Karen Maneater

What these figures mean for Karen Maneater

Karen Maneater has a volatility index of 36.42 and a top prize of 11,757x. Both numbers come from Nolimit City, and the pairing is unusual enough to be worth explaining, because the studio's other releases do not look like this. In this catalogue, Mental tops out at 66,666x, Misery Mining at 70,000x and Tombstone R.I.P. at 300,000x. Karen Maneater is the game where a very high dispersion index sits above a ceiling that, by the standards of this studio, is modest. The question that makes it interesting is where the variance comes from if not from the top prize — and the published figures answer it.

Start with how often anything happens. The hit frequency is 24.58%, so roughly one spin in four returns something; in the studio's own portfolio that is generous, well above the 9.08% of Tombstone R.I.P. and closer to a NetEnt profile than a Nolimit one. A game that pays on a quarter of its spins and still measures 36.42 on the dispersion index is not getting its variance from drought. It is getting it from the size of what arrives when the bonus does.

The split says the same thing. Nolimit City publishes 55.59% as the base-game return and 40.41% as the bonus return, out of 96% overall. So more than four tenths of everything this game gives back is inside the free-spins round, and that round comes once in 204 spins on the studio's figure. The base game, taken alone, returns a little over 55p in the pound. That is the machine you are playing most of the time, and the arithmetic — ours, from their two numbers — is that about 500 spins at £1 will see the bonus roughly twice while the other 498 spins run at a return that would be unacceptable if it were the whole game.

Where this game is genuinely different from its stablemates is the reachability of its ceiling. The maximum win lands once in 330,000 spins. Tombstone R.I.P., with the same split and a return eight hundredths of a point higher, needs 130,000,000 spins for its maximum — 394 times as many. At £1 a spin and 600 spins an hour, 330,000 spins is around 550 hours of play: a lot, but a number that describes something a persistent player could plausibly reach once. The 11,757x ceiling is lower, but it is not decorative. That trade — a smaller top prize you might actually hit, against a huge one you will not — is the clearest example in this catalogue of why two games with the same RTP are not the same product, and it is visible only because this studio publishes maximum-win odds at all. Most do not.

The middle of the range is where the 36.42 index shows its teeth. A win of 100x or better arrives once in 755 spins. Set that against the 24.58% hit frequency and the shape becomes clear: a quarter of spins return something, but a meaningful outcome is still a once-in-750-spins event, which means the great majority of those frequent hits are small — fractions of a stake, not multiples of it. The frequent small returns slow the decline of a balance; they do not change the direction of it. That is exactly what a high index above a quarter-chance hit rate looks like in practice, and it is why "pays often" and "pays well" are different claims.

The feature buy deserves a note, and one correction to an easy assumption. This game sells a buy, and buying it skips the 204-spin wait for the round that holds 40.41 points of return. It would be tidy to say the base game here is the kinder one, but the published figures say otherwise: at 55.59% it is the lowest base return of any game in this catalogue that splits its RTP, fractionally below the 55.99% of Tombstone R.I.P. and well below the 61.07% of Misery Mining. The thing that makes this game less punishing is not a better base — it is that the bonus is reached at the same rate while the ceiling above it is 394 times closer. We have not checked the price of the buy at any operator, and the price is set in the game client rather than in the specification, so we are not going to quote a figure or call the trade good or bad. What the published numbers support is narrower: the buy converts a 204-spin average wait into an immediate event, and nothing more than that.

There is a second reason this game is worth singling out, and it has nothing to do with its maths. Nolimit City states the odds of its maximum win. Hacksaw, whose four titles here all run a 5-of-5 or similar volatility label, states no maximum-win odds at all, and neither does NetEnt for Blood Suckers or Starburst. So when this game's ceiling turns out to be 394 times more reachable than Tombstone R.I.P.'s, that comparison is only possible because one studio publishes a figure the others keep. For most games on this site the honest answer to "how often does the top prize land?" is that nobody outside the studio knows.

The summary, then, is a game that trades the lottery ticket for something closer to a long bet. It pays on a quarter of its spins, runs the lowest base-game return in this catalogue, holds four tenths of everything it gives back behind a round that arrives every two hundred spins, and tops out at a figure a persistent player might genuinely reach once in 550 hours. Whether that trade appeals is a matter of taste. That you can evaluate it at all, rather than guess, is down to disclosure — and it is the reason this specification is worth more than the 96% at the top of the page.

What the studio publishes about the maths

Figures Nolimit City states for Karen Maneater itself — not our estimates.

How Karen Maneater compares with the rest of our catalogue

Against every other game here whose studio publishes its maths.

Volatility as the studio states it — what the index measures. Nolimit City lists this title as certified for UKGC.