Big Time Gaming · 2020 · measured RTP 85.7% · tested 2026-11-13
Royal Mint
Royal Mint's Gold Bar meter filled once in each of two 5,000-round demo sessions, measured at 85.7% RTP overall, and eight of 18 ordinary bonuses paid more than either Heartstopper round.
In numbers: the lab's RTP test on the official demo server measured 85.7% against 96.48% declared over 10,000 logged rounds; 35.2% of rounds paid; a natural bonus landed once per 500 rounds (20 in total) and a bonus round paid a median 52.9x the stake, mean 92.8x, trigger spin included; the biggest round paid 319.0x; the longest dry run was 29 spins.
Royal Mint demo
United States·available at Cafe Casino
Same reels, real payouts
Cafe Casino runs the same Royal Mint 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 · FUN 2.00 bet · every request logged
| Spins | 10,000 |
| Bet | FUN 2.00 |
| RTP declared | 96.48% |
| RTP measured | 85.72% (approximate 95% CI 73.8–97.7) |
| Hit frequency | 35% · every 2.84 |
| Dead streak max / avg | 29 / 2.87 |
| Median hit | 0.90x |
| Max win (no bonus round) | 50.4x · round 3314 |
| Free spins, natural | 20 · 2.0 bHz · every 500 spins · mean bonus round payout 92.8x stake |
| Balance start → end | 5,000 → 2,145 |
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 · 20 in 10,000 spins
Four gold Scatter tiles on a FUN 2.00 spin that pays FUN 4.80 open 12 free spins; the win multiplier climbs from x1 to x8 over the first two spins as TOTAL WINNINGS goes to FUN 60.30, a FUN 51.90 BIG WIN on the ninth spin takes it from x11 to x13 and the total to FUN 135.80, the last three spins add nothing, and a SUPER WIN! banner repeats the sum on the base reels. Recorded in a separate browser session, outside the statistical samples.
Across the whole run the 20 natural bonuses split into 1 under 20x, 8 between 20x and 50x, 5 between 50x and 100x and 6 at 100x or more, and together they made up 22% of everything the game returned. The wait between two triggers ran from 26 to 1,757 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.
Extra spins inside the feature come from Scatters on the two extra reels, 4 for three of them and 4 more for each one above three. One of the 20 natural bonuses got such an award: round 8694 drew four Scatters on its sixth free spin, gained 8 and ran 20 spins. The four bonuses that opened with 16 spins had five Scatters at the trigger, in round 3043 counting the one the full meter adds, and an opening award is not treated as an extension.
- triggers 20 1 per 500 spins
- every 500 spins gaps 26 to 1,757
- mean 92.8x bonus round median 52.9x stake
- best 319.0x round 8096
- spins per bonus 13.2 12 to 20 observed
- 01round 809616 spins319.0x
- 02round 638412 spins240.0x
- 03round 559312 spins231.9x
- 04round 976412 spins208.4x
Risk profile
how much bankroll this run needed
| 50 bets | bust at spin 122 |
| 100 bets | bust at spin 189 |
| 200 bets | bust at spin 495 |
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
The middle four of Royal Mint's six reels each borrow one cell from an extra reel that runs above them and one from another that runs below. A reel, alone or with those cells, holds up to seven symbols, which puts the ceiling at 117,649 Megaways. A payout takes the same symbol on reel 1, on reel 2 and on each reel after them without a gap.
Two purple gems are already a win at 2x the stake, and six pay 50x; the red gem gives 1x to 7.5x for three to six, the blue and green gems 0.25x to 2x. Card symbols start at 0.2x to 1.75x for the ace and king and end at 0.1x to 0.8x for the nine. Each winning symbol is removed in a reaction and replaced, with new symbols arriving from above on the main reels and from the right on the two extra reels; this repeats until a screen forms no win. The Wild appears only on the extra reels and substitutes for any symbol but the Scatter.
Scatters are four gold tiles that spell MINT. Four of them anywhere award 12 free spins and every further one adds 4. Free spins run under a win multiplier that opens at x1 and gains 1 with each reaction, with no upper limit; in the logged features its value carried over between spins. Scatters then show on the extra reels only, drawn as stacks of gold bars, where three add 4 spins and each one beyond three adds 4 more.
A spin that stops on three Scatters awards a Gold Bar. With 40 bars collected the game adds one extra Scatter to every spin until the feature triggers, and that feature is the Heartstopper Enhanced Free Spins, in which the multiplier starts at x2 and rises by 2 per reaction; the log shows the meter empty again afterwards. Stakes begin at FUN 0.20, the game data lists RTP at 96.48%, and the tested demo has no bonus purchase.
Megaways
Cascading reels
Wild symbol
Scatter symbol
Free spins
Multiplier
Retrigger
Bet range FUN 0.20 – 50 per spin · payouts read from the game's paytable at bet FUN 2.00
Gallery
11 frames from the demo session
Verdict
The last four free spins held 57.3% of the money
Three-Scatter stops added 144 Gold Bars across the 10,000 rounds, one per 69.4, and the meter reached 40 twice, at rounds 3022 and 7492. With the extra Scatter in play the Heartstopper Enhanced Free Spins followed 21 and 168 rounds later, the second from a screen that held just three Scatters of its own. Trigger spin included, the two rounds paid 57.4x and 54.15x the stake, ninth and tenth of the 20 natural bonuses.
Round 3043 pushed its doubled counter to x24 by the sixteenth free spin and collected FUN 38.40 there, while round 7660 took its last payout at x14 and closed with the counter on x16. Six bonuses on the standard x1 start went past 100x, the largest of them round 8096 at 318.95x, where the last of 16 free spins paid FUN 583.20 at x11 and x12. Among the 18 standard bonuses, the ten with at least ten winning reactions averaged 153.05x and the other eight 26.63x, whole rounds in both groups.
Free spins money sat near the end of a feature: 57.3% of it was paid on the last four spins of the 20 bonuses and 8.5% on the first four. The test was logged as two sessions of 5,000 rounds, each opening with an empty meter, so the 35 bars standing at round 5000 did not pass into the second half. The meter stood full for 189 rounds and two triggers fell inside them, one per 94.5 rounds against one per 545.1 below 40 bars; both of those features paid under 60x.
- Trigger spin counted, six natural bonuses out of 20 passed 100x the stake and together held 69.8% of all bonus income
- A separate reel set dealt the full 117,649 ways on 65 base rounds, which averaged 3.43x in base-game money against 0.657x on the rest
- Four bonuses opened with 16 free spins rather than 12, the award for a fifth Scatter at the trigger
- Reactions alone completed the four Scatters in seven of the 20 triggers, after a first screen that showed fewer
- Eight standard bonuses with fewer than ten winning reactions all finished at 40.4x the stake or less, trigger spin included
- The 40th Gold Bar arrived at round 3022 of one session and 2,492 rounds into the other
- Only round 8694 gained spins during its feature, 8 of them from four Scatters on the sixth free spin
- Round 60 had three winning reactions in 12 free spins and paid 4.05x the stake with its trigger spin
Test record
10,000 rounds · 0 buys · open data · closed rig
One test run so far: a single session of the base game on the official demo server, every request and response logged; the game offers no bonus purchase, so every feature in the sample came from ordinary spins. 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
- 35%rounds that paid
- 319xbiggest round
- 1 / 500natural bonus rate
- 29longest dry streak
01run Run 012026-11-13 measured return85.72%-10.8 pts vs declared
- 95% band
- 73.8–97.7%
- rounds that paid
- 35%
- biggest round
- 319x · round 8,096
- longest dry streak
- 29
- natural bonuses
- 20 · one per 500 rounds
- balance start → end
- 5,000 → 2,145
- deepest drawdown
- 1,747x
10,000 ordinary rounds, including naturally triggered features, at a fixed FUN 2 bet; recorded on the Big Time Gaming demo served by the Relax Gaming platform (jurisdiction MT, RTP profile 96.48%); every request and response logged; test run 2026-11-13.
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
4 questions · answered from the log
What fills the Gold Bar meter in Royal Mint, and how long does it take?
A spin that stops on exactly three Scatters adds one bar, and 40 are needed. In 10,000 logged rounds that happened 144 times, with a median of 48 rounds from one bar to the next and 476 at the longest. Once the meter is full the game adds a Scatter to every spin, and the next free spins trigger is the Heartstopper Enhanced version.
Do Heartstopper Enhanced Free Spins pay more than the regular Royal Mint free spins?
No. Rounds 3043 and 7660, the only Enhanced features of this log, averaged 55.78x the stake as whole bonus rounds, while the 18 standard bonuses averaged 96.86x with a median of 46x and a best of 318.95x. Two features are too few to rank the modes, even though the first took a payout at x24 and the second at x14.
What explains an 85.72% return in the Royal Mint demo when 96.48% RTP is listed?
Base-game reactions returned 67.45% of the stake and the free spins of the 20 natural bonuses another 18.27%. With so few bonuses in the sample the approximate 95% CI is wide, 73.78% to 97.67%, and 96.48% lies inside it. That figure comes from the game data of the tested demo; the studio's website quotes 96.53% for the same title.
What gap separates one Royal Mint free spins trigger from the next?
Twenty triggers in the 10,000 rounds make one per 500, which at FUN 2.00 a spin is FUN 1,000 of turnover per bonus, wins not deducted. The longest wait was 1,757 rounds, counted from round 3043, a Heartstopper bonus, to the trigger of round 4800. Nothing shortens the wait except a full Gold Bar meter, because the tested demo offers no purchase.
Comments and reviews
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- spins10,000
- bet2.00
- result-1,428x
- RTP measured85.7%
- bonuses20
- max win, no bonus50.4x
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