RTP (return to player)
RTP, or return to player, is the share of all money staked on a casino game that the game is designed to pay back to players over a very large number of rounds. A slot listed at 96% returns, in theory, €96 for every €100 wagered across millions of spins. It is a long-run average built into the game’s maths, so it says nothing reliable about one evening’s session.
How RTP is worked out and shown
For a slot, the studio calculates RTP from the full paytable: every possible outcome is weighted by its probability, and the expected payouts are added up and divided by the stake. Testing labs then simulate very large numbers of rounds to confirm the game behaves as its maths claims.
The player meets the figure in the game’s information or help panel, which is where the version actually running at that casino is shown.
That panel matters because many studios release one title in several certified RTP versions, commonly around 96%, 94% and 92%, with some ladders reaching down near 84%. The casino picks which build to stock, and the game looks identical whichever is chosen. Practice varies by studio: some publish a single figure for every title, while others offer a tier for each margin an operator might want.
Over €500 of total stakes, a 96% build has an expected return of €480 and a 94% build €470, though any single session can land far from either.
RTP compared with house edge
House edge is the term RTP is most often confused with, and the two are really one number seen from opposite sides. The roulette figures below are the standard single-zero and double-zero values.
RTP | House edge |
|---|---|
| Share of stakes paid back to players | Share of stakes kept by the game |
| European roulette: 97.3% | European roulette: 2.7% |
| American roulette: 94.74% | American roulette: 5.26% |
| Usual label on slots | Usual label on table games |
What RTP does not tell you
RTP is not a payout promise for any one player, and it does not make a slot that has been quiet more likely to pay soon. Each spin is decided independently by the random number generator, so a machine is never “due”.
It is also separate from volatility, which describes how wins are spread out: two games at the same RTP can feel completely different, one paying small amounts often and the other rarely but in large sums.
One short session proves nothing.
