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Understand Wilds, Scatters, Cascades, Clusters, Jackpots and other mechanics.
Wild Symbols
Wilds substitute for selected symbols under the rules shown in a slot paytable.
Sticky Wilds
Sticky Wilds remain in place for a defined number of spins or during a feature.
Expanding Wilds
An expanding Wild grows to cover additional positions when its rules are met.
Walking Wilds
Walking Wilds move across the reel area between spins.
Scatter Symbols
Scatters commonly trigger features or pay independently of fixed paylines.
Free Spins
Free Spins are a slot feature with a fixed or variable number of spins.
Multipliers
Multipliers increase a qualifying demo win by a stated factor.
Respins
Respins repeat some or all reel positions according to the feature rules.
Cascading Reels
Winning symbols clear and new symbols enter the grid.
Hold and Win
Value symbols lock while remaining positions respin for a limited count.
Bonus Buy
A Bonus Buy provides direct feature access where available and legally permitted.
Pick-and-Click Bonuses
The player selects concealed items to reveal demo awards or modifiers.
Mystery Symbols
Mystery positions reveal a shared or selected symbol.
Random Modifiers
A modifier changes reel behavior before, during or after a spin.
Progressive Jackpots
A progressive prize grows from qualifying play until it is awarded.
Fixed Jackpots
A fixed jackpot has a stated value that does not grow with play.
Paylines
Paylines define ordered reel positions used to evaluate matching symbols.
Ways to Win
Ways systems evaluate adjacent matching symbols without fixed line shapes.
Megaways
Megaways-style systems vary symbols per reel to change the number of possible ways.
Cluster Pays
Cluster systems award connected groups rather than left-to-right lines.