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Casino terms explained in plain language. Use this glossary to understand any figure or mechanic you find on a game page.
A mechanic where winning symbols are removed from the reels after a win and new symbols fall in to replace them. If the new symbols form another win, the cascade continues. Often paired with a multiplier that increases with each cascade in the bonus.
A casino promotion that returns a percentage of your net losses over a period. Unlike deposit match bonuses, cashback is often available with no wagering requirement, making it one of the more player-friendly bonus types.
A line on which matching symbols must land for the player to win.
A transparency mechanism used in crash games and some other titles that allows players to independently verify that the result of any round was determined before the round began and was not manipulated. Does not remove the house edge.
The software algorithm that produces random outcomes in digital casino games. A certified RNG ensures that each spin or round is independently random and not connected to previous outcomes. Third-party testing laboratories audit RNGs for fairness.
The percentage of all wagered money a slot machine will pay back to players over time.
A symbol that pays regardless of position and usually triggers a feature.
A formal request to a casino operator to close your account and prevent you from opening a new one for a set period. Licensed casinos are legally required to honour self-exclusion requests. In the UK, GamStop provides a national self-exclusion service.