Return to player is the theoretical percentage of stakes a game returns as prizes over a sufficiently large number of rounds. House edge is commonly the remaining percentage.
Theoretical RTP is a long-run model
A 96% theoretical RTP does not mean each player receives 96 units from every 100 staked. Short sessions can finish far above or below the model because outcomes vary.
The game rules, bet type and optional features determine which RTP applies. One provider can offer different configurations of a similar game.
Actual RTP needs a large sample
Actual RTP divides recorded wins by turnover for an observed sample. It can differ substantially from theoretical RTP when the number of rounds is limited.
As the sample grows, expected tolerance narrows. A personal session is not a statistically meaningful fairness test by itself.
RTP and volatility answer different questions
RTP describes expected long-run return. Volatility describes how unevenly results may arrive. Two games can share an RTP while producing very different session experiences.
High volatility can create long losing sequences and occasional large wins. Lower volatility generally distributes outcomes more evenly, without creating a profit guarantee.
Duel Originals and 100% RTP
Eligible Duel Originals modes offer genuine 100% theoretical RTP and zero house edge. Some use availability gaps that prevent continuous unlimited play at that setting.
The claim does not apply to every Duel game, third-party slot, live dealer product or side bet. It also does not remove short-term variance or guarantee profit.