How casino games are priced
Every casino game has a published price, and it is not the stake. It is the house edge: the proportion of everything wagered that the operator keeps over a long enough run. Knowing the edge on each game tells you more than any strategy article, because the edge is the one number that does not change with how you feel about it.
The house edge, game by game
| Game | Condition | House edge |
|---|---|---|
| European roulette | Single zero | 2.70% |
| American roulette | Double zero | 5.26% |
| Blackjack | Liberal rules, correct basic strategy | Around 0.5% |
| Baccarat | Banker bet | 1.06% |
| Baccarat | Tie bet, paid 8:1 | Above 14% |
| Online slots | Typical published range | 2% to 8% |
Two things stand out. The gap between single-zero and double-zero roulette is nearly a factor of two for a game that looks identical at the table. And the baccarat tie bet, which pays the largest headline odds on the table, is among the worst prices in the building.
RTP is the same number, inverted
Return to player is one hundred per cent minus the house edge. A slot advertised at 96% RTP has a 4% edge. The figure is a long-run theoretical average calculated over millions of simulated spins, not a promise about a session, and the same game is frequently supplied to operators in several RTP configurations, so the version you are playing may not be the version reviewed elsewhere. The information panel inside the game states the one in use.
Variance is what you actually experience
Two slots with identical RTP can behave completely differently. A low-variance game pays small amounts often; a high-variance game pays rarely and large. Over an infinite run they return the same; over an evening they produce entirely different experiences and entirely different chances of losing a bankroll before anything happens.
This is why the headline percentage is a weak guide on its own. Variance determines how long a given balance lasts, and therefore how much total wagering the edge gets applied to.
Where skill exists and where it does not
Blackjack is the one common game where decisions change the edge, and correct basic strategy is the difference between roughly half a per cent and several per cent. Video poker has a similar structure. Everything else (roulette, baccarat, craps outside a couple of bets, and every slot) is fixed the moment the stake is placed.
No betting pattern alters a fixed edge. Progressions such as the martingale change the shape of the outcome distribution, making many small wins and rare very large losses, but the expected value is unchanged and the table limit is what eventually settles it.
Questions about house edge and RTP
What is the best value game in a casino?
Blackjack played with correct basic strategy under liberal rules, at well under one per cent. Baccarat's banker bet is the best option requiring no decisions.
Does a higher RTP slot pay out more often?
Not necessarily. RTP describes the long-run return; how it is distributed is variance, and the two are independent.
Can a betting system beat the house edge?
No. Systems redistribute outcomes; they do not change expected value on a game with a fixed edge.