Thunderkick · measured RTP 97.2% · tested 2026-11-07
Esqueleto Explosivo 3
Ten of 109 Esqueleto Explosivo 3 free spins rounds climbed the Mucho ladder to x32–x1024 and, in a three-run demo of 30,000 rounds measured at 97.15% RTP, paid 42.9% of bonus money.
In numbers: the lab's RTP test on the official demo server measured 97.2% against 94.22% declared over 30,000 logged rounds in 3 runs; 28.3% of rounds paid; a natural bonus landed once per 275 rounds (109 in total) and a bonus round paid a median 41.9x the stake, mean 72.9x, trigger spin included; 150 bonus buys at 75x returned 1.15x of their price on average, 69% of them below the price; the biggest round paid 726.2x; the longest dry run was 28 spins.
Esqueleto Explosivo 3 demo
United States·available at Cafe Casino
Same reels, real payouts
Cafe Casino runs the same Esqueleto Explosivo 3 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
30,000 spins · EUR 1.00 bet · every request logged
| Spins | 30,000 · 3 runs |
| Bet | EUR 1.00 |
| RTP declared | 94.22% |
| RTP measured | 97.15% (approximate 95% CI 87.6–106.7) |
| Hit frequency | 28% · every 3.53 |
| Dead streak max / avg | 28 / 3.52 |
| Median hit | 1.10x |
| Max win (no bonus round) | 101.5x · run 3, round 5350 |
| Free spins, natural | 109 · 3.6 bHz · every 275.2 spins · mean bonus round payout 72.9x stake |
| Balance start → end | 5,000 → 4,144 |
- 012026-11-0710,000 rounds · 50 buysfiles & checksums ↓109.32%RTP5 files · SHA-256 ↓
- 022026-11-0710,000 rounds · 50 buysfiles & checksums ↓92.01%RTP5 files · SHA-256 ↓
- 032026-11-0710,000 rounds · 50 buysfiles & checksums ↓90.12%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
150 buys × 75x · EUR 75 each
mean 1.15x · median 0.503× price (EUR 37.75) · 104 of 150 below price · best 9.90x · worst 0.01x
| Spins per bonus (avg / min–max) | 13.4 / 10–26 |
| Retriggered | 95% |
| Bonuses that paid nothing | 0% |
Spins are added after the opening award in two ways: each third new Explosivo Wild lifts the Mucho ladder a level and grants one spin, and two, three or four Scatters during the feature add 3, 5 or 7. Over 150 purchases level-ups extended 142 and Scatters 30, every Scatter award worth 3 spins, so 143 of the 150 played longer than they started.
- Spent
- EUR 11,250150 × EUR 75
- Returned
- EUR 12,952.50115.13% · approximate 95% CI 88–142%
- Net
- +EUR 1,702.50+22.7 buys
- Break-even or better
- 46 / 15031%
- Paid 2× price or more
- 23 / 15015%
- Price in base spins
- 75natural trigger every ~275 spins
One ticket equals 75 ordinary stakes. Natural bonuses occurred once per 275 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 the 3 runs in sequence needed
| 50 bets | bust at spin 20677 |
| 100 bets | bust at spin 21015 |
| 200 bets | bust at spin 22132 |
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
7 rules screens from the game
Five columns of five sugar skulls pay in clusters, groups of five or more of one symbol linked through shared edges anywhere on the board, and several clusters, even of the same symbol, can pay on one screen. Prices are printed in cash at the chosen bet, so at EUR 1.00 a Catrina skull cluster pays EUR 2.50 for seven and EUR 150.00 for fifteen or more, and the pink skull with a rose EUR 1.00 and EUR 50.00. Winning symbols vanish, every cluster area receives a Wild or an Explosivo Wild, and the Avalanche refills the board.
An Explosivo Wild, whether it lands by itself or is placed in a cluster area, blows up the 3x3 block around it and clears everything there except the Catrina skull, Wilds and Scatters. Each Avalanche doubles the Mucho Multiplier below the board, from x1 up to x32, the base-game ceiling, and every new paid spin opens on x1 again.
Bonus Game entry takes three Scatters for 10 free spins or four for 12, two more for each further Scatter, while inside the feature two Scatters add 3 spins, three add 5 and four add 7. Base-game multipliers are cleared on entry. During free spins every third new Explosivo Wild shifts the whole ladder up one level and adds a spin, so after five level-ups it runs from x32 to x1024, the Bonus Game maximum.
At EUR 1.00 the Bonus Game costs EUR 75.00, 75x the bet, with a theoretical return of 94.40% against 94.22% for ordinary play. Bets in the menu span EUR 0.10 to EUR 100.00 a spin, the payout ceiling is 7,500x the bet per round, and Thunderkick's own game list marks the volatility high. BET+, the toggle next to the spin control, stayed off for every logged round.
Cluster pays
Cascading reels
Wild symbol
Multiplier
Scatter symbol
Free spins
Retrigger
Bonus buy
Gallery
10 frames from the demo session
Verdict
Ten ladder climbs to x32–x1024
Fewer natural bonuses came in each run, 44, 35 and 30, while the best of them grew from 477.2x to 685.5x and 726.2x, and the return fell from 109.32% to 92.01% and 90.12%. Pooled at EUR 1.00, the 30,000 ordinary rounds come to 97.15% against the 94.22% Thunderkick declares, one bonus per 275.2 rounds.
Five, two and three natural bonuses per run climbed all five Mucho levels to x32–x1024, and that group kept between 40.1% and 45.1% of each run's bonus money, 42.9% of EUR 7,942.10 pooled. Run one's five were also its five largest rounds; in the later runs full climbs held only the top two places, and round 6921 of run three ended at 85.3x. No win of run one was multiplied beyond x256; round 4367 of run two paid EUR 512.00 at x512, the only such win in 259 bonuses, and x1024 has yet to meet a paying cluster.
Purchases paid more than they cost in every run, fifty EUR 75.00 tickets returning 128.94%, 110.58% and 105.87%, or 115.13% over 150 tickets. How much rested on the best ticket changed by run: without run one's ticket 39, EUR 742.20, the other 49 still made 111.38%, while without ticket 23 of run two, EUR 500.70, and ticket 28 of run three, EUR 519.30, the rest fell to 99.22% and 93.90%.
- Fifteen of the 150 purchases climbed to the x32–x1024 ladder and averaged 4.71x the EUR 75.00 price
- 726.2x from 15 free spins in round 9352 of run three, the top result of 30,000 ordinary rounds
- EUR 100.00 at x4 took base round 5350 of run three to 101.5x without any feature
- With two or more level-ups, 86 of 109 natural bonuses averaged 88.9x the stake
- Ladders that stopped at x4–x128 or lower left 59 of 109 natural bonuses at a 24.5x average
- 44 purchases ended with the ladder at x2–x64 or lower and averaged 0.158x their EUR 75.00 price
- Free spins went missing for 1,513 rounds of run three, from round 2591 to round 4105
- Only 18 of 29,891 rounds without a feature applied the x32 base step to a win
Run 01·2026-11-07·109.32%
The five largest of the 10,000 rounds, 3895, 4507, 6438, 1108 and 1372, were also the only natural bonuses that moved the Mucho ladder five times, to x32 through x1024. Together they paid EUR 1,519.30, 43.3% of what the 44 natural bonus rounds returned, and none of them finished under 168.8x the stake. The other 39 averaged 50.97x with a median of 39.5x, round 9597 the best of them at 154.6x.
Round 3895 reached 477.2x over 18 free spins, and its 17th spin alone paid EUR 211.20. EUR 76.80 of that round was won at x256, the highest multiplier applied to any win across the 44 natural bonuses and the 50 purchases; the x1024 step stood on the ladder in twelve bonuses and never met a winning cluster.
Wins in the 9,956 rounds without a feature came to EUR 7,424.70, 74.25% of the EUR 10,000 staked, and 22.6% of that money arrived at x8 or higher on the base ladder. Round 3979, the best of them at 75.4x, ran nine cascade steps and took EUR 60.80 of its pay at x32, one of eight such rounds to apply the top base step to a win.
Seven of the fifty EUR 75.00 purchases also reached the top ladder, and they paid EUR 2,789.30, 57.7% of the EUR 4,835.40 that all the buys returned. Ticket 39 led them at EUR 742.20 from 21 spins, while ticket 5 trailed the whole set at EUR 0.70.
Run 02·2026-11-07·92.01%
Round 4367 saved its money for the fifteenth and last free spin, which paid EUR 608.00, EUR 512.00 of it at x512 after five level-ups had moved the Mucho ladder to x32–x1024. That bonus came to 685.5x, and round 4519, the only other natural bonus to climb all five levels, followed at 242.6x; the pair took 40.1% of the EUR 2,312.80 that 35 natural bonuses paid.
Bonuses landed once per 285.7 rounds on average, but none between rounds 4811 and 6239, and the bonus that ended that 1,427-round wait paid 195.0x with its ladder stopped at x8–x256. Rounds without a feature returned EUR 6,888.00 on the EUR 10,000 staked, and the ordinary series finished at 92.01%, 799.2 stakes below its starting balance.
Ticket 23 led the fifty EUR 75.00 purchases at EUR 500.70 without reaching the top ladder, EUR 384.00 of it won at x16. Tickets 18 and 34 were the only buys to climb to x32–x1024, paying EUR 489.60 and EUR 442.90, and the set returned 110.58% of cost.
Run 03·2026-11-07·90.12%
Ticket 28 opened on 12 spins and ran to 26, five level-ups and three Scatter awards included, for EUR 519.30, the best of fifty EUR 75.00 purchases that together returned 105.87% of cost. Ticket 19 came next at EUR 424.90, EUR 400.00 of it paid at x16 on a ladder that never passed x8–x256.
Only 30 natural bonuses came in 10,000 rounds, one per 333.3, and rounds 2591 to 4105 went 1,513 spins without one before rounds 4105 and 4106 triggered back to back for 45.0x and 101.7x. Three bonuses climbed all five ladder levels and earned 45.1% of the EUR 2,122.20 that natural bonuses paid, though round 6921, one of the three, stopped at 85.3x.
By round 9325 the balance sat 1,756.2 stakes under its high, and 27 rounds later round 9352 paid 726.2x from 15 free spins, EUR 393.60 on the 14th alone; no win in it was multiplied by more than x128, which still accounted for EUR 486.40. Ordinary play closed at 90.12%, and round 5350 led the rounds without a feature at 101.5x, EUR 100.00 of it at x4.
Test record
3 runs · 30,000 rounds · 150 buys · open data · closed rig
This game has been through 3 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.
- 30,000rounds, all runs
- 28%rounds that paid
- 726xbiggest round
- 1 / 275natural bonus rate
- 1.15xmean of 150 buys
- 28longest dry streak
01run Run 012026-11-07 measured return109.32%+15.1 pts vs declared
- 95% band
- 92.3–126.4%
- rounds that paid
- 29%
- biggest round
- 477x · round 3,895
- longest dry streak
- 28
- natural bonuses
- 44 · one per 227 rounds
- bonus buys
- mean 1.29x · median 0.503x · 72% below price
- balance start → end
- 5,000 → 5,932
- deepest drawdown
- 671x
02run Run 022026-11-07 lab note measured return92.01%-2.2 pts vs declared
- 95% band
- 75.7–108.4%
- rounds that paid
- 29%
- biggest round
- 686x · round 4,367
- longest dry streak
- 24
- natural bonuses
- 35 · one per 286 rounds
- bonus buys
- mean 1.11x · median 0.484x · 68% below price
- balance start → end
- 5,000 → 4,201
- deepest drawdown
- 1,118x
A win was multiplied at x512 for the first time and the top bonus rose from 477.2x to 685.5x, yet ordinary RTP fell from 109.32% to 92.01% with natural bonuses down from 44 to 35 and full ladder climbs from five to two. Purchases slipped from 128.94% to 110.58% of cost.
03run Run 032026-11-07 lab note measured return90.12%-4.1 pts vs declared
- 95% band
- 73.8–106.4%
- rounds that paid
- 28%
- biggest round
- 726x · round 9,352
- longest dry streak
- 28
- natural bonuses
- 30 · one per 333 rounds
- bonus buys
- mean 1.06x · median 0.59x · 68% below price
- balance start → end
- 5,000 → 4,012
- deepest drawdown
- 1,756x
No win of run three was multiplied beyond x128, after run two's x512, even though its top bonus, 726.2x, beat run two's 685.5x. Natural bonuses fell from 35 to 30, ordinary RTP from 92.01% to 90.12% and purchases from 110.58% to 105.87% of cost.
3 test runs combined into one sample (2026-11-07, 2026-11-07, 2026-11-07): 30,000 ordinary rounds, including naturally triggered features, at a fixed EUR 1 bet; 150 bonus buys at EUR 75 each (75x); recorded on the official Thunderkick demo server (jurisdiction DOTCOM, RTP profile 94.22%); 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 →
FAQ
5 questions · answered from the log
What made run one of Esqueleto Explosivo 3 return 109.32% and the next two close to 90%?
Bonus rounds made most of the gap. Run one's 44 bonuses were worth 35.07 RTP points, against 23.13 and 21.22 in runs two and three, while rounds without a feature gave 74.25, 68.88 and 68.89 points.
Can the top Mucho step of x1024 multiply a win in free spins?
No. x1024 sat on the ladder in 25 of the 259 bonuses played across three runs, 109 natural and 150 bought, and never met a paying cluster. The highest multiplier any win received was x512, once, on round 4367's final spin in run two, and all 631 level-ups in the series fired on a third collected Explosivo Wild.
Would a EUR 75 Bonus Game purchase have paid for itself in these runs?
Yes. Per run the fifty tickets returned 128.94%, 110.58% and 105.87% of their EUR 3,750 cost, EUR 12,952.50 on EUR 11,250 over all 150, against the 94.40% Thunderkick lists for the buy. The median ticket paid EUR 37.75, about half the price.
Can one Esqueleto Explosivo 3 bonus run past 20 free spins?
Yes. Four natural bonuses went past 20 spins, and round 1372 of run one and round 5076 of run three both reached 23 with five level-ups and eight Scatter spins. Three Scatters award 10 spins and four award 12, each level-up adds one, and two or three Scatters landing during free spins add 3 or 5; 105 of 109 natural bonuses got past their opening award, and ticket 28 of run three played the most, 26.
Was BET+ switched on while Esqueleto Explosivo 3 was tested?
No. The toggle stayed off for all 30,000 ordinary rounds and 150 purchases across the three runs, each ordinary round was staked at EUR 1.00, and the series holds no figures for the BET+ mode.
Comments and reviews
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- spins30,000
- bet1.00
- result-856x
- RTP measured97.2%
- bonuses109
- max win, no bonus101.5x
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