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Casino Glossary

Common casino terms, explained simply.

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Wagering requirement

How many times you must bet a bonus before you can withdraw winnings from it (e.g. 35x). Lower is better.

RTP (Return to Player)

The long-term percentage a game pays back, e.g. 96%. Higher is generally better for players.

Volatility / Variance

How a slot pays: low volatility = frequent small wins; high volatility = rarer but bigger wins.

KYC (Know Your Customer)

Identity and age checks UK casinos must complete before you can deposit, play or withdraw.

GAMSTOP

Free UK self-exclusion scheme that blocks you from all licensed online gambling sites at once.

UKGC

UK Gambling Commission — the official regulator for gambling in Great Britain.

Live casino

Real human dealers streamed in HD for roulette, blackjack, baccarat and game shows.

Progressive jackpot

A prize pool that grows with every bet across many players until someone wins it.

Game weighting

How much each game contributes to wagering — slots often 100%, table games far less.

Reality check

A pop-up reminder showing how long you have been playing, to help you stay in control.

Welcome bonus

An offer for new customers, such as a deposit match or free spins, always with terms attached.

Free spins

Spins on selected slots given as a bonus; winnings are usually capped and have wagering.

Last updated: 21 June 2026