Specifications · 29 October 2026 · 6 min read
Volatility is a number from 1 to 5. Here’s what each one feels like
Most sites print “High” and move on. The rating is an integer on a five-point scale, and the difference between a 2 and a 5 is the difference between two completely different games.
What the rating is
Volatility — variance, if you prefer — describes how a game delivers its return. It is published as a single integer on a five-point scale: 1 is the flattest, 5 is the most extreme. It is not a quality score and it is not related to RTP. A 1 and a 5 can return an identical percentage over their lifetimes while producing completely different sessions.
Where this site shows a rating it shows the scale with it — High (5/5), not High — because “high” on its own is meaningless when different studios use three-point, five-point and ten-point scales and all of them call the top end high.
How often it is published
Measured across the 19,137 playable demos in this catalogue, synced 2026-10-23.
1,997 of 19,137 demos here carry a published volatility rating — 10.4%. It is published less often than RTP, which is already sparse, and that is the single biggest reason slot sites write vague copy about “medium-high variance” instead of printing a number: for most games there isn't one.
Where the studio published nothing, the game page here says nothing. An invented volatility rating is a worse lie than an invented RTP, because it is unfalsifiable — nobody can check it against a certificate.
What each rating does to a session
1–2 · Low
Wins land on a large share of spins and stay small. The balance drifts rather than lurches. Long sessions on a small stake, rare disasters, and a low ceiling. 254 demos here are rated in this band.
3 · Medium
The compromise. Base game pays often enough to hold the balance roughly level, features land often enough to matter. 512 demos here sit at 3.
4–5 · High
Long dead stretches broken by occasional large wins. Most of the maths lives in the feature. 1,231 demos here — the biggest band of the three, because the bonus-buy era pushed studios upward.
The counts tell their own story: of the 1,997 games with a rating, 61.6% are rated 4 or 5. The modern catalogue is skewed hard towards the volatile end, which is a design trend, not a coincidence — a game with a huge advertised maximum win has to be volatile to afford it.
Why it matters more than RTP, day to day
RTP is the better number over a lifetime. Volatility is the better number over an evening. A one-point RTP difference changes your expected return by a rounding error across a few hundred spins; a volatility difference changes whether those spins are pleasant or grim.
It also governs how much a given balance buys. On a 5/5 game the features that carry the return can be hundreds of spins apart, so a bankroll that would last an hour on a low- volatility title can be gone before the game has shown you what it does. This is not a strategy tip — nothing changes the odds of any spin — it is simply what the rating means.
The demo is the test
Volatility is the one specification a free demo genuinely measures for you. A hundred spins on virtual credits will not tell you a game's RTP, and it will not tell you its maximum win. It will tell you, unmistakably, whether the base game pays enough to keep you interested and how long the dry spells run.
That is the honest use of a demo, and it costs nothing.
