RTP is the single most useful number for comparing casino games, and one of the most misunderstood. It does not tell you how much you will win today, and it is not a promise that you get your money back. It tells you how expensive a game is to play over time. Knowing how RTP works, how it is tested and why the same slot can have different RTPs at different casinos helps you pick better games and spot operators that quietly run the lower versions.
What does RTP actually mean?
RTP is the theoretical payout percentage of a game, calculated from its rules and paytable. For slots it is set by the developer's maths model, for table games it follows from the rules and assumes optimal play. A 96% RTP means that across all spins by all players, 96% of the money staked flows back as wins.
The other side of RTP is the house edge: 100% minus RTP. A 96% slot has a 4% house edge, a 97.3% European roulette wheel has a 2.7% edge. The house edge is the casino's average gross gaming revenue on each bet, before bonuses and costs.
How does RTP affect what you lose per session?
RTP applies to the total amount you bet, not to your deposit. This is why it matters more than most players think. Each euro is usually bet many times as wins are recycled into new spins.
Worked example: you deposit 100 EUR and play 1 EUR spins. If you play 500 spins, you have wagered 500 EUR. At 96% RTP your expected loss is 4% of 500 EUR, which is 20 EUR. On the 92% version of the same slot it is 40 EUR, double the cost for the same entertainment. Over a 3,500 EUR bonus wagering requirement, the difference is 140 EUR against 280 EUR.
Expected loss is an average. In any single session you can win or lose far more, which is the effect of variance and volatility rather than RTP.
The more you bet in total, the closer your result tends to move towards the house edge. Over 100 spins almost anything can happen. Over 100,000 spins, results across many players land very close to the stated RTP, which is how labs and operators verify it.
Why can the same slot have different RTPs?
Many providers release each slot with several certified RTP settings, for example 96.2%, 95.5%, 94.2%, 92% and lower. The casino operator chooses which version to run. The game looks and plays identically; only the probability of the bigger wins changes.
Some regulated markets set minimum RTPs or require that the figure is displayed, and some operators choose lower versions to raise their margin. This is legal, but a casino that runs low versions across its whole lobby is effectively more expensive. Many players never notice because the difference is invisible in a short session.
Providers usually list every available RTP version in a game sheet or on their website. If you know the top version of a slot is 96.5% and your casino shows 94%, the operator has picked a cheaper setting for itself. Comparing a few of your favourite games is the quickest way to judge a lobby.
Where do you find a game's RTP?
Open the slot, then open its info, rules or paytable screen (usually an "i" or menu icon). Licensed games state the theoretical RTP there, often in the last section of the rules. If several values are listed, the one that applies to the version you are playing should be marked, or shown as a single figure.
Check it while logged in with a real-money account, since the demo version may show a different setting. If a casino hides RTP information or the info panel shows no figure at all, treat that as a reason to play elsewhere.
- Open the game in real-money mode
- Click the info or paytable icon
- Scroll to the rules or general information section
- Note the stated RTP and compare it with the provider's maximum version
Who tests and guarantees RTP?
Independent labs such as eCOGRA, iTech Labs, GLI and BMM Testlabs test the random number generator and the maths of each game before it can be used in regulated markets. They verify that the game's theoretical RTP is correct and that results are random.
Regulators like the MGA and UKGC require certified games and audited RNGs. Some operators also publish monthly payout reports showing actual RTP across their games. For a single player the actual return will always differ from the theoretical one; the certified figure only holds over a very large number of rounds.
Games from major studios carry the same lab certificate wherever they are offered, because the studio certifies the game before release. What differs between casinos is the RTP version chosen and how strictly the regulator checks it, which is stronger under the MGA and UKGC than under lighter offshore licences.
What is a good RTP for slots and table games?
For online slots, 96% or higher is considered good, 94-96% is average and anything below 94% is expensive. Jackpot slots often have lower base RTPs, around 88-94%, because part of each bet feeds the jackpot.
Table games are often better value if you play them correctly. Blackjack with basic strategy can reach around 99.5%, European roulette is 97.3% and American roulette, with its extra zero, is 94.74%. Baccarat banker bets are about 98.9%. Live game shows vary widely, often 95-97%.
Small rule changes move table-game RTP a lot. Blackjack that pays 6:5 instead of 3:2 on a natural adds roughly 1.4% to the house edge. Roulette with the la partage rule returns half of even-money bets when zero lands, lifting those bets to about 98.65%.
- Slots: 96% and above is good, below 94% is expensive
- Progressive jackpot slots: often 88-94% base RTP
- Blackjack (basic strategy): around 99.5%
- European roulette: 97.3%; American roulette: 94.74%
- Baccarat banker bet: about 98.9%
Does RTP matter when you play with a bonus?
Yes, a lot. Wagering multiplies the total amount you bet, so a small RTP difference becomes a large cost. That is also why casinos often exclude very high-RTP slots and table games from bonus wagering, or let them count only 10-20%.
When clearing a bonus, use an eligible slot that counts 100% and runs a high RTP version. CasiScore's table on this page highlights casinos with fair terms, where game restrictions and weighting are clear before you claim. Whatever the RTP, every game has a house edge, so set a budget you are comfortable losing.
Is RTP the same as your chance of winning?
No. RTP says how much a game returns on average, not how often you win or how big the wins are. Two slots with 96% RTP can feel completely different: one pays small wins on every third spin, the other pays rarely but sometimes 5,000x. That distribution is volatility, a separate number.
Hit frequency, the share of spins that return any win, is another separate figure. A slot can have a 30% hit frequency and still lose money steadily because many of those hits pay less than the stake.
Win frequency, volatility and RTP together describe a game. RTP is the cost, volatility is the swing and hit frequency is the rhythm. Pick the RTP first, then choose the volatility that fits your budget.
Myths vs facts
- Myth: A 96% RTP slot pays back 96 EUR of every 100 EUR you deposit.
- Fact: RTP applies to the total amount wagered over millions of rounds. In one session you can lose your whole deposit or win many times it.
- Myth: A slot that has not paid for a while is due a big win.
- Fact: Each spin is independent and decided by a certified RNG. Past results do not change the next spin's odds.
- Myth: Casinos can change a slot's RTP during your session.
- Fact: Licensed games run certified versions with a fixed RTP. The operator picks a version in advance; it cannot adjust it spin by spin.
Quick checklist
- Check the RTP in the game's info panel before playing
- Prefer slots at 96% or higher
- Compare the casino's figure with the provider's top version
- Use high-RTP eligible slots when wagering a bonus
- Remember RTP is a long-term average, not a session forecast