Slots
Slots are the most common game type at UK online casinos. They are powered by random number generators (RNGs), which are tested and certified by independent labs (e.g. eCOGRA, iTech Labs) to ensure outcomes are random and fair. Each slot has a published return-to-player (RTP) percentage—the proportion of stakes the game is designed to return over the long term. For example, 96% RTP means that over millions of spins, the game returns £96 for every £100 wagered. RTP is not a guarantee for a single session; it is a statistical expectation.
UK casinos source slots from providers such as NetEnt, Microgaming, Pragmatic Play, Evolution, and Red Tiger. The range includes classic three-reel games, video slots with multiple paylines and bonus features, and progressive jackpots. Always check the game’s info or paytable for RTP and rules. Licensed operators must offer games that meet UKGC standards for fairness and transparency.
Live dealer games
Live dealer (live casino) games use real croupiers streamed from studios. You place bets via the same software; the dealer deals cards or spins the wheel in real time. The result is determined by the physical action (e.g. the roulette ball, the dealt cards), not by a digital RNG for the main outcome. Card games use real decks; the shuffle and deal are filmed. This does not mean the games are “more fair” than RNG games—both are regulated and audited—but some players prefer the social feel of live play.
Evolution and Playtech are leading live dealer providers in the UK. You will find live blackjack, roulette, baccarat, and game-show style titles. RTP for live games is typically published in the game rules (e.g. house edge for blackjack with a given rule set).
Blackjack
Blackjack is available as an RNG table game and as a live dealer game. The aim is to get closer to 21 than the dealer without going bust. Rules vary by table: number of decks, whether the dealer stands or hits on soft 17, and payout for blackjack (e.g. 3:2 or 6:5). These rules affect the house edge and thus the effective RTP. UK-licensed sites must state the rules clearly. Basic strategy (when to hit, stand, double, split) is based on mathematics and can reduce the house edge to around 0.5% or less on favourable rule sets. Never expect to win every session; the house always has a small edge over time.
Roulette
Roulette comes in RNG and live versions. You bet on numbers, colours, or groups; the ball lands in a numbered pocket. European roulette (single zero) has a lower house edge than American (double zero). RTP for European roulette is typically about 97.3%. The game is purely chance—no strategy can overcome the house edge in the long run. UK sites offer European, American, and sometimes French roulette; check the rules and RTP in the game info.
Fair play and RNG
All games at UKGC-licensed casinos must meet strict fairness standards. RNG games use certified software; live games use real equipment and filmed outcomes. Operators and their game providers are subject to audit. If you want to dig deeper, look for eCOGRA or similar seals and the published RTP in the game. Gambling should be entertainment; set limits and play responsibly. For help and self-exclusion, see Playing safely and getting help. You must be 18 or over to gamble in the UK.