 0.2x 0.4x 0.5x 1.3x
Q 0.2x 0.3x 0.5x 1.0x
J 0.2x 0.3x 0.5x 0.9x
10 0.1x 0.2x 0.4x 0.8x
9 0.1x 0.2x 0.4x 0.6x

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

The balance curve of this run has no second act. It touched its high of 168 bets up on spin 959, the round where a 14-spin bonus paid 123.2x, then slid for six thousand rounds to 1,015 bets under the starting line at spin 6977 and finished 819 bets down. The 378.1x round at spin 8200 pulled it back by about two hundred bets and that was the last large event.

What the numbers say about the design: without the feature the base game returned 72.99% of stake, and the free spins added another 20 points to reach 91.81%. Bonuses were worth 20% of everything paid out, so waiting for them is the game, and the wait ran from 11 spins to 1,347 spins between triggers. Nine of the 33 rounds paid under 10x, seven paid over 100x.

Three fixed stakes were tested against this curve: the 50-bet stake emptied on spin 218, the 100-bet stake on spin 2237, the 200-bet stake on spin 2484. The worst stretch was 1,183 bets from peak to trough. If you play Power of Thor Megaways for the bonus, that is the depth a base-game session can reach before it shows up.

The purchase is the more predictable route and still a losing one in this sample. Fifty rounds at 200.00 each returned 0.80x on average, a median of 0.37x, with seven rounds paying under a tenth of their price and eleven paying above it. The single 6.83x buy, number 27, returned more than the eight purchases that followed it put together. Bought rounds retriggered in 13 of 50 cases, which is the only way a 10-spin purchase becomes 14 or 18 spins without the wheel.

Measured upsides
  • One spin in 2.7 paid, and two of the three largest base rounds, 124.8x and 93.5x, needed only two and three tumbles.
  • Bonuses can carry the run: seven of 33 natural rounds paid over 100x, and the 8200 round alone returned 756 in a 2.00 game.
  • Purchases retriggered in 26% of cases, and no bought round came back at zero.
Measured downsides
  • 91.81% measured against 96.55% declared, with the base game alone at 72.99%.
  • Nine of 33 natural bonuses paid under 10x, and the median bonus, 35.5x, does not cover a 300-spin wait at 1x per spin.
  • Thirty-nine of fifty purchases lost money; the median one returned 0.37x of its 100x price.
  • Every fixed bankroll tested, 50 to 200 bets, was gone before spin 2500.
What the AI noticed during the run
  • Free spins landed 33 times in 10,000 rounds, one trigger per 303 spins over the run, though single gaps ranged from 11 spins (rounds 693 to 704) to 1,347 spins (rounds 8462 to 9809).
  • The biggest round, 378.1x on spin 8200, came from a 14-spin natural bonus that ran 29 tumble steps; the largest base-game evaluation was 125.2x on round 543 after four tumbles.
  • 63.4% of spins paid nothing, the longest blank run was 16 rounds (5730 to 5745), and no drought reached 20.
  • Wins of 10x or more showed up 134 times, about one in 75 spins; 23 of them cleared 50x and 9 cleared 100x.
  • Fifty buys at 100x: 37 rounds stayed at 10 spins, 11 retriggered to 14, 2 reached 18, and the total returned was 39.9 buys' worth of stake, 79.7% of what was paid.
  • Balance peaked 168 bets up on spin 959 and bottomed out 1,015 bets down on spin 6977; the run closed 819 bets below the start.

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 96.55%); every request and response logged; test run 2026-09-08.

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
2026-09-0810,000 spins · RTP 91.8%

FAQ

9 questions · answered from the log
Did the lab spin the gamble wheel for extra free spins?
Lab answer

No. Every triggered round, natural or bought, was collected as dealt. That keeps the results comparable with the base 10-spin award; the wheel's own odds are on the rules screen at 62.81%, 70.39% and 75.02% per step, with a miss costing the whole round.

Why 91.81% and not the 96.55% on the help screen?
Lab answer

Because the game moves in 100x steps, a 10,000-spin sample carries a 95% interval from 79.8% to 103.9%. The declared figure sits inside it. Another ten thousand spins could land above the line just as easily.

How much of the money came from free spins?
Lab answer

About a fifth. The base game returned 72.99% of stake on its own; the 33 bonus rounds added 20.1% of everything paid out and lifted the total to 91.81%.

Typical bonus: what does 10 free spins actually return?
Lab answer

Half of the natural rounds paid 35.5x or less, while the mean sat at 55.8x. The spread is wide: nine rounds paid under 10x, seven paid over 100x, and the top one, 378.1x on round 8200, was worth more than the bottom twenty together.

Is buying free spins for 100x a better deal than waiting?
Lab answer

Judging by fifty purchases, no. At 200.00 each they came back at 0.80x on average and 0.37x at the median; 39 of them lost money. Waiting cost roughly 303 spins per natural trigger, which is about 300x in stake for a bonus that paid a median 35.5x.

The hammer: does it matter in the base game?
Lab answer

Yes, when it lands fully. It is a two-wide symbol on the moving top row; when it sits fully above reels 2 to 5 it turns everything below it wild. Two of the three biggest base-game rounds, 124.8x on spin 9928 and 93.5x on spin 7530, finished in two and three tumbles, which points to reels turned wild rather than a long cascade; the log records the tumble count, not which symbol did it.

How long can it go without paying?
Lab answer

The longest blank stretch was 16 spins, rounds 5730 to 5745, and five stretches reached 15. Blank spins were 63.4% of the run. The longer risk is the wait for the feature: up to 1,347 spins between triggers here.

Did a small bankroll survive?
Lab answer

None of the three tested did. Fifty bets ran out on spin 218, one hundred on spin 2237, two hundred on spin 2484. The deepest fall from a peak was 1,183 bets.

How close did the run get to the 5,000x cap?
Lab answer

It never came into play. The run's best round was 378.1x against a ceiling of 5,000x, and a free-spin round that touches the ceiling is cut short at once; the rules also quote 96.97% for purchased rounds against 96.55% for base play.

Field notes

0 notes
Slotester Labmeasured run · every request logged measured
  • spins10,000
  • bet2.00
  • result-819x
  • RTP measured91.8%
  • bonuses33
  • max win125.2x

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