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Slot Machine

Slots

A slot machine is a reel-based gambling game where an RNG decides every spin. How paytables, RTP and the built-in house margin actually work.

ByCasino Desk·Casino & Slots Editor

Reviewed byKris Fawkes·Chief Editor

A slot machine is a gambling game in which a player stakes money on a set of spinning reels and is paid according to the symbol combination that lands. Every result on a modern machine, in a venue or online, is produced by a random number generator at the moment the spin is triggered; the visible spin is animation, not a live draw. The paytable lists what each combination pays, while the theoretical return to player, or RTP, describes the long-run share of stakes returned across millions of spins. That figure is always below 100 per cent, so the machine is designed to retain a margin and no pattern of play changes it. Slots run a very fast bet cycle, which makes losses accumulate quickly, so deposit and time limits are worth setting before playing.

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