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Independently tested in the free demo
In short: Grosvenor Casinos scores 9.2 and MrQ 9.1 on the sixteen disclosure criteria this site applies to Razor Shark, with PlayOJO last at 8.2. The ranking measures what each licensee publishes and a register can confirm, not how good the casino is.
Sixteen criteria, three groups, one question: what will each British licensee put in writing about this slot? The answer sorts five lobbies into an order that has little to do with which one you would enjoy using.
Scores 9.2, with five Active licences on account 57924 and six payment methods each carrying its own minimum; it also prints "RTP = 96.70%" on its own game page, which we could read only in an archive capture of because the live domain refuses us.
Scores 9.1, and it is the only lobby that answers all three of stake ceiling, return and wagering contribution for this title: "Min/Max Bet: 10p/£1", "RTP: 96.70%", and a 214-game exclusion roster that omits it.
Scores 9.0, publishing a £10 withdrawal floor free of wagering, a closed loop back to the depositing card, and a verification promise, while saying nothing at all about this game's numbers.
Scores 9.0 on the same account 38905 as Virgin Games, and differs where it matters for a reader: Instant Bank Transfer appears among its deposit methods, and its welcome rules carry a different date.
Scores 8.2, the lowest of the five. Its game page prints "85,475x Max Win Potential" and "RTP: undefined%" in the same block, which the server serves us in euros, so the one headline figure it offers cannot be traced to anything.
| Brand | Minimum published | Maximum published | How it compares with the client |
|---|---|---|---|
| MrQ | 10p | £1 | a hundred times under the panel's top step |
| Grosvenor Casinos | 10p | £2 | fifty times under it, and below its own payout claim |
| PlayOJO | broken field | £2/£5 | quotes the regulator's cap in place of a grid |
| Virgin Games | 10p | absent | stops at the floor and leaves the top open |
| Jackpotjoy | 10p | absent | identical wording to its sibling site |
Sixteen checks, three groups, one scale.
Trust weighs heaviest because a licence is the only claim on these pages a third party will confirm for free. We looked up each account in the Gambling Commission register. We read what the register says rather than what the footer says, and we recorded the gap when the two diverged. MrQ supplied one: its own terms still quote licence number 060629-R-337532-003, while the register lists 060629-R-337532-005.
Game and Money divide the rest. Game asks what the operator will tell you about this title before you deposit. Money asks what it will tell you about getting paid.
Here is the finding that surprised us most, and seeing it took five pages side by side. One game, five licensees, five different accounts of the same stake ladder. MrQ publishes a £1 ceiling, a fifth of the British cap and entirely its own choice. Grosvenor Casinos publishes £2. The two Gamesys sites publish a floor of 10p and then fall silent. PlayOJO fills the slot with the regulatory cap in place of a grid.
The client itself offers twelve steps between 0.10 and 100.00. Every British lobby sits well under that, as it must: the stake cap runs to £5 a game cycle, and £2 for players under 25. Why one licensee stops at £1 and the next at £2 remains unexplained on both pages.
Whichever lobby you open, the mechanic is identical. That is worth saying, because a ranking can imply otherwise.
Stacks of four covered tiles land and nudge down a position per spin. Golden sharks start the reveal round, which fills those positions with bet-multiplier coins between 1x and 2,500x and totals every coin in the round. Three sea mines start the free games, where a multiplier climbs each time the nudge triggers.
What the lobby changes is narrower and harder to spot: which of the eleven builds in the game's code it runs, and where it sets the stake ceiling. Both stay off all five pages.
A high score means the operator writes things down. It carries no opinion about payout speed, support quality or how the lobby feels in use, and saying so plainly beats letting a number imply it.
The scale can also reward a wrong figure over an honest blank, and on this title it does. PlayOJO earns credit for publishing a ceiling, then loses more elsewhere. Virgin Games earns nothing for a ceiling it never claims. Across 105,065 bytes of its game page the token RTP occurs zero times, which is an absence rather than an error. Judge accuracy from the page text, and completeness from the score.
We do not recommend using PlayOJO's game page as a source for this title's figures. The block that should hold the facts prints two broken money values, plus the string undefined% where a return belongs. The one clean number beside them, 85,475x, arrives without a date or an origin. As a casino it is licensed and clean in the register, with four Active activities on account 39326 and no recorded action. As a reference, that page is unusable.
A second caution, smaller, aimed at the opposite end of the table. MrQ gives the most detail of anyone here, and 15 of its 38 catalogue pages we parsed still print a maximum stake above the British cap. Trust its 96.70% more readily than its stake figures.
Then none of these five is the answer, and that is the honest end of a ranking page about casinos. British licensees must verify a player's age before opening free play under LCCP 3.2.11, so a logged-out visitor meets a join button. PlayOJO alone promises a "Try For Free" control. We found it only in the text of its own FAQ, never as a button on the page.
The studio runs an open demo on its own site, with no account and no deposit. That is where we played, and where every frame on this site came from.
Not sure yet? Try the free demo first and learn the round with play money before any deposit.
Try the free demo first →Deposits and identity checks stay on the operator's own secure site.
More on this game, from the same section first:
Eleven builds, 96.70% down to 85.70%
39 of 40 games carry a win figure
High, shared by 24 of 40 games
Wild pays 25.00 at 0.50 stake
Empty feature list, 0 buy options
Mega tier pays x5000 of base bet
Readers mostly ask what the ranking actually measures and whether a leading score means a better casino. Answers below come from the sixteen criteria, from operator terms read on and from register entries opened by account number.
Disclosure measures how much each licensee publishes about this game and how much a register confirms. Quality of service, payout speed and library size stay out of it.
No, the top score means the fullest disclosure. Grosvenor Casinos leads at 9.2 because it publishes more and a register backs it, not because its service was tested.
We open the register by account number, read the licence and sanctions tabs, pull the operator's game page and terms, then record exact wording before scoring.
Two publish one, and both print 96.70%: MrQ on account 60629 and Grosvenor Casinos on account 57924. The remaining three print nothing usable.
Both brands run on Gamesys Operations account 38905, so the licence evidence underneath them is a single record and most criteria resolve identically.
No, free play needs age verification at a British licensee under LCCP 3.2.11. The studio's own site runs an open demo instead, with no account required.
PlayOJO scores 8.2. Its game page leaves restricted countries, the stake grid and the return unpublished or broken, which costs it across the Game group.
