Does RTP change between casinos?

The same name is not the same game

Return to player is the share of everything wagered that a game pays back over the very long run. A 97% RTP means that across millions of rounds, the game returns £97 for every £100 staked and keeps £3. It is the single most important number attached to any casino game, and it is the one most people never look up.

What almost nobody realises is that the number is not always fixed to the title. Many studios ship a game with several return configurations built in, and the operator chooses which one to run. Two casinos can therefore offer what looks like an identical game — same name, same graphics, same features, same provider logo — while one quietly returns several percentage points less than the other.

Why operators are allowed to do this

It is worth being clear at the outset: this is not cheating, and it is not a secret within the industry. Configurable RTP is a standard commercial feature. A studio builds a game with, say, four certified maths models at different returns, each independently tested, and licenses the set. The operator picks one according to its margins, its market, its bonus costs and its regulatory obligations. Every version is legitimate and every version has been through certification.

The problem is not legality, it is disclosure. Nothing in the lobby tile tells you which configuration is loaded. The game's own marketing quotes the headline figure — usually the highest available — and review sites, affiliate pages and comparison tables all repeat it, because that is the number the studio publishes. By the time the information reaches you it has been detached from the venue it applies to.

Some regulated markets require the running RTP to be shown in-game, which is why the figure is often easier to find at a licensed local operator than at an offshore one. But the general rule holds: the number you read on a game's official page is the default, not a promise about the copy in front of you.

What a few percentage points actually cost

The gap between 97% and 94% sounds trivial. Stated as house edge it stops sounding trivial: 3% against 6%. The casino's take doubles. Everything about the game looks the same while it removes money from you twice as fast.

The final column is the one that lands. Because you re-stake what you win, a bankroll does not simply shrink by the house edge once — it churns through the game repeatedly, paying the edge on every pass. A hundred pounds at a pound a round lasts roughly 3,300 rounds at 97% and roughly 1,700 at 94%. Same game, same stake, same starting money, half the playing time. That is what the three points buy the operator, and it is invisible while it happens.

But don't blame RTP for a bad night

Configurable returns are real, which unfortunately makes them a convenient explanation for outcomes that have nothing to do with them. If you lose ten rounds in a row, that is not evidence of a lowered RTP. It is not evidence of anything.

RTP is a long-run figure and the long run is genuinely long — millions of rounds, not an evening. Over a single session, variance dominates so completely that a 94% game and a 97% game are statistically indistinguishable from the inside. You cannot feel the difference, you cannot detect it from your results, and no amount of session tracking will surface it. The only way to know is to read the number, which is precisely why reading it matters.

How to actually check

The reliable source is the game itself, not the casino's marketing and not a review site. Open the game — demo mode is fine — and find the menu, usually a hamburger or gear icon in a corner. Look for Rules, Game Information, Paytable or Help. The RTP is normally stated in the first or last screen of that section, often alongside the maximum win and the provider's name.

If the figure is not there at all, that is itself useful information. A venue that will not tell you its return has made a choice about how much it wants you to know, and the sensible assumption is not that it is running the generous configuration. Where you can find it, compare the same title across two or three operators before committing a bankroll to one — it takes a couple of minutes and it is the single highest-value check available to a player, far more consequential than any strategy.

The Aviamasters case, and the general rule

BGaming publishes 97% for Aviamasters 2 (opens in a new tab), which is genuinely strong for the category and one of the better returns you will find in a casual title. The studio does not advertise alternative configurations. But at least one third-party listing shows the game across a range rather than at a fixed figure, and Spribe's Aviator — also a 97% default — is commonly listed by reviewers at lower returns at some venues. We cannot confirm from public sources what configurations exist or which operators run them, and neither can any other site quoting a number at you.

Which is the whole point. The honest position is not “this game returns 97%” but “this game's default is 97%, and yours might not be.” That distinction costs nothing to hold and is worth real money over a season.

One last thing worth separating out. A game can be provably fair and still be running a reduced return — the cryptography verifies that individual rounds were not tampered with, and says nothing whatsoever about the payout percentage behind them. Those are two different checks, and doing one does not cover the other.

The figures in the table are expected values before variance and assume flat stakes; real sessions differ widely. RTP configurations available to operators vary by provider, title and jurisdiction, and this article does not assert that any named operator runs a reduced return. Always read the in-game information screen where you play. Real-money gambling is for players aged 18 or over — please gamble responsibly.