Skip to content
Big Bad Wolf — Slotester Lab test cover
20,000 SPINS 2 RUNS DEMO SERVER

Quickspin · measured RTP 96.9% · tested 2026-09-30

Big Bad Wolf

The 21 Big Bad Wolf free spins features that reached the brick house paid 44.1% of first-run bonus money, and two demo runs have since logged 20,000 rounds for a measured RTP of 96.9%.

In numbers: the lab's RTP test on the official demo server measured 96.9% against 97.34% declared over 20,000 logged rounds in 2 runs; 31.2% of rounds paid; a natural bonus landed once per 147 rounds (136 in total) and a bonus round paid a median 37.9x the stake, mean 58x, trigger spin included; the biggest round paid 283.4x; the longest dry run was 24 spins.

Same series: Big Bad Wolf Christmas Special, Big Bad Wolf MEGAWAYS — each tested separately

Big Bad Wolf demo

United Statesavailable at Cafe Casino
Big Bad Wolf 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

20,000 spins · EUR 1.00 bet · every request logged
Spins20,000 · 2 runs
BetEUR 1.00
RTP declared97.34%
RTP measured96.86% (approximate 95% CI 87.5–106.3)
Hit frequency31% · every 3.21
Dead streak max / avg24 / 3.18
Median hit0.80x
Max win (no bonus round)75.4x · run 1, round 8248
Free spins, natural136 · 6.8 bHz · every 147.1 spins · mean bonus round payout 58.0x stake
Balance start → end5,000 → 4,373
Balance in bets, all runs in sequence
Win distribution, x bet, all runs
test logs · 2 runs · every request loggedtest record ↓
  1. 012026-09-2710,000 rounds · 0 buysfiles & checksums ↓94.40%RTP4 files · SHA-256 ↓
  2. 022026-09-3010,000 rounds · 0 buysfiles & checksums ↓99.33%RTP4 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

Free spins on video

natural trigger · 136 in 20,000 spins
REC · NATURAL TRIGGER

A natural free spins feature at the client's default EUR 2.50 bet, three moons bringing down the wood house on the way to EUR 29.50. Recorded in a separate browser session, outside the statistical samples.

Across all 2 runs the 136 natural bonuses split into 25 under 20x, 55 between 20x and 50x, 33 between 50x and 100x and 23 at 100x or more, and together they made up 41% of everything the game returned. The wait between two triggers ran from 2 to 936 spins. Payout figures here cover the whole bonus round in ordinary stakes, the trigger spin included: its scatter pays and line wins count towards the bonus.

The feature opens with 10 free spins, and moons collected on the last reel extend it: three add 2 spins when the wood house falls, six add 2 more and a x2 multiplier when the brick house falls, and three Wolf Scatters during the feature add 10. Of the 68 natural features in run one, 48 ran past 10 spins because moons blew a house down and 11 were extended by a further 10 spins through Wolf Scatters; in run two 57 of 69 ran past 10 spins, 15 collected a Wolf retrigger, and round 5090 collected two for 34 spins.

  • triggers 136 1 per 147 spins
  • every 147 spins gaps 2 to 936
  • mean 58.0x bonus round median 37.9x stake
  • best 283.4x run 1 · round 6868
  • spins per bonus 14.3 10 to 34 observed
Trigger mapevery natural bonus of all runs in sequence · height = result, log scale · green = top 4
Best bonuses
  1. 01run 1 · round 686824 spins283.4x
  2. 02run 2 · round 509034 spins255.4x
  3. 03run 2 · round 943924 spins254.4x
  4. 04run 2 · round 920824 spins214.6x

Risk profile

how much bankroll the 2 runs in sequence needed
1,762xmax drawdown, in bets (run 2, by spin 4464)
-1,593xlowest point vs start
24longest dead streak, spins
Bankroll survival across the runs in sequence
50 betsbust at spin 1312
100 betsbust at spin 1466
200 betsbust at spin 2013

The runs are played back to back as one series, one bet size. A different session can bust earlier or never; treat this as a measured example, not a rule.

How it plays

11 rules screens from the game

Big Bad Wolf pays 25 fixed lines across a 5x3 grid, starting from the leftmost reel. Swooping Reels clear every winning symbol and drop new ones from above, adding each fresh win to the round until nothing more pays. The honeycomb Wild substitutes for every symbol apart from the Wolf Scatter and the Moon, and five of them on a line pay 40x the bet.

Pigs Turn Wild counts the wins inside one spin: the second win turns the first pig Wild, the fourth win the second pig and the sixth win the third. The game sheet notes that the feature stays active during free spins.

Any three or more Wolf Scatters pay 3x the bet and start 10 free spins, and a further three during the feature award 10 more. Moons that land on the last reel are collected: three blow down the wood house for 2 extra spins, six blow down the brick house for another 2 spins and a x2 multiplier on the wins that follow.

Quickspin's game sheet puts the 97.34% RTP at 66.38 points from the base game and 30.96 from free spins, rates volatility 4.24 out of 5 and lists 1,225x as the highest payout seen in one billion spins. The game has no bonus buy, and the demo accepts stakes between EUR 0.25 and EUR 100.

Mechanics6 from the rules screens
  • Cascading reels
  • Wild symbol
  • Scatter symbol
  • Free spins
  • Multiplier
  • Retrigger

Verdict

Two runs, forty-five brick houses

Two demo runs of Big Bad Wolf at EUR 1 stand at 94.40% and 99.33%, 96.86% pooled over 20,000 spins and 627.2 bets short of the declared 97.34%, and the game sheet's split has now been measured twice: the base game returned 64.64% and 64.32% of the stake against 66.38 on paper, free spins 29.76% and 35.01% against 30.96. Rounds of 100x or more came 23 times, one per 870 spins against the sheet's one in 1,043, nine in run one and fourteen in run two, and the two largest, 283.4x on round 6868 of run one and 255.4x on round 5090 of run two, both ran through the brick house, the second after twenty cascading wins in the trigger spin.

Across both runs the free spins came 136 times, 67 rounds with one double trigger in run one and 69 in run two, one per 147.1 spins or 6.8 bHz, and paid 57.96x the stake on average, 37.9x at the median, 40.7% of everything returned; 23 cleared 100x and 25 stayed under 20x. The brick house is the dividing line in both runs: the 21 and then 24 features that reached it averaged 73.57x and 100.51x and took 44.1% and 55.1% of the bonus money, the 27 and 33 that stopped at the wood house 49.41x and 44.68x, the 20 and 12 that blew nothing down 31.23x and 40.97x; Wolf Scatters extended 11 and then 15 features by 10 spins, and 105 of 136 ran past the opening ten.

Pigs Turn Wild shapes the base game the same way each time: rounds that reached a sixth win, 40 and then 35 of 10,000, took 17.1% and 16.1% of base-game money, single-win rounds 50.9% and 46.1%, and the largest base rounds paid 75.4x on round 8248 of run one and 51x on round 6336 of run two. Hits came on 31.36% and 31.01% of spins, the median 0.8x both times, the longest blank stretches were 19 and 24 spins, and the balance told two different stories: run one peaked 169.2 bets up on spin 730 and closed 560 down, run two never rose above its start until spin 9532, bottomed 1,033 bets down on spin 4464 and closed 67.2 down, the pooled low of 1,593 bets sitting there.

Measured upsides
  • Forty-five of 136 features reached the brick house, averaging 73.57x in run one and 100.51x in run two
  • Rounds of 100x or more came once per 870 spins across 20,000, against one in 1,043 on the game sheet
  • In its trigger spin round 5090 of run two chained twenty wins, then paid 255.4x with its 34-spin feature
  • A 99.33% second run, its free spins returning 35.01% of the stake against 30.96 on the sheet
Measured downsides
  • Twenty-five of 136 features paid under 20x, the least 4.2x on round 6522 of run two
  • Thirty-two features, 20 and then 12, blew down no house and averaged 31.23x and 40.97x
  • The longest waits for free spins were 889 spins in run one and 935 in run two
  • No base round passed 75.4x in 20,000 spins, and run two's best was 51x
Verdict by run · 2 runs · tap a run to read it
Run 01·2026-09-27·94.40% The 20 features that blew down no house averaged 31.23x, the 27 that stopped at the wood house 49.41x and the 21 that reached the brick house 73.57x, 44.1% of all bonus money.

The 20 features that blew down no house averaged 31.23x, the 27 that stopped at the wood house 49.41x and the 21 that reached the brick house 73.57x, 44.1% of all bonus money. The record feature took EUR 231.20 of its EUR 283.40 after the brick house fell at spin 15.

Sixty-seven rounds held free spins, one per 149.3 spins, and round 1142 triggered them twice, so the series had 68 features; per round they paid 52.30x the stake on average and 36.8x at the median. Rounds worth 100x or more turned up 9 times, once per 1,111 spins, against 1 in 1,043 on the game sheet.

Half of the base-game money, 50.9%, came from the 2,583 rounds that stopped after a single win; the 40 chains that ran to a sixth win, where the third pig turns Wild, brought 17.1%, EUR 1,108.40 of EUR 6,463.80.

On the game sheet's split, 64.64% of the stake came back outside free spins against 66.38 on paper and 29.76% from free spins against 30.96, 94.40% in all against the declared 97.34%.

Run 02·2026-09-30·99.33% Round 5090 strung twenty wins together in one spin, all three pigs Wild from the sixth and EUR 49 on the seventh, EUR 92.40 before the free spins began, and the 34-spin feature that followed, the brick house down and two Wolf retriggers, added 163x: 255.4x in all, the run's largest round.

Round 5090 strung twenty wins together in one spin, all three pigs Wild from the sixth and EUR 49 on the seventh, EUR 92.40 before the free spins began, and the 34-spin feature that followed, the brick house down and two Wolf retriggers, added 163x: 255.4x in all, the run's largest round. Round 9439 came within a bet of it at 254.4x, its 24 spins bringing the brick house down at spin 16 and paying EUR 126.80 on that very spin, 52.9% of its free spins money; rounds 9208 and 5759 followed at 214.6x and 191.2x, and fourteen rounds passed 100x, one per 714 spins against the game sheet's one in 1,043.

Sixty-nine features came one per 144.9 spins, 6.9 bHz, none of them doubled, and paid EUR 4,378.40 in all, 44.1% of the return, 63.46x on average and 42.6x at the median. The moons sorted the bonus money: 24 features reached the brick house and took 55.1% of it at 100.51x apiece, 33 stopped at the wood house for 33.7% at 44.68x, 12 blew nothing down for 11.2% at 40.97x, and the 202 spins played at x2 after a brick house fell paid 13.8% of the free spins money; Wolf Scatters added 10 spins to 15 features, 57 ran past the opening ten, 10 paid under 20x and round 6522 4.2x. The longest wait ran 935 spins after round 3429, and the first feature only arrived on round 314.

A 0.8x median hit came on 31.01% of spins, 6,899 spins paid nothing, and two blank stretches reached 20, the longer 24 from round 4214. Chains decided the base game: single-win rounds took 46.1% of its EUR 6,432, the 467 rounds that turned the first pig Wild 25.8%, the 85 that turned two 11.9% and the 35 that ran to a sixth win 16.1%, EUR 1,037.20 between them, with 51x on round 6336 the best round without a feature. The balance sat below its start for 9,531 spins, bottoming 1,033 bets down on spin 4464, before a feature on round 9532 put it 20.4 bets ahead, its peak, and it closed 67.2 bets short, 99.33% of the EUR 10,000 staked; in 2,000-spin slices it returned 74.1%, 84.6%, 133.4%, 88.5% and 116.0%, and split the game sheet's way the base game returned 64.32% of the stake, the sheet's figure being 66.38, and free spins 35.01% against 30.96.

Test record

2 runs · 20,000 rounds · 0 buys · open data · closed rig

This game has been through 2 separate test runs on the official demo server, each a fresh session of 10,000 rounds at a fixed bet. Every figure on this page combines the runs into one sample, as if they were one long session; the record below keeps each run apart, with its own numbers and its own downloadable log.

combined result · all runs2026-09-27 → 2026-09-30
Measured return 96.86% 95% band 87.5–106.3% · declared 97.34%
  • 20,000rounds, all runs
  • 31%rounds that paid
  • 283xbiggest round
  • 1 / 147natural bonus rate
  • 24longest dry streak
return by run, and combineddeclared 97.34%
Run 1 · 2026-09-2710,000 rounds
94.40%95% band 82.2–106.6%
Run 2 · 2026-09-3010,000 rounds
99.33%95% band 85.0–113.6%
All runs20,000 rounds combined
96.86%95% band 87.5–106.3%
75%85%95%105%115%declared 97.34%
dot = return of the run · whisker = approximate 95% band for that sample's mean · more rounds usually narrow a band, one very large round can widen it
how the return settled, round by round20,000 rounds
96.86% after 20,000 roundsdeclared 97.34%run 2 starts at round 10,001
line = return measured up to that round, all runs in sequence · dashed vertical = a new run starts · the line swings early and calms as rounds pile up
Each run on its own · tap a run to open it
01run Run 012026-09-27 lab note 10,000 rounds at EUR 1.00 · 0 buys · rig 0.8.2 · RTP profile 97.34% measured return94.40%-2.9 pts vs declared 95% band82.2–106.6% natural bonuses67 · 1 / 149 biggest round283x
95% band
82.2–106.6%
rounds that paid
31%
biggest round
283x · round 6,868
longest dry streak
19
natural bonuses
67 · one per 149 rounds
balance start → end
5,000 → 4,440
deepest drawdown
1,057x
lab note · 2026-09-28

Corrected 28 September 2026: round 1142 triggered free spins twice, and the rig had counted only the first feature's 10 spins, booking the second feature's money to the last of them. The round now shows 22 free spins, which lifts the average from 13.7 to 13.9 spins per round with a feature. Round wins, the RTP, the 67 trigger rounds and the free spins payout of every round are unchanged, and the published spin log keeps the count as first recorded.

Download this run · the square button copies the file’s SHA-256, so you can confirm the download is unchanged
02run Run 022026-09-30 lab note 10,000 rounds at EUR 1.00 · 0 buys · rig 0.8.7 · RTP profile 97.34% measured return99.33%+2.0 pts vs declared 95% band85.0–113.6% natural bonuses69 · 1 / 145 biggest round255x
95% band
85.0–113.6%
rounds that paid
31%
biggest round
255x · round 5,090
longest dry streak
24
natural bonuses
69 · one per 145 rounds
balance start → end
5,000 → 4,933
deepest drawdown
1,033x
lab note · 2026-09-30

Big Bad Wolf's 30 September run returned 99.33% after 94.40% on 27 September, 96.86% pooled from 20,000 spins at EUR 1 against the declared 97.34%. Features came 69 times against 67 rounds with free spins and averaged 63.46x against 52.30x, 24 of them reaching the brick house against 21; the largest round was 255.4x on round 5090 against 283.4x, and the balance was ahead on only 58 spins.

Download this run · the square button copies the file’s SHA-256, so you can confirm the download is unchanged

2 test runs combined into one sample (2026-09-27, 2026-09-30): 20000 ordinary paid rounds, including naturally triggered features, at a fixed EUR 1.0 bet on the official Quickspin demo server (jurisdiction MT, RTP profile 97.34%); every request and response logged.

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
Has the second run brought Big Bad Wolf to its 97.34%?
Lab answer

No. Pooling run two's 99.33% with run one's 94.40% gives 96.86% over 20,000 EUR 1 spins, 627.2 bets below the starting balance. The difference sat in the features: 44.1% of run two's return came from natural features against 37.1% of run one's, with 24 brick houses against 21.

Is one feature per 147 spins the Big Bad Wolf pace?
Lab answer

Yes, across 20,000 spins: 136 features, 6.8 bHz, with 67 rounds in run one, one of them a double trigger, and 69 in run two. The gaps ran from one spin, rounds 5024 and 5026 of run two, to 889 spins after round 2999 in run one and 935 after round 3429 in run two, while run two waited until round 314 for its first.

Does the brick house pay off as much the second time?
Lab answer

Yes, and more: the 24 features that reached it in run two averaged 100.51x with a 78.8x median and took 55.1% of the bonus money, against 73.57x and 44.1% for the 21 in run one. The 202 spins played at x2 after a brick house fell paid 13.8% of run two's free spins money, after 155 spins and 16.8% in run one.

Why is round 5090 the largest of run two?
Lab answer

Its trigger spin chained twenty wins, turning all three pigs Wild from the sixth and paying EUR 49 on the seventh, EUR 92.40 in all before the free spins; the feature then ran 34 spins, the brick house down and two Wolf retriggers, for 163x. The round closed at 255.4x, one bet ahead of round 9439's 254.4x.

Do Wolf Scatters often extend the feature?
Lab answer

No, not often: in 15 of run two's 69 features and 11 of run one's 68, each adding 10 spins; round 5090 collected two such retriggers for a 34-spin feature. Moons did more of the extending: 57 features in run two and 48 in run one ran past their opening 10 spins because a house fell.

Which is the biggest Big Bad Wolf win so far?
Lab answer

The 24-spin feature on round 6868 of run one, 283.4x, whose nineteenth spin paid EUR 218.80; run two's best was 255.4x on round 5090. The game sheet lists 1,225x as the highest payout seen in one billion spins, and 23 rounds of 20,000 passed 100x.

Does Big Bad Wolf offer a Buy Feature?
Lab answer

No: there is no Buy Feature, and every one of the 136 features across both runs came from three Wolf Scatters, which also pay 3x the bet on landing. The spins between features are turnover, not a price: 147 of them on average, EUR 147 at this stake.

Comments and reviews

Leave a comment or your own test of this slot
Slotester Labmeasured run · every request logged measured
  • spins20,000
  • bet1.00
  • result-627x
  • RTP measured96.9%
  • bonuses136
  • max win, no bonus75.4x

Leave a comment or a test

Tell what the slot did in your session. Numbers are welcome; casino links are removed.