Slots

Slots are random-number-generated reel games — from classic three-reel machines to video slots, Megaways and progressive jackpots — defined by two numbers every player should check: RTP (long-run return) and volatility (how the wins are distributed).

Quick facts
Types Classic, video, Megaways, progressive jackpot
Typical Rtp ~92%–97%
Key Metrics RTP and volatility
Outcome Determined by RNG

How slot maths works (RTP and volatility)

Every modern slot outcome is produced by a random number generator, independent of previous spins — there is no such thing as a machine being ‘due’. Two figures describe a slot’s behaviour. RTP is the long-run percentage returned to players, typically between 92% and 97%. Volatility (or variance) describes how those returns arrive: low-volatility slots pay small, frequent wins, while high-volatility slots pay rarely but larger. Two slots can share the same RTP and feel completely different to play.

Types of slots

Classic slots use three reels and a handful of paylines. Video slots add five or more reels, rich features and many ways to win. Megaways games use variable symbol counts to create tens of thousands of paylines. Progressive jackpots pool a slice of every bet across many machines into a single growing prize — which lifts the headline appeal but usually lowers base-game RTP, since part of the return is diverted into the jackpot.

Frequently asked questions

Can a slot be 'due' to pay out?

No. Each spin is independent and decided by a random number generator. Past results have no effect on future spins.

What RTP should I look for?

Higher is better. Many quality slots sit around 96%, and the figure is usually published in the game's info panel or the operator's terms.



Sources

  1. Game-provider RTP disclosures
  2. Independent testing-lab certifications
  3. Probability theory