Pragmatic Play · 2022 · measured RTP 95.9% · tested 2026-09-23
Zombie Carnival
Once a bear Wild reached x4, Zombie Carnival free spins averaged 126.4 bets, against 11.5 bets where neither Wild left x1; the RTP of its 10,000 demo rounds came to 95.9% against 96.5%.
In numbers: the lab's RTP test on the official demo server measured 95.9% against 96.5% declared over 10,000 logged rounds; 26.0% of rounds paid; a natural bonus landed once per 179 rounds (56 in total) and a bonus round paid a median 35.6x the stake, mean 74.3x, trigger spin included; 50 bonus buys at 80x returned 0.69x of their price on average, 78% of them below the price; the biggest round paid 428.8x; the longest dry run was 24 spins.
Zombie Carnival demo
United States·available at Cafe Casino
Same reels, real payouts
Cafe Casino runs the same Zombie Carnival with the same math and adds a welcome bonus for players from the United States:
300% up to $2,000 + 150 FS 18+ · T&Cs apply · the demo stays free
Test card
10,000 spins · USD 2.00 bet · every request logged
| Spins | 10,000 |
| Bet | USD 2.00 |
| RTP declared | 96.50% |
| RTP measured | 95.90% (approximate 95% CI 77.3–114.5) |
| Hit frequency | 26% · every 3.85 |
| Dead streak max / avg | 24 / 3.86 |
| Median hit | 0.80x |
| Max win (no bonus round) | 180.0x · round 6344 |
| Free spins, natural | 56 · 5.6 bHz · every 178.6 spins · mean bonus round payout 74.3x stake |
| Balance start → end | 100,000 → 99,181 |
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 × 80x · USD 160 each
mean 0.69x · median 0.398× price (USD 63.60) · 39 of 50 below price · best 5.98x · worst 0.00x
| Spins per bonus (avg / min–max) | 8.8 / 6–14 |
| Retriggered | 94% |
| Bonuses that paid nothing | 0% |
Every Scatter that lands inside the feature adds one free spin, so extra spins are counted per Scatter: 193 across the 56 natural features, 49 of which ran past the six-spin opening, and 47 of the 50 purchases did the same.
- Spent
- USD 8,00050 × USD 160
- Returned
- USD 5,546.8069.34% · approximate 95% CI 43–95%
- Net
- −USD 2,453.20−15.3 buys
- Break-even or better
- 11 / 5022%
- Paid 2× price or more
- 3 / 506%
- Price in base spins
- 80natural trigger every ~179 spins
One ticket equals 80 ordinary stakes. Natural bonuses occurred once per 179 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
| 50 bets | bust at spin 509 |
| 100 bets | bust at spin 783 |
| 200 bets | bust at spin 972 |
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
Zombie Carnival runs six reels of four rows with 4,096 ways to win: three or more of a kind pay once they sit on neighbouring reels counted from the left, once for every way they form, and diagonal or gapped positions count for nothing. At USD 2 the zombie clown is the top symbol, USD 2.00 for three and USD 10.00 for a full six-reel way, ahead of the ringmaster at USD 6.00, the blue ogre at USD 4.00 and the helmeted zombie at USD 3.00; the four royals pay USD 0.40 to USD 1.40. A gift-box Mystery symbol turns into one random paying symbol at the end of the spin, in ordinary play and in the feature alike.
The brain Scatter appears only on reels two to five, and two of them anywhere start 6 free spins. The Scatters that opened the round become bear Wilds and stay on the reels for the whole feature; every Scatter that lands afterwards is consumed by the nearest Wild, which walks over to it and raises its multiplier by 1x, and if more Scatters land than there are Wilds, the spare Scatters become new Wilds. A Wild multiplies every way it completes, two Wilds in one way multiply each other, and each Scatter also adds one free spin.
Buying the feature costs 80x the stake, USD 160 at USD 2, and the opening spin of a bought round can hold two, three or four Scatters; all fifty purchases and all 56 natural features of this first run opened with exactly two Wilds. There is no Ante option.
Ordinary play and the purchase share one printed figure, 96.50%; volatility is marked high, and a 5,000x ceiling closes any feature that reaches it. The demo accepts bets between USD 0.20 and USD 240.
Wild symbol
Scatter symbol
Free spins
Retrigger
Multiplier
Sticky symbol
Bonus buy
Bet range USD 0.20 – 240 per spin · payouts read from the game's paytable at bet USD 2.00
Gallery
11 frames from the demo session
Verdict
Two bears, one of them at x4
Across 10,000 ordinary spins the demo returned 95.90% of stake against the 96.50% in the rules, the approximate 95% band spans 77.3–114.5%, and the balance finished 410 bets down after touching 1,068.8 bets below the start. Fifty-six natural features arrived one per 179 spins, 5.6 bHz, and paid 43.4% of everything the series returned; strip out the best of them, round 7359 at 428.8 bets, and 9,999 rounds are left at 91.63%. Ordinary play itself is thin: no tumbles, 25.96% of spins paying, and only two rounds past 100 bets, both single spins of stacked clowns.
Buying was worse. Fifty tickets at USD 160 returned 0.693x their price, 39 of them below price, median 0.3975x or USD 63.60, best ticket 5.98x; 47 tickets earned at least one extra spin, but the 33 that finished at nine spins or fewer averaged 0.33x, while the 17 that reached ten averaged 1.40x.
The mechanism this log isolates is the Wild multiplier, nothing else. Every round starts with two bear Wilds at x1; in the seven natural features where neither Wild grew, the round averaged 11.5 bets, and in the 25 where a Wild reached x4 or more the free spins alone averaged 126.4 bets. Round 7359 is the whole mechanism in one place: six spins of small change, Scatters on spins five to eight that walked the Wilds up to x3 and x4, and spins seven, eight and nine that paid USD 99.60, USD 256.00 and USD 481.20, 97.6% of the round; USD 288 of the last came from four ways that ran through both the x3 and the x4 Wild.
- One natural feature per 179 spins on average, 5.6 bHz, and 49 of the 56 extended by at least one Scatter
- Wild multipliers stack fast: 25 features reached x4 or more and averaged 126.4 bets in free spins
- Round 7359 paid 428.8 bets, with USD 481.20 on one spin from x3 and x4 Wilds in the same way
- The 80x price is the lowest in the lab's Pragmatic set, USD 160 at the USD 2 stake
- The 80x tickets returned 0.693x their price across 50 tries, 39 of them losing
- Seven natural features never lifted a Wild past x1 and averaged 11.5 bets
- Ordinary play has no tumbles and paid only two rounds above 100 bets in 10,000
- The balance sat 1,068.8 bets under the start at its lowest, on round 6162
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.
- 10,000rounds logged
- 26%rounds that paid
- 429xbiggest round
- 1 / 179natural bonus rate
- 0.69xmean of 50 buys
- 24longest dry streak
01run Run 012026-09-23 measured return95.90%-0.6 pts vs declared
- 95% band
- 77.3–114.5%
- rounds that paid
- 26%
- biggest round
- 429x · round 7,359
- longest dry streak
- 24
- natural bonuses
- 56 · one per 179 rounds
- bonus buys
- mean 0.69x · median 0.398x · 78% below price
- balance start → end
- 100,000 → 99,181
- deepest drawdown
- 1,232x
10000 ordinary paid rounds, including naturally triggered features, at a fixed USD 2.0 bet; 50 bonus buys at 160.0 each (80.0x) on the official Pragmatic Play demo server (jurisdiction 99, RTP profile 96.5%); every request and response logged; test run 2026-09-23.
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 →
FAQ
6 questions · answered from the log
What did 10,000 demo spins of Zombie Carnival return?
95.90% of stake against the 96.50% printed for ordinary play and the purchase, with the balance 410 bets down at the end after a low 1,068.8 bets under the start. Natural features paid 43.4% of everything the series returned.
Why do the roaming Wilds grow, and how do their multipliers combine?
The two Scatters that start the round become Wilds at x1, and each later Scatter is eaten by the nearest Wild, which gains 1x and adds one free spin. Two Wilds in the same way multiply each other: on spin nine of round 7359 a x3 and a x4 Wild shared a way and the spin paid USD 481.20, 240 bets.
At 80x, did the USD 160 tickets come back?
No: 50 tickets returned 0.693x their price, 39 finished below USD 160, and the median ticket paid USD 63.60. The 17 tickets that reached ten spins or more averaged 1.40x, the 33 that stopped at nine or fewer averaged 0.33x, and the best ticket, number 19, paid USD 956.80.
On average, how many spins separated two natural features?
Fifty-six features in 10,000 rounds, one per 179 on average, which is 5.6 bHz; the longest wait was 472 rounds between rounds 3571 and 4044. The median feature paid 35.6 bets and the mean 74.3, and 13 of the 56 passed 100 bets.
What made some free spins rounds pay almost nothing?
Because no Scatter landed to grow the Wilds: seven of the 56 natural features ended with both Wilds still at x1, and those seven averaged 11.5 bets. The smallest feature of the run, round 8715, paid 4.0 bets across seven spins.
Biggest win outside the feature?
180 bets in round 6344, USD 360 on a single spin: thirteen clowns spread over all six reels formed 36 six-of-a-kind ways at USD 10.00 each. The only other ordinary round above 100 bets was 5524 at 108 bets, and ordinary play has no tumbles to build on a hit.
Comments and reviews
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- spins10,000
- bet2.00
- result-410x
- RTP measured95.9%
- bonuses56
- max win, no bonus180.0x
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