Reference volume · III
A working vocabulary
Twelve terms, each with a condition worth remembering.
Cascade / tumble
A sequence where symbols are removed and replacement symbols enter the playing area.
DefinitionCluster
A group of matching connected symbols evaluated together under a game’s adjacency rule.
DefinitionConfiguration
The specific set of game parameters to which a documented rule or mathematical figure applies.
DefinitionExpanding symbol
A symbol that can occupy additional positions when its expansion condition is met.
DefinitionPay anywhere
A counting structure where qualifying matching symbols need not trace a line or form an adjoining group.
DefinitionPayline
A prescribed pattern of positions used to evaluate a symbol combination.
DefinitionRetrigger
A qualifying event that awards a further feature allocation during a feature.
DefinitionReturn to player (RTP)
The theoretical share of total stakes returned as prizes by a specified game model over extended play.
DefinitionScatter
A symbol with a separately defined award or feature-triggering role.
DefinitionSticky wild
A wild that remains in place for a specified part of a feature.
DefinitionVolatility
A description of how widely results can vary around an expected value.
DefinitionWild
A symbol that can substitute for specified other symbols under the game’s rules.