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Big Bass Splash — Slotester Lab test cover
20,000 SPINS 2 RUNS 100 BUYS DEMO SERVER

Pragmatic Play · 2022 · tested 2026-09-29

Big Bass Splash

Collected fish supplied 92.1% of the money paid by purchased free spins in the first Big Bass Splash demo run, where the median bonus buy returned USD 57.90.

In numbers: measured RTP 90.2% against 96.71% declared over 20,000 logged rounds in 2 runs; 13.7% of rounds paid; a natural bonus landed once per 118 rounds (170 in total) and a bonus round paid a median 39x the stake, mean 66.7x, trigger spin included; 100 bonus buys at 100x returned 0.64x of their price on average, 78% of them below the price; the biggest round paid 522.6x; the longest dry run was 56 spins.

Test card

20,000 spins · USD 2.00 bet · every request logged
Spins20,000 · 2 runs
BetUSD 2.00
RTP declared96.71%
RTP measured90.18% (approximate 95% CI 77.0–103.3)
Hit frequency14% · every 7.3
Dead streak max / avg56 / 7.34
Median hit1.00x
Max win (no bonus round)200.5x · run 2, round 5798
Free spins, natural170 · 8.5 bHz · every 117.6 spins · mean bonus round payout 66.7x stake
Balance start → end100,000 → 96,070
Balance in bets, all runs in sequence
Win distribution, x bet, all runs
test logs · 2 runs · every request loggedtest record ↓
  1. 012026-09-1010,000 rounds · 50 buysfiles & checksums ↓83.14%RTP5 files · SHA-256 ↓
  2. 022026-09-2910,000 rounds · 50 buysfiles & checksums ↓97.21%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

Play Big Bass Splash demo

PRAGMATIC PLAY · official demo · same math as real play
Best offer for players from United States Big Bass Splash available at Cafe Casino
Play for real money
Big Bass Splash: three money fish stacked on reel four of the starting screen, valued USD 4.00, USD 30.00 and USD 40.00 at a USD 2.00 bet
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

Bonus buy lab

100 buys × 100x · USD 200 each
Results, x price (amber = below price)
  1. buy 010.44x
  2. buy 020.17x
  3. buy 030.16x
  4. buy 040.57x
  5. buy 050.13x
  6. buy 060.56x
  7. buy 070.02x
  8. buy 080.09x
  9. buy 091.61x
  10. buy 100.09x
  11. buy 112.81x
  12. buy 120.07x
  13. buy 130.55x
  14. buy 141.12x
  15. buy 150.29x
  16. buy 160.36x
  17. buy 170.57x
  18. buy 180.20x
  19. buy 190.24x
  20. buy 200.16x
  21. buy 210.62x
  22. buy 220.42x
  23. buy 230.02x
  24. buy 240.29x
  25. buy 250.15x
  26. buy 260.09x
  27. buy 270.48x
  28. buy 280.24x
  29. buy 291.13x
  30. buy 300.13x
  31. buy 311.28x
  32. buy 320.97x
  33. buy 331.31x
  34. buy 340.45x
  35. buy 350.29x
  36. buy 360.02x
  37. buy 370.22x
  38. buy 380.24x
  39. buy 390.88x
  40. buy 401.08x
  41. buy 410.83x
  42. buy 420.22x
  43. buy 430.21x
  44. buy 441.27x
  45. buy 450.21x
  46. buy 460.21x
  47. buy 470.14x
  48. buy 480.07x
  49. buy 495.50x
  50. buy 500.42x
  51. buy 510.02x
  52. buy 520.31x
  53. buy 530.36x
  54. buy 540.39x
  55. buy 551.95x
  56. buy 560.66x
  57. buy 571.10x
  58. buy 580.19x
  59. buy 590.42x
  60. buy 602.44x
  61. buy 610.05x
  62. buy 620.23x
  63. buy 630.40x
  64. buy 640.32x
  65. buy 651.45x
  66. buy 660.46x
  67. buy 670.35x
  68. buy 680.09x
  69. buy 690.20x
  70. buy 700.17x
  71. buy 710.12x
  72. buy 720.02x
  73. buy 731.82x
  74. buy 741.65x
  75. buy 750.20x
  76. buy 760.49x
  77. buy 770.32x
  78. buy 781.81x
  79. buy 790.41x
  80. buy 800.32x
  81. buy 810.43x
  82. buy 820.35x
  83. buy 832.72x
  84. buy 840.11x
  85. buy 850.35x
  86. buy 860.16x
  87. buy 870.37x
  88. buy 881.35x
  89. buy 891.28x
  90. buy 900.90x
  91. buy 910.52x
  92. buy 921.35x
  93. buy 930.13x
  94. buy 941.32x
  95. buy 950.35x
  96. buy 960.08x
  97. buy 970.29x
  98. buy 982.52x
  99. buy 990.61x
  100. buy 1000.48x

mean 0.64x · median 0.356× price (USD 71.20) · 78 of 100 below price · best 5.50x · worst 0.02x

Free spins anatomy · 100 purchases
Spins per bonus (avg / min–max)13.5 / 10–30
Retriggered22%
Money-symbol collects, avg win120.74
Bonuses that paid nothing0%

Extensions come from collecting groups of four fishermen: ten extra spins, or twelve with the extra-spins modifier. Initial scatter awards and the opening two-spin modifier are excluded; nine of 50 purchases extended after entry.

With the extra-fish modifier active, ten bought free spins at a USD 2 stake land one fisherman on the collection bar, and the USD 200 purchase closes at USD 84. · Recorded in a separate browser session, outside the statistical samples.
Buy ledger
Spent
USD 20,000100 × USD 200
Returned
USD 12,808.4064.04% · approximate 95% CI 49–80%
Net
−USD 7,191.60−36.0 buys
Break-even or better
22 / 10022%
Paid 2× price or more
5 / 1005%
Price in base spins
100natural trigger every ~118 spins

One ticket equals 100 ordinary stakes. Natural bonuses occurred once per 118 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 2 runs in sequence needed
3,116xmax drawdown, in bets (run 1, by spin 9284)
-2,243xlowest point vs start
56longest dead streak, spins
Bankroll survival across the runs in sequence
50 betsbust at spin 71
100 betsbust at spin 4851
200 betsbust at spin 5054

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

Big Bass Splash uses five reels, three rows and ten fixed paylines, with a line connecting matching symbols from the left edge. Most symbols need three matches; the truck also pays for two. At the USD 2 stake shown in the rule captures, five trucks on one line pay USD 400 before any separate money collection. Fish have two jobs: they complete ordinary paying lines, and their displayed cash values can be collected during free spins.

The fisherman is the wild and can appear on any reel during the feature, substituting for paying symbols and collecting the values of all fish visible on that screen; several fishermen collect the same fish. Fish values range from 2x to 5,000x the spin stake, while the complete round is subject to the game's win cap. Three scatters start ten free spins, four start fifteen and five start twenty. Two scatters in ordinary play can sometimes receive help, a downward nudge with a respin or a hook pulling a reel upward, but two scatters alone do not guarantee a feature.

Before free spins begin, the game randomly assigns between zero and five modifiers. They can put more fish or more fishermen on the feature reels, increase the chance of dynamite, hook and bazooka events, begin at collection level two, or add two spins. The extra-spins modifier adds two to the starting award and to every later retrigger. These are automatic selections with no player choice.

Each group of four fishermen advances the feature and adds ten spins, or twelve with the extra-spins modifier. Money collections use 2x at level two, 3x at level three and 10x at level four, and the new batch waits until the current one finishes before its multiplier applies. Starting at level two therefore changes the progression available from the outset. When fishermen appear without fish, dynamite can add fish or a bazooka can redraw the other symbols; with fish but no fisherman, a hook can pull a reel upward to bring one into view.

Direct bonus access is priced at 100x the spin stake, and its trigger can show anywhere from three to five scatters. The statistical sample used the USD 200 purchase with a USD 2 spin stake. Captured help lists USD 0.10–250 as the stake range, 96.71% theoretical RTP for both access routes, and medium volatility. A 5,000x total award stops the round even if free spins remain; the largest statistical result here was well below that limit.

Mechanics7 from the rules screens
  • Free spins
  • Wild symbol
  • Scatter symbol
  • Retrigger
  • Multiplier
  • Respin
  • Bonus buy
Paytable
x total bet · bar = top payout on a log scale
symbol 2345+
Truck 0.5x 5x 20x 200x
Fishing rod — 3x 15x 100x
Dragonfly — 2x 10x 50x
Tackle box — 2x 10x 50x
Fish — 1x 5x 20x
A — 0.2x 2.5x 10x
K — 0.2x 2.5x 10x
Q — 0.2x 1x 5x
J — 0.2x 1x 5x
10 — 0.2x 1x 5x

Bet range USD 0.10 – 250 per spin · payouts read from the game's paytable at bet USD 2.00

Verdict

Retriggered features paid the second run

Retriggers separated the two runs of Big Bass Splash: 16 of 84 natural features extended their spins in the first, 28 of 86 in the second, and the feature average moved from 59.90x to 73.40x, with 22 rounds above 100x in the second run against 14 in the first. The pooled 20,000 rounds returned 90.18% from 83.14% and 97.21% in the two sessions, so the printed 96.71% sits inside the approximate 95% band of 77.04 to 103.31% while the combined balance closed 1,965 stakes down. Between features the reels did not change: a hit on 14.08% and 13.3% of spins at a 1.0x median, 8,592 and 8,670 blank rounds, and empty runs of 51 and 56 spins at the longest.

Bonus rounds paid 62.9% of everything the 20,000 ordinary rounds returned: 170 features at one per 118 spins, 8.5 bHz, the lab's count of natural features per thousand rounds, 66.73x on average and 38.95x at the median, none of them empty and the smallest 2x. Two of them ran forty spins, round 9546 of run one for 269.6x and round 4497 of run two for 522.6x, the largest round on the page; without round 4497 the other 19,999 rounds returned 87.57%. The waits stretched past 600 spins three times, 955 spins from round 8490 to 9446 of run two at the longest, and the deepest fall, 3,116.3 stakes from a peak, belongs to run one at spin 9284.

One hundred USD 200 tickets came back at 0.640x of price, 64.04%: 0.356x at the median, USD 71.20, 78 tickets below their price, 22 above it and one, purchase 49 of run one, at USD 1,100, the only ticket past 5x. Bought rounds retriggered 22 times in 100 and ran 13.5 spins on average against 13.8 for the natural rounds, so the ticket opens the same feature the reels give, at 100 stakes a time. The fisherman feature arrives here once per 118 spins on average, and a 200-stake bankroll ran out by spin 5054 in one run and spin 399 in the other; the purchase route lost money on four tickets in five in both runs.

Measured upsides
  • Bonus rounds paid 62.9% of the pooled return, with 35 of 170 natural features above 100x
  • Retriggers came in 44 of 170 natural features; the two forty-spin rounds paid 269.6x and 522.6x
  • No natural feature in 170 paid nothing, and the smallest returned 2x the stake
  • The base-game rhythm held across the runs: a hit every 7.1 and 7.5 spins at a 1.0x median
Measured downsides
  • Four bought tickets in five lost money in both runs, and only purchase 49 of run one reached 5x
  • Empty runs of at least twenty spins occurred 134 times in 20,000 rounds, the longest 56
  • Only one scatter-free spin in 20,000 passed 100x, the 200.5x hit on round 5798 of run two
  • The wait for a feature passed 600 spins three times, 955 spins at the longest
Verdict by run · 2 runs · tap a run to read it
Run 01·2026-09-10·83.14% Most of the purchased-bonus payout came from collections: USD 5,456, against USD 469.60 from ordinary line combinations.

Most of the purchased-bonus payout came from collections: USD 5,456, against USD 469.60 from ordinary line combinations. A screen full of fish still needed a fisherman to turn its cash labels into a collection.

Purchases 11 and 25 each received four modifiers. Number 11 paid USD 562.80 over 24 spins; number 25 paid USD 29.20 over its twelve starting spins. No feature in either statistical series received all five modifiers. The opening icons described the conditions for those rounds, but gave a poor guide to their eventual payouts.

Purchase 49 was the clear outlier at USD 1,100. It began at level two with the extra-fishermen modifier, then extended from ten spins to thirty. Its fish collections paid USD 1,086 and line wins added USD 14. This was the only purchase to return at least five times its price; forty-one of the 50 buys paid less than their cost, and the median return of USD 57.90 was under one third of the USD 200 entry.

Ordinary play first built a surplus: the balance reached USD 101,746 on round 2590, whose natural feature paid USD 697.20, then fell to USD 95,513.40 by round 9284, a drop of 3,116.3 stakes from that peak. The final balance recovered to USD 96,628, leaving the loss at USD 3,372 and the return at 83.14% of USD 20,000 spent. The recorded extra-fish bonus paid USD 84 on a USD 200 purchase; the USD 1,100 best statistical purchase sits inside a series that lost USD 4,074.40. Both entry routes finished behind, and the fish did the paying in both.

Run 02·2026-09-29·97.21% Round 4497 ran forty free spins, the longest feature of the run, and finished at USD 1,045.20, 522.6 stakes, the largest round on this page; 27 other natural features also extended past their starting award, and the 86 natural rounds averaged 14.5 spins against entries of ten, twelve, fifteen or seventeen.

Round 4497 ran forty free spins, the longest feature of the run, and finished at USD 1,045.20, 522.6 stakes, the largest round on this page; 27 other natural features also extended past their starting award, and the 86 natural rounds averaged 14.5 spins against entries of ten, twelve, fifteen or seventeen. Their whole rounds came to USD 12,624.20, 64.9% of everything the 10,000 ordinary rounds returned, 73.40x per feature and 43x at the median: 21 features cleared 100x, 15 stayed under 20x, the smallest paid 10.4x, and the wait between triggers averaged 116 spins with one stretch of 955 spins, rounds 8490 to 9446.

Outside the feature one hit was worth writing down: round 5798 paid USD 401 on a single spin, 200.5 stakes, the only scatter-free round above 76x. Elsewhere 8,670 rounds paid nothing, the longest empty run lasted 56 spins from round 7803, and 75 runs of twenty or more empty spins were logged. The balance crossed its starting line on spin 486, climbed to 1,074.5 stakes up by spin 4540, then gave most of it back and closed 279 stakes down at USD 99,442, 97.21% of the USD 20,000 staked. The 200-stake test bankroll lasted 399 spins, the 100-stake one 119 and the 50-stake one 65.

On the purchase side, fifty USD 200 tickets produced USD 6,882.80 in return, 0.688x of price, 68.83%, on a 0.38x median, USD 76.00: 37 tickets below their price, 13 above it, three past 2x and none past 5x. Purchase 33 was the best at USD 544, 2.72x, over twenty spins; purchases 1 and 22 were the worst at USD 4 each. Thirteen bought features retriggered, the average bought round ran 14.1 spins and the longest 30 on purchases 10, 15 and 38, and fish collections supplied USD 6,618 of the USD 6,882.80, USD 132.36 per ticket, with line combinations adding USD 264.80.

Test record

2 runs · 20,000 rounds · 100 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 runs2026-09-10 → 2026-09-29
Measured return 90.18% 95% band 77.0–103.3% · declared 96.71%
  • 20,000rounds, all runs
  • 14%rounds that paid
  • 523xbiggest round
  • 1 / 118natural bonus rate
  • 0.64xmean of 100 buys
  • 56longest dry streak
return by run, and combineddeclared 96.71%
Run 1 · 2026-09-1010,000 rounds
83.14%95% band 66.3–99.9%
Run 2 · 2026-09-2910,000 rounds
97.21%95% band 77.0–117.4%
All runs20,000 rounds combined
90.18%95% band 77.0–103.3%
60%80%100%120%declared 96.71%
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
90.18% after 20,000 roundsdeclared 96.71%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
bonus purchases, run by run100 buys
Run 1 · 2026-09-10mean 0.59x · median 0.29x · 41/50 below price
Run 2 · 2026-09-29mean 0.69x · median 0.38x · 37/50 below price
bar = one purchase, what it returned as a multiple of its price · dashed line = the price · square-root scale
Each run on its own · tap a run to open it
01run Run 012026-09-10 10,000 rounds at USD 2.00 · 50 buys · rig 0.8.7 · RTP profile 96.71% measured return83.14%-13.6 pts vs declared 95% band66.3–99.9% natural bonuses84 · 1 / 119 bonus buys, mean0.59x
95% band
66.3–99.9%
rounds that paid
14%
biggest round
349x · round 2,590
longest dry streak
51
natural bonuses
84 · one per 119 rounds
bonus buys
mean 0.59x · median 0.29x · 82% below price
balance start → end
100,000 → 96,628
deepest drawdown
3,116x
Download this run · the square button copies the file’s SHA-256, so you can confirm the download is unchanged
02run Run 022026-09-29 lab note 10,000 rounds at USD 2.00 · 50 buys · rig 0.8.7 · RTP profile 96.71% measured return97.21%+0.5 pts vs declared 95% band77.0–117.4% natural bonuses86 · 1 / 116 bonus buys, mean0.69x
95% band
77.0–117.4%
rounds that paid
13%
biggest round
523x · round 4,497
longest dry streak
56
natural bonuses
86 · one per 116 rounds
bonus buys
mean 0.69x · median 0.38x · 74% below price
balance start → end
100,000 → 99,442
deepest drawdown
1,411x
lab note · 2026-09-30

Run two, logged on 29 September, returned 97.21% against 83.14% on 10 September, and over 20,000 rounds the pooled figure is 90.18%, still under the printed 96.71%. The features grew rather than multiplied: 86 triggers against 84, but 28 retriggered rounds against 16, 73.40x against 59.90x per feature and 22 rounds above 100x against 14, while the purchases improved from 0.5926x to 0.6883x of price and the deepest fall shrank from 3,116 stakes to 1,411.

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 (2026-09-10, 2026-09-29): 20000 ordinary paid rounds, including naturally triggered features, at a fixed USD 2.0 bet; 100 bonus buys at 200.0 each (100.0x) on the official Pragmatic Play demo server (jurisdiction 99, RTP profile 96.71%); 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 →

CLOSED RIG OPEN DATA

FAQ

6 questions · answered from the log
How different were the two Big Bass Splash runs?
Lab answer

The first 10,000 rounds returned 83.14% and the second 97.21%, 90.18% pooled against the declared 96.71%. The base game hardly moved, a hit on 14.08% and 13.3% of spins; the second run's features paid 73.40x on average against 59.90x, and 28 of them retriggered against 16.

In each Big Bass Splash run, how many times did the fishing feature start?
Lab answer

Eighty-four times in the first run and 86 in the second, 8.5 natural features per 1,000 rounds, which is one every 118 spins on average. Three waits exceeded 600 spins, and the first trigger arrived on spin 72 of run one and spin 150 of run two.

Does buying Big Bass Splash free spins at 100x pay off?
Lab answer

No. Bought fishing rounds at USD 200 each returned 0.640x of price over 100 tickets, 64.04%, with a 0.356x median, USD 71.20. Twenty-two tickets covered their price, five reached 2x and one reached 5.5x; the bought feature retriggered 22 times in 100 and lasted 13.5 spins on average against 13.8 for the 170 natural rounds.

Did the fish or the lines pay the bought features?
Lab answer

From fish values collected by fishermen: USD 5,456 of USD 5,925.60 in the first run and USD 6,618 of USD 6,882.80 in the second, with line combinations adding USD 469.60 and USD 264.80. Every one of the 100 tickets collected at least one fish.

Which feature ran longest on this page?
Lab answer

Forty spins was the longest on this page, reached once per run: round 9546 of run one paid 269.6x and round 4497 of run two paid 522.6x. The 170 natural features averaged 13.8 spins, 44 of them retriggered, and the bought rounds peaked at 30 spins, twice in run one and three times in run two.

Which single spin paid the most outside the feature?
Lab answer

Round 5798 of run two, USD 401 on one spin, 200.5 stakes; the next scatter-free hits were 76x, on round 9910 of run one and round 6681 of run two. Thirty-six rounds in 20,000 passed 100x, all but that one inside free spins.

Field notes

0 notes
Slotester Labmeasured run · every request logged measured
  • spins20,000
  • bet2.00
  • result-1,965x
  • RTP measured90.2%
  • bonuses170
  • max win, no bonus200.5x

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