Key takeaways
- Every casino game has a built-in house edge; the size of it varies a lot between games and bets.
- European roulette's edge is 2.70%, American roulette's is 5.26%.
- Blackjack played with basic strategy has one of the lowest edges, at around 0.5% under typical rules.
- The £5 and £2 stake limits apply to online slots only, not to table games.
The main casino games at a glance
Slots
The biggest category by far: thousands of games, each with its RTP in the rules.
Roulette
European, French and American wheels, online and live.
Blackjack
The table game where your decisions matter most.
Live casino
Real dealers streamed from studios, plus game shows.
House edge: what each game costs you
Every casino game is built so that, over a long run of bets, the casino keeps a share of what's staked. That share is the house edge. Slots express the same idea as return to player (RTP): a slot with 96% RTP has a 4% house edge. The edge doesn't tell you what will happen in one session, but it does tell you which games and bets cost the least over time.
| Game and bet | House edge | Why |
|---|---|---|
| European roulette (single zero) | 2.70% | 37 pockets, one zero |
| French roulette, even-money bets with La Partage | 1.35% | Half your even-money stake back when zero lands |
| American roulette (double zero) | 5.26% | 38 pockets, two zeros |
| Blackjack, basic strategy, typical rules | Around 0.5% | Varies with the number of decks and dealer rules |
| Baccarat, banker bet | 1.06% | After the usual 5% commission |
| Baccarat, player bet | 1.24% | |
| Baccarat, tie bet paying 8:1 | 14.36% | One of the worst bets in the casino |
| Online slots | Typically 3% to 6% | RTP of around 94% to 97%, shown in each game's rules |
Two lessons stand out. First, the same game can carry very different edges depending on the version or bet: an American roulette wheel costs you nearly twice what a European one does, for exactly the same bets. Second, skill matters in blackjack and almost nowhere else, because your decisions change the odds. Everywhere else, the only choice that affects your expected cost is which bet you make.
Lower is better for the player. Blackjack figure assumes basic strategy and typical rules.
Slots
Online slots make up most of any UK casino's library. Each slot states its RTP in the game rules, and many games are released with several RTP settings, so the same title can run slightly differently at different casinos. Slots in Great Britain are capped at £5 a spin for players aged 25 and over, and £2 a spin for 18 to 24-year-olds. See our guide to the best UK slot sites and our stake limits guide.
Roulette
Roulette is pure chance: a ball, a wheel and a choice of bets. The type of wheel matters more than any betting system. A European wheel has one zero and a 2.70% edge; an American wheel adds a double zero and the edge nearly doubles. French roulette can be even better on even-money bets thanks to La Partage. Our online roulette guide covers every version and bet.
Blackjack
Blackjack is the classic game of skill and chance. Played with basic strategy, a simple chart of the best decision for every hand, the house edge falls to around half a percent under common rules. Rule changes, such as a blackjack paying 6:5 instead of 3:2, push it up sharply. Read our online blackjack guide.
Baccarat
Baccarat asks you to back the banker, the player or a tie. The banker bet has the lowest edge, about 1.06% after commission. The tie bet usually pays 8:1 and carries an edge of over 14%, which makes it one of the costliest bets on the casino floor.
Live casino and game shows
Live casino streams real dealers from studios to your screen. You'll find live roulette, blackjack and baccarat, plus game shows built around money wheels and multipliers. Live games use the same rules, and the same house edges, as their digital versions, but play at a human pace. See our live casino guide.
Where you can play
| Casino | What you can play | Welcome offer |
|---|---|---|
 Ladbrokes | Slots, table games and live casino | Bet £10, get up to 500 free spins |
 Coral Casino | Slots, table games, live roulette and live blackjack | Bet £10, get 100 free spins |
 PlayOJO | Slots, table games, live casino, bingo and Slingo | No-wagering free spins on your first deposit |
 Casumo | Slots, jackpots, table games and live casino | 50% match bonus up to £100 |
 10Bet Casino | Slots, table games and live casino, alongside a sportsbook | 100% bonus up to £25 |
Most UK welcome offers can only be used on slots. If you mainly play table or live games, choose a casino for its games and payments rather than its welcome bonus. Compare every offer on our casino bonuses hub.
UK rules that apply to every game
- You must be 18 or over, and the casino must verify your age and identity before you play.
- Credit cards can't be used for gambling.
- Casinos must offer deposit limits, time-outs and self-exclusion, and take part in GAMSTOP.
- Slot stake limits apply to slots only.
How we chose these casinos
Every casino on this page holds a UK Gambling Commission licence, confirmed on the public register. We read each welcome offer against the casino's own terms, and we only state game, payment or withdrawal details that the casino publishes or that independent sources agree on. Our full method is on the how we rate page, and our sourcing rules are in the editorial policy.
Keep it a game
Table games feel slower than slots, but sessions still add up. Decide your budget before you sit down, never increase stakes to win back losses, and use the deposit limits and reality checks every UK casino must offer. The National Gambling Helpline is free, 24/7, on 0808 8020 133. More support is on our responsible gambling page.
Frequently asked questions
Which casino game has the best odds?
Blackjack played with basic strategy has one of the lowest house edges, around 0.5% under typical rules. Among pure-chance games, the banker bet in baccarat (about 1.06%) and even-money bets in French roulette with La Partage (1.35%) are among the cheapest.
Which casino game has the worst odds?
Among common bets, the baccarat tie bet (over 14%) and American roulette (5.26%) are poor value. Jackpot slots also tend to have lower base-game RTP.
Do stake limits apply to roulette and blackjack?
No. The £5 and £2 limits in Great Britain apply to online slots only.
Can I use a welcome bonus on table games?
Most UK welcome offers on ir4 are for slots only. Check the game rules in each offer's terms.