How we rate slots
Every number on this site is meant to be checkable. This page explains exactly where the data comes from, how it is used to order rankings, and what we deliberately do not do. If a figure ever looks wrong, this is the method you can hold it against.
Where the data comes from
RTP and volatility figures are taken from the game providers’ own published information — official game sheets, in-game help screens and provider fact pages — and cross-checked against public game databases. Where an operator is known to run a configurable, lower-RTP build of a game, that is noted on the relevant page rather than hidden, because the same title can ship at several different RTP settings.
Volatility is trickier: not every provider publishes a formal rating, and the labels (low, medium, high) are not standardised across studios. Where a provider states a rating we use it; where it does not, the field is marked as not available rather than guessed. We would rather show a gap than invent a number.
How rankings are ordered
Ranked lists — including the RTP database and the best-of lists — are ordered by published payout and, where relevant, volatility. Ordering is never sold. There are no paid placements, and because the site launches editorial-only, there are no affiliate links influencing any list. When two games share an RTP, the lower-volatility title is listed first, since it stretches a bankroll further over the same number of spins.
How often the numbers change
The dataset is rebuilt on a schedule rather than edited by hand, so a figure you read here matches the most recent rebuild rather than a one-off manual update. Any list that carries a month stamp is telling you when it was last refreshed. If a provider revises a game’s RTP, that change is picked up at the next rebuild and every page that references the game updates at once — there is no separate list to keep in sync.
Why payout leads every list
Most slot sites lead with bonus offers, because that is where the commercial incentive sits. This one leads with published payout because, over any meaningful number of spins, return to player is the single figure that decides how far a bankroll goes. A generous-looking bonus attached to a low-RTP game costs a player more over time than no bonus on a high-RTP one, so ordering by payout is simply the more honest starting point.
It is also the more checkable one. A bonus headline is a marketing claim; a published RTP is a number the provider stands behind and a reader can look up independently. Building every ranking on that number keeps the method transparent from top to bottom — there is nothing in the ordering that a reader cannot trace back to a source.
How volatility is handled
RTP is a single published percentage, but volatility rarely is. Some studios give a formal rating, some describe it only in words, and the low/medium/high labels are not standardised between them — a “medium” from one provider can behave like a “high” from another. Rather than force every game onto one scale, we use the provider’s own stated rating where it exists and mark the field as not available where it does not. That keeps the volatility column honest even though it is less tidy than a made-up number would be, because a guessed rating is worse than a visible gap.
Reading a slot’s entry
Each game in the database shows only what can be sourced: the provider, the published return to player, a volatility rating where one exists, and structural facts such as reel setup or a Megaways mechanic. There are no star ratings, no scores out of ten and no editorial “verdict”, because those compress checkable facts into an opinion. If a figure carries a caveat — a configurable RTP, a disputed source — the entry says so in plain words rather than smoothing it over. The aim is that a reader can reconstruct why a game sits where it does without taking anything on trust.
How you can check the numbers
Because every figure comes from a public source, every figure is one you can verify. A provider’s game sheet, help screen or fact page is usually a short search away, and where a second public database lists the same game you can compare the two. If you find a number here that disagrees with the provider’s current published figure, it is a mistake to report, not a house position to argue with — and it will be corrected at the source so every page that uses it updates together.
What we don’t do
We do not invent bonus amounts, promise winnings, or present modelled figures as real-world results. Our data studies clearly state their method and assumptions, and they are labelled as models, not measurements. Slots are entertainment, not a way to make money — see our responsible gambling page for the plain version of why.