What RTP measures
Return to player (RTP) is a theoretical proportion of wagered value paid back over an extensive model of repeated gameplay, typically expressed as a percentage. The complement is a theoretical house edge when the figures use the same accounting basis. RTP does not describe a minimum payout for a person.
A worked example
Suppose a slot’s documented theoretical RTP is 96%. Across an illustrative total wagered volume of $100,000, the theoretical return associated with that figure is $96,000 and the theoretical difference is $4,000. This is a mathematical illustration—not a forecast, guarantee or achievable target for any finite session.
A player who wagers $100 is not entitled to receive $96. Realized outcomes vary, and any given session may lose much more or return more than the amount staked.
Why RTP values differ
Some games offer different mathematical configurations in different deployments. Publisher pages, casino help screens and outdated reviews can list different percentages. Verify the exact configuration, date and source rather than averaging them together.
RTP and volatility are not the same
Two games may have similar theoretical RTP but very different distributions of prizes. Volatility addresses variability of outcomes; RTP describes an expectation. Neither predicts the next spin.
How to audit a claimed RTP
Find the official game help or information panel, check the release/version, record the number as attributed rather than universal, and avoid describing an unverified percentage as “current.”
For a publisher-published example, see Starburst.