Slot Game Mechanics
A guide to the building blocks of modern slot design — the features and mechanics that define how a game plays. Each mechanic page below explains the format, the math behind it, and the games in our catalog that use it.
Megaways 10 games
Megaways is a licensed mechanic from Big Time Gaming where every reel can land 2 to 7 symbols on each spin, generating up to 117,649 ways to win.
Cluster Pays 29 games
Cluster Pays slots ditch traditional paylines entirely. Wins land when 5 or more matching symbols touch each other — horizontally or vertically — anywhere on the grid.
Ways to Win 24 games
Ways-to-Win slots replace fixed paylines with all-adjacent-reel matching — typically 243, 1,024 or 4,096 ways depending on the grid.
Tumbling Reels 23 games
Tumbling (or cascading) reels remove winning symbols and drop new ones in their place, allowing a single spin to chain into multiple wins.
Hold & Win 12 games
In Hold & Win slots, money symbols lock in place during a respin round and the goal is to fill the grid with cash values that get summed at the end.
Sticky Wilds 9 games
Sticky wilds lock onto their landing position and stay there for the remainder of a free-spins round, dramatically increasing win potential as more accumulate.
Expanding Symbols 10 games
A randomly-chosen "special" symbol expands to cover entire reels during free spins, paying out as if the whole reel was filled with that symbol.
Bonus Buy 10 games
Bonus buy lets you skip the base game entirely and pay a fixed multiple of your stake to trigger the bonus round directly.
Wild Multipliers 6 games
Wild multiplier symbols substitute for paying symbols and multiply any win they participate in by their stated value.
Progressive Jackpots 3 games
Progressive jackpot slots feed a growing prize pool from every wager across every connected casino — until one lucky spin scoops the lot.