Often there are also different bonus/scatter symbols which can give your extra winning chances. The more symbols of the same kind appear on the reels, the bigger potential prize can be won at the same time. The different symbols trigger different sizes of winnings. Other times, they must appear on horizontal, vertical, diagonal or other lines. Sometimes these symbols just need to be on the reels at the same time to trigger wins. It is usually from three identical symbols upwards that trigger wins.
In general, slot machines give winnings when a certain number of symbols appear simultaneously on a payline.
