Slots pay out in three main ways: fixed paylines, Megaways, and cluster pays.
Paylines reward matching symbols along set patterns, Megaways changes the number of ways to win on every spin, and cluster pays rewards groups of touching symbols on a grid. Here's how each works.
Paylines: The Classic Model
A payline is a fixed pattern that runs across the reels, and you win by landing enough matching symbols along it, usually from the leftmost reel.
The number of lines is set in advance: a game might have 10, 20, or 50. Your stake is typically spread across the active lines, so more lines mean more patterns in play.
Book of Dead is a classic example, with 10 adjustable paylines. Land three or more matching symbols along an active line and it pays; symbols that stop off the line don't count.
Megaways: Dynamic Ways to Win
Megaways drops fixed lines entirely. Instead, the number of symbols on each reel changes from spin to spin, so the number of ways to win shifts with it.
Most Megaways games use six reels, each showing up to seven symbols, producing up to 117,649 ways to win. You win by landing matching symbols on adjacent reels from the left, no line required.
Gonzo's Quest Megaways is a well-known example. On any given spin, the reels might show two symbols or seven, and the ways-to-win count updates before the reels settle.
Cluster Pays: Wins Without Lines
Cluster pays swaps lines and reels for a grid. You win when a group of matching symbols touch each other, usually horizontally or vertically, and most games set a minimum cluster size to trigger a payout.
Winning clusters are then removed so new symbols can drop in, allowing several wins to chain from one spin.
Reactoonz plays out on a 7x7 grid and pays for clusters of five or more matching symbols. There are no lines and no fixed ways; where symbols land is all that counts.
Why Modern Slots Mix Mechanics
Through 2026, more releases combine several systems into a single title rather than just one.
A game might pair a Megaways or cluster engine with cascading reels (winning symbols vanish and new ones fall), symbol-collection features (symbols banked across spins toward a bonus), and Hold & Win rounds (special symbols lock in place while the rest respin).
The win system is only the base layer. The extra features sit on top, which is why two games built on the same mechanic can feel completely different to play.
Curious how they compare? Explore the range of slot machines with different mechanics at 888casino. 18+. BeGambleAware.org.
FAQs
What Does 117,649 Ways Mean?
It's the maximum number of ways to win on a standard six-reel Megaways game. With up to seven symbols on each of the six reels, the combinations total 7 multiplied by itself 6 times, which equals 117,649. That maximum applies only when every reel shows its full seven symbols.
Are Megaways Slots Higher Volatility?
Many are designed to be higher variance, but it isn't guaranteed by the mechanic. Volatility comes from a game's individual maths, not the Megaways label itself. To check, look at the volatility rating and RTP in the game's info or "i" panel before you play.
Which Mechanic Pays Best?
None of them, inherently. The win system decides how wins are formed, not how much a game returns. Return to player (RTP) is set by each game's design, so a payline slot and a cluster slot can carry the same RTP. Check the figure in the info panel rather than assuming one mechanic pays more than another.
