Nolimit City · 2025 · measured RTP 95.1% · tested 2026-09-30
Mental II
A fourth Fire Frame opens Mental II's Enhancer Cell under reel 2, the source of the xSplit on 350 of 369 base spins that had one; the two-run demo test of 20,000 rounds measured 95.1% RTP.
In numbers: the lab's RTP test on the official demo server measured 95.1% against 96.06% declared over 20,000 logged rounds in 2 runs; 30.9% of rounds paid; a natural bonus landed once per 270 rounds (74 in total) and a bonus round paid a median 46.8x the stake, mean 108.7x, trigger spin included; 100 bonus buys at 100x returned 0.93x of their price on average, 81% of them below the price; the biggest round paid 2,510.7x; the longest dry run was 22 spins.
Same series: Mental — tested separately
Mental II demo
United States·available at Cafe Casino
Same reels, real payouts
Cafe Casino runs the same Mental II 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
20,000 spins · EUR 1.00 bet · every request logged
| Spins | 20,000 · 2 runs |
| Bet | EUR 1.00 |
| RTP declared | 96.06% |
| RTP measured | 95.10% (approximate 95% CI 67.9–122.3) |
| Hit frequency | 31% · every 3.23 |
| Dead streak max / avg | 22 / 3.23 |
| Median hit | 0.60x |
| Max win (no bonus round) | 300.0x · run 1, round 7108 |
| Free spins, natural | 74 · 3.7 bHz · every 270.3 spins · mean bonus round payout 108.7x stake |
| Balance start → end | 10,000 → 9,021 |
- 012026-09-2910,000 rounds · 50 buysfiles & checksums ↓86.41%RTP5 files · SHA-256 ↓
- 022026-09-3010,000 rounds · 50 buysfiles & checksums ↓103.80%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
100 buys × 100x · EUR 100 each
mean 0.93x · median 0.51× price (EUR 50.95) · 81 of 100 below price · best 20.72x · worst 0.11x
| Spins per bonus (avg / min–max) | 8.6 / 8–12 |
| Retriggered | 39% |
| Bonuses that paid nothing | 0% |
A bonus starts with eight Bloodletting Spins, one more for each Cognitive Scatter that lands inside a Fire Frame on the trigger and two more inside a Fire Reel; a Disembodied Scatter during the round upgrades it to Surgery Spins and adds a spin. Nineteen of the fifty bought rounds ran past eight spins: 18 took their extra spins at the start and one, ticket 47, through an upgrade.
- Spent
- EUR 10,000100 × EUR 100
- Returned
- EUR 9,253.6592.54% · approximate 95% CI 50–135%
- Net
- −EUR 746.35−7.5 buys
- Break-even or better
- 19 / 10019%
- Paid 2× price or more
- 4 / 1004%
- Price in base spins
- 100natural trigger every ~270 spins
One ticket equals 100 ordinary stakes. Natural bonuses occurred once per 270 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
| 50 bets | bust at spin 76 |
| 100 bets | bust at spin 239 |
| 200 bets | bust at spin 516 |
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
23 rules screens from the game
Mental II spins five reels shaped 3-2-3-2-3, which gives 108 ways before any feature adds more; a win needs the symbol on neighbouring reels starting with reel 1. The Patient portraits pay 1.00x to 2.50x the bet per way for five of a kind, the bone symbols 0.50x to 0.75x, and a Wild substitutes for any paying symbol.
On any base spin one to thirteen positions can turn into Fire Frames, which split whatever lands inside into two symbols, and one to five reels can burn as Fire Reels that split into three. Those frames also unlock the Enhancer Cells under reels 2, 3 and 4: four frames open the reel 2 cell, six add reel 4 and eight open all three, a Fire Reel counting as two or three frames by its height. An open cell shows a Wild, an xNudge Wild, xSplit, xWays or a Patient symbol.
Two or more Dead Patient tombstones start the Dead Patients feature, and each of them reveals a Patient symbol with a random multiplier from x5 up to x9,999. A Disembodied Scatter on reel 2 or 4 turns into one of five things, the Mental Transform: a Patient symbol, a Wild, xWays, xSplit or a Dead Patient. xHole works only from a Fire Frame or Fire Reel on the second position of reel 3 and xMental only from a frame anywhere on the reels; xMental then plays an extra spin with every position framed.
Three Cognitive Scatters, a symbol limited to reels 1, 3 and 5, award 8 Bloodletting Spins, in which Fire Frames and Fire Reels stay in place until the end. With one Disembodied Scatter beside them the award is 9 Surgery Spins, where Dead Patient multipliers are banked and handed to later Patient symbols, and with two it is 10 Experimental Spins, where the banked counts never run down. Every scatter sitting in a frame adds a spin, two in a Fire Reel, and a Disembodied Scatter during the round upgrades the spins still to come.
Bloodletting Spins cost 100x the bet in the Nolimit Bonus menu, Surgery 250x, Experimental 1,800x, a Lucky Draw between the three (50/40/10%) 330x and God Mode 6,666x. The Nolimit Booster raises the price of every spin instead: 1.4x the bet guarantees a Cognitive Scatter on reel 1, 6x puts Fire Frames on every position, 99x guarantees xHole and 3,200x xMental. The base game is set at 96.06% and the five feature buys at 96.10% to 96.16%; bets go from EUR 0.20 to EUR 100, and the 99,999x cap is simulated once in 16,000,000 rounds; the studio rates the volatility 10.0 (Insane).
Free spins
Scatter symbol
Wild symbol
Multiplier
Expanding symbol
Sticky symbol
Retrigger
Bonus buy
Extra bet
Bet range EUR 0.20 – 100 per spin · payouts read from the game's paytable at bet EUR 1.00
Gallery
8 frames from the demo session
Verdict
One round, eleven frames
Two Mental II runs of 10,000 spins at EUR 1 have returned 86.41% and 103.8%, 95.1% pooled and 979 bets below the start, with the base game paying on 31.64% and then 30.24% of spins, 0.6x the median hit, and 69.1% of all rounds paying nothing. The second run owed its surplus to one round: 4398 locked eleven Fire Frames in ten Bloodletting Spins and paid EUR 2,510.65, six times the first run's 422.3x record, and the 2,000-spin block that held it returned 241.4% while the run's other four blocks ranged from 62.3% to 77.3%.
Seventy-four natural bonuses arrived at a rate of one per 270 spins, or 3.7 bHz, and paid 108.73x the bet on average for the whole round, 46.8x at the median, 42.3% of everything returned: 71 opened as Bloodletting Spins and three as Surgery Spins, two more upgraded to Surgery mid-round, 26 started above the basic eight spins, and twelve cleared 100x while only one, round 3796 of run two, paid under 20x. The frames locked by the last spin still sorted the money in both runs: rounds with nine to eleven averaged 112.0x from their free spins in run one and 678.48x in run two, those with five or fewer 37.57x in the second. Longest waits: 900 spins in run one, 912 in run two.
The Enhancer Cells opened under reel 2 on 10.02% and 9.60% of base spins, and the xSplit they supplied paid 55.5% and 46.3% of the base-game money; the largest scatter-free rounds were 300x on round 7108 of run one and 134.4x on round 4393 of run two, and across 20,000 spins xHole landed 53 times without activating and xMental ten times without its extra spin. One hundred Bloodletting tickets at EUR 100 returned EUR 9,253.65, 0.9254x of price, 92.54%, with a EUR 50.95 median, 81 losing tickets, four beyond 2x and two beyond 5x, ticket 8 of run one at 20.721x and ticket 9 of run two at 7.459x; 38 of the hundred opened on more than eight spins and two upgraded to Surgery Spins.
- Round 4398 of run two paid EUR 2,510.65 from ten Bloodletting Spins, 2,510.65x the bet
- Twelve of 74 natural bonuses passed 100x, and only one paid under 20x
- Natural bonuses arrived every 270 spins on average, 26 of 74 opening above the basic eight spins
- The reel-2 Enhancer Cell's xSplit carried 55.5% and 46.3% of the base-game money in the two runs
- One hundred and ninety spins before the record round, the pooled balance sat 2,631.4 bets under its start, on spin 4208 of run two
- Eighty-one of the 100 Bloodletting tickets came back below their EUR 100 price
- Experimental Spins have not appeared in 74 natural bonuses or 100 purchases
- xHole landed 53 times and xMental ten times across both runs without ever activating
Run 01·2026-09-29·86.41%
Thirty-eight natural bonuses arrived in 10,000 spins, one per 263, and 36 began as Bloodletting Spins. Rounds with nine to eleven Fire Frames locked by their final spin averaged 112.0x the bet from the free spins alone, while those with six to eight averaged 47.0x. Surgery Spins appeared three times, once through an upgrade in round 5798, and round 2996 banked a x50 Dead multiplier on its way to 313.15 EUR; Experimental Spins never showed.
Fifty Bloodletting purchases at 100x came back at 102.59% of their cost on the strength of ticket 8, which paid 2,072.10 EUR, 20.721 times its price, while the next best returned 184.00 EUR. Half of the tickets paid 49.55 EUR or less, and ticket 47, upgraded to Surgery Spins by a Disembodied Scatter, ended at 29.25 EUR.
In 84.5% of base spins fewer than four effective Fire Frames burned, the Enhancer Cells stayed shut and the average return was 0.225x the bet. Four or five frames opened the cell under reel 2 and lifted the average to 1.769x; six or seven added the reel 4 cell and it reached 4.070x. That reel 2 cell put the xSplit on screen in 350 of the 369 spins that had one, and those 350 spins paid 55.0% of the base-game money; all seven base rounds of 50x or more were among them.
Run 02·2026-09-30·103.80%
Round 4398 opened on ten Bloodletting Spins, locked eleven Fire Frames by its last spin and paid EUR 2,510.65, 2,510.65x the bet, the biggest round this page has seen, six times the previous record, and half of everything the run returned; 234 spins later round 4632 added 648.9x from eight spins and six frames. Those two rounds took the balance from 1,272.2 bets down on spin 4208 to 1,935.5 up on spin 4632, and the third 2,000-spin block returned 241.4% while the other four came in between 62.3% and 77.3%; the run closed at EUR 10,379.80, 379.8 bets ahead, 103.8% of the EUR 10,000 staked, the 50-bet bankroll lasting 119 spins, the 100-bet 381 and the 200-bet 600.
Thirty-six natural bonuses came one per 278 spins, 3.6 bHz; their whole rounds were worth EUR 5,196.20, 50.1% of the return, 144.34x on average and 49.25x at the median: 35 started as Bloodletting Spins and one as Surgery Spins, round 2705 upgraded from Bloodletting to Surgery for EUR 55.95, twenty opened on the basic eight spins and sixteen on nine to eleven, and the weakest, round 3796, paid 14.6x. Six passed 100x, 5501 (220.35x), 5612 (208.1x), 1596 (141.45x) and 8767 (110.2x) behind the two records, and the count of sticky frames on the final spin sorted them: four rounds that locked nine to eleven averaged 678.48x from their free spins, seventeen with six to eight 112.72x, fifteen with five or fewer 37.57x. The longest waits ran 912 spins after round 7854 and 875 after round 5612, and the highest Dead Patient multiplier banked inside a natural round was x15.
Thirty spins in a hundred paid, 30.24% with a 0.6x median, 6,976 rounds returned nothing, and the single 20-spin drought started on round 1770; the Enhancer Cells stayed shut on 84.97% of spins, opened under reel 2 on 9.60%, under reels 2 and 4 on 4.53% and under all three on 0.90%, and the reel-2 cell showed xSplit 334 times, spins that paid EUR 2,400.25, 46.3% of the base-game money, 7.186x on average. Only one scatter-free round passed 100x, 134.4x on round 4393 from one four-reel symbol on 192 ways under eight effective frames, and xHole landed 27 times without activating while xMental appeared seven times without its extra spin. Fifty Bloodletting purchases at EUR 100 returned EUR 4,124.30, 0.8249x of price, 82.49%, with a EUR 51.50 median: 39 lost money, three doubled and one passed 5x, ticket 9 at EUR 745.90, 7.459x, from eleven starting spins and thirteen locked frames, while ticket 32 closed at EUR 10.60 and ticket 14, upgraded to Surgery Spins, ran twelve spins for EUR 170.50.
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.
- 20,000rounds, all runs
- 31%rounds that paid
- 2,511xbiggest round
- 1 / 270natural bonus rate
- 0.93xmean of 100 buys
- 22longest dry streak
01run Run 012026-09-29 measured return86.41%-9.7 pts vs declared
- 95% band
- 69.8–103.0%
- rounds that paid
- 32%
- biggest round
- 422x · round 6,700
- longest dry streak
- 22
- natural bonuses
- 38 · one per 263 rounds
- bonus buys
- mean 1.03x · median 0.496x · 84% below price
- balance start → end
- 10,000 → 8,641
- deepest drawdown
- 1,360x
02run Run 022026-09-30 lab note measured return103.80%+7.7 pts vs declared
- 95% band
- 52.0–155.6%
- rounds that paid
- 30%
- biggest round
- 2,511x · round 4,398
- longest dry streak
- 20
- natural bonuses
- 36 · one per 278 rounds
- bonus buys
- mean 0.82x · median 0.515x · 78% below price
- balance start → end
- 10,000 → 10,380
- deepest drawdown
- 1,573x
A day later, on 30 September, the second run returned 103.8% against 86.41%, 95.1% pooled over 20,000 spins against the declared 96.06%. One round, 4398, supplied EUR 2,510.65 of the EUR 10,379.80 returned; natural bonuses came 36 times against 38 and averaged 144.34x against 74.99x, and the fifty Bloodletting tickets fell to 0.8249x of price from 1.0259x.
2 test runs combined into one sample (2026-09-29, 2026-09-30): 20000 ordinary paid rounds, including naturally triggered features, at a fixed EUR 1.0 bet; 100 bonus buys at 100.0 each (100.0x) on the official Nolimit City demo server (jurisdiction DEFAULT, RTP profile 96.06%); 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
7 questions · answered from the log
Does 95.1% over two runs say anything about Mental II's RTP setting?
No. Pooled, 86.41% and 103.8% give 95.1% over 20,000 spins at EUR 1, and the approximate 95% band around that, 67.88% to 122.32%, holds the declared 96.06% with room to spare; a single round of 2,510.65x moves the pooled figure by more than twelve points. The combined balance ended 979 bets below the start.
Is a Mental II bonus really one per 270 spins?
Yes, over both runs: seventy-four natural bonuses in 20,000 spins, one per 270 or 3.7 per 1,000: 38 in the first run and 36 in the second, with the longest waits at 900 and 912 spins. Forty-five of them opened with the basic eight Bloodletting Spins; scatters inside Fire Frames or Fire Reels added one to three starting spins to 26 rounds, and three rounds opened as Surgery Spins with nine.
Does buying Bloodletting Spins at 100x pay off?
No, not across 100 purchases: the ticket returned EUR 9,253.65 for EUR 10,000, 0.9254x of price or 92.54% against the 96.11% the studio sets for it: 1.0259x in the first batch and 0.8249x in the second. Two tickets carried the sample, number 8 of run one at 20.721x and number 9 of run two at 7.459x; set those two aside and the other 98 averaged 0.6567x their price.
What do Fire Frames do in Mental II?
A framed position splits its symbol into two, adding ways, and the number of frames decides the Enhancer Cells: at four the cell under reel 2 opens, at six the one under reel 4 joins it, at eight the middle cell as well. Both runs show the step: base spins with three effective frames averaged 0.307x and 0.302x the bet, spins with four or five 1.769x and 1.789x.
Did xHole or xMental ever trigger?
No, in 20,000 base spins. xHole symbols landed 26 times during run one and 27 during run two, but the feature only starts when one sits inside a Fire Frame or Fire Reel on the second position of reel 3, and that never happened; xMental landed three and then seven times and never started its extra spin.
Is Mental II better than the first Mental?
No, not measurably, since the tests cannot separate them: the first Mental measured 83.71% over its 10,000 spins, Mental II 86.41% and then 103.8%, all with bands wide enough to include the declared figures. The base games differ in where the money comes from: spins with xSplit made up 30.38% of the first game's base-game money and 55.5% and 47.0% of Mental II's in its two runs.
What built the 2,510x of round 4398?
It opened with ten Bloodletting Spins, two more than the basic eight from scatters landing in frames or a Fire Reel on the trigger, and by its last spin eleven frames were locked, splitting symbols across the widest ways of the run; the free spins paid EUR 2,510.65 on a EUR 1 bet with no Dead Patient multiplier involved. The next best rounds were 648.9x on round 4632 of the same run, 234 spins later, and 422.3x on round 6700 of the first.
Comments and reviews
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- spins20,000
- bet1.00
- result-979x
- RTP measured95.1%
- bonuses74
- max win, no bonus300.0x
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