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99% RTP names a game designed to return 99% of what is staked as prizes over a very large number of plays. It is not a session figure and it is not a compensated game. The Gambling Commission's pages read on 21 September 2026 name no such slot, and this entry names none.
Read What slot has 99% RTP?: definition, and the term it is confused with
Eight short entries separate measures of spread, averages, returns and probabilities. Each definition stays brief and points to the appropriate longer explanation.
Read Volatility, variance and the words around a game’s statistics
Short paired definitions for promotion wording: the amount wagered, the requirement, the deadline, the qualifying game and the restriction are different fields.
Read Wagering, turnover and the other bonus words that need separating
Twelve interface phrases from casino accounts — pending, self-excluded, verification required, bonus balance and more — defined in under 300 words each, each pointing to the site that documents the rule behind it.
Read What your casino account messages mean: a decoder
Imagine an educational example with a £10 stake and an advertised settlement of £18 including that original stake.
Read Return is not the same as profit| Title | Type | Filed under | Sources | Checked | Open |
|---|---|---|---|---|---|
| What slot has 99% RTP?: definition, and the term it is confused with | Article | Casino terminology | 3 | Read What slot has 99% RTP?: definition, and the term it is confused with | |
| Volatility, variance and the words around a game’s statistics | Article | Casino terminology | 6 | Read Volatility, variance and the words around a game’s statistics | |
| Wagering, turnover and the other bonus words that need separating | Article | Casino terminology | 7 | Read Wagering, turnover and the other bonus words that need separating | |
| What your casino account messages mean: a decoder | Guide | Casino terminology | 10 | Read What your casino account messages mean: a decoder | |
| Return is not the same as profit | Article | Casino terminology | 1 | Read Return is not the same as profit |
The most frequent is reading RTP as a session figure: the Commission's page says an 85% machine should not be expected to return 85 pence per £1 during a playing session. RTP is the long-run share; volatility is the spread of a short run around it.
From What slot has 99% RTP?: definition, and the term it is confused with
They are the two halves of the same stake: RTP is the share designed to be returned as prizes over a very large number of plays, and the house edge is the remainder. At 99% RTP the edge is 1%, £0.10 on a £10 stake.
From What slot has 99% RTP?: definition, and the term it is confused with
In the game's own information, read on the day; no page read for this entry publishes a list. The Commission's testing strategy requires new products to be tested by an approved test house before release, which is the assurance behind the stated figure, not a directory of figures.
From What slot has 99% RTP?: definition, and the term it is confused with