What RTP Means
RTP stands for Return to Player — the percentage of all money wagered on a casino game that is paid back to players over a very large number of plays. A slot with a 96% RTP returns €96 for every €100 wagered in aggregate across millions of spins. The remaining 4% is the casino's mathematical advantage, known as the house edge. These two figures always add up to 100%: a 96% RTP equals a 4% house edge. RTP is a theoretical, long-run figure calculated from the game's mathematical design and verified by independent testing laboratories — it is not a promise that you will get back 96% of your money in any given session.
Typical RTPs by Game Type
| Game | Typical RTP | House Edge | Notes |
|---|---|---|---|
| Slots (online) | 94%–97% | 3%–6% | Varies widely by title; check info screen |
| Blackjack (basic strategy) | ~99.5% | ~0.5% | Rule set and strategy both affect RTP |
| European Roulette | 97.3% | 2.7% | Single zero; fixed by game structure |
| American Roulette | 94.7% | 5.3% | Double zero; worse for the player |
| Baccarat (banker bet) | ~98.9% | ~1.06% | After the standard 5% commission on wins |
| Video Poker (Jacks or Better, optimal) | 99.5% | 0.5% | Requires near-perfect strategy |
The figures above assume correct play for skill-based games. Blackjack played without basic strategy can have a house edge several times higher than 0.5%. Slots RTPs are set by the provider and certified — no skill element applies.
Why Your Session Won't Match the RTP
The most important thing to understand about RTP is that it only emerges over millions of plays. In a session of 200 slot spins or 100 blackjack hands, your actual result can deviate enormously from the theoretical percentage. You might triple your money or lose everything — both outcomes are entirely consistent with a game's published RTP. This is not a quirk or a flaw; it is simply how probability works with relatively small sample sizes. The house edge does not manifest session by session. It accumulates across all players across all plays. For you as an individual player, any single session is volatile. This is also why volatility matters alongside RTP: a high-volatility slot delivers its 96% RTP in a very different pattern than a low-volatility slot with the same figure.
Where to Find Published RTPs
For slots, the RTP is usually published in the game's information or paytable screen (the "i" button). Reputable providers such as NetEnt, Play'n GO, Pragmatic Play and others publish RTP in their game documentation. Third-party databases and slot review sites also aggregate verified RTPs. For table games, RTP is determined by the game rules and, for skill-based games, the strategy used — the figures are well documented and consistent across providers using the same rules. Some online casinos also publish overall site RTP in their transparency reports; look for a "fairness" or "RTP report" section in the casino's footer or help pages.
RTP, GRAI and Game Fairness in Ireland
The Gambling Regulatory Authority of Ireland (GRAI) has not yet issued online casino licences — zero have been issued as of November 2026. When Irish casino licences are introduced (expected 2027–2028 under the Gambling Regulation Act 2024), the framework is expected to include game fairness and RTP transparency standards. Currently, online casinos accessible from Ireland operate under overseas licences — primarily Malta (MGA) or Gibraltar — which require games to be certified by approved independent testing labs (such as eCOGRA, GLI or BMM). These certifications verify that the game's RNG (Random Number Generator) produces genuinely random results and that the published RTP is accurate. Our recommended online casinos all hold current MGA or Gibraltar licences. If gambling stops being fun: Gambling Awareness Trust, 1800 753 753, gamblingcare.ie. 18+ only.
Frequently Asked Questions
RTP (Return to Player) is the percentage of all money wagered that a game returns to players over millions of plays. A 96% RTP means €96 returned per €100 wagered in aggregate. The remaining 4% is the house edge. It is a long-run average, not a guarantee for any single session.
Most online slots have RTPs between 94% and 97%. Anything above 96% is considered good. Always check the game's info screen before playing, as RTPs vary significantly between titles.
No. RTP is calculated over millions of plays. In any individual session, your actual result can deviate enormously from the theoretical RTP. The long-run average only emerges over very large numbers of plays.
Blackjack with basic strategy has an RTP of approximately 99.5% (house edge ~0.5%). Without basic strategy the house edge rises significantly. Rule sets also affect the figure.
GRAI has not yet issued online casino licences (expected 2027–2028). Currently, online casinos accessible from Ireland operate under overseas licences (MGA, Gibraltar) which require RTP certification from approved independent testing labs.