Mental

What these figures mean for Mental

A volatility index of 29.93 with a hit frequency of 34.19% should not be possible, and Mental is the game that shows what it looks like when a studio builds it anyway. Only two games on this site are measured as more dispersed — Tombstone R.I.P. at 66.85 and Karen Maneater at 36.42 — and both pay far less often, on 9.08% and 24.58% of spins. Among everything in this catalogue, only three games pay more frequently than this one, and all three are mild by comparison: Blood Suckers at an index of 2.7, Gonzo's Quest at 6.7, Deadwood at 16.77.

So you have a game returning something on a third of spins while measuring four and a half times more dispersed than Gonzo's Quest, which pays at almost the same rate. Everything that separates them is in the size of what lands. The published split starts to explain it: 58.16% from the base game, 37.93% from the bonus, out of 96.08%. Nearly four tenths of the return is behind a round that arrives once in 216 spins, and the third of spins that pay in between are handing back small change against a feature that holds the real money.

The 100x figure is where this game is genuinely unusual for its class. A win of a hundred times stake or better comes once in 831 spins — third-best in this catalogue, behind only Das xBoot at 635 and Karen Maneater at 755, and well ahead of Misery Mining at 1,251 or Punk Rocker at 1,789. A game this dispersed has no business having a reachable middle, and this one does. Combine the three numbers and the shape is specific: frequent trivial returns, a meaningful win roughly every 830 spins, and a bonus round every 216 — which is to say the bonus arrives about four times for every 100x win, so most bonus rounds do not reach three figures.

The ceiling is 66,666x and Nolimit City states the odds: once in 18,000,000 spins. At six seconds a spin that is around three and a half years of continuous play — far out of reach, but the third-shortest such figure among the big-ceiling games here, behind Fire in the Hole xBomb at 2,350,000 and Dead Canary at 7,000,000. Set against Tombstone R.I.P.'s 130,000,000 for 300,000x, the pattern across this studio's range holds: the bigger the advertised multiplier, the more disproportionately the odds recede.

Translated into a session: a thousand £1 spins produce around 342 paying spins, about four or five bonus rounds, and — on the 831-spin figure — one win of 100x or better, give or take. So roughly 341 of the 342 returns are below a hundred times stake. That ratio is the honest description of what a 29.93 index does to a game that pays as often as this one, and it is worth holding next to the 66,666x on the paytable.

What makes the specification worth reading rather than skimming is that all four of those figures come from the studio. The index, the hit rate, the split, the 100x odds and the maximum odds are all stated by Nolimit City for this title. For any NetEnt game on this site — Steam Tower, Twin Spin, Jack Hammer — the equivalent list runs to two or three numbers, and the ones that describe how often a win worth having arrives are absent entirely. This game can be analysed; most cannot.

The feature buy follows the pattern of the studio's range and the 216-spin wait is among the shorter ones, so it saves less than a buy on Punk Rocker's 244-spin average out of a far meaner base. We have not checked prices at any operator — the cost sits in the game client — so the structural note is all there is.

The summary: the most frequently-paying game among the genuinely extreme ones, with a reachable middle that games of this dispersion do not usually offer, and a ceiling whose own published odds put it three and a half years away. If the appeal of a high-volatility slot is the chance of something substantial inside a session rather than inside a lifetime, the 831-spin figure is the one to look at, and on this site only two games beat it.

What the studio publishes about the maths

Figures Nolimit City states for Mental itself — not our estimates.

How Mental 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.