Wild symbol is one of the first functional symbols in slot machines. It’s function is similar to the one of Joker card in the card games: it substitutes for any symbol on the payline, usually except Scatter symbol. In addition to its main function, Wild symbols can come in different types and variations that may trigger some additional game features. Some video slots may have more than one kind of Wild symbol, other games may use Wild to multiply the winnings. Below we have organized video slots into different categories by Wild features, including Wild Multiplier: