When you place a bet on an online slot, an assortment of reels will spin with a variety of symbols or icons. If you match these icons in a specific order or on a paying line, you will win a prize. The spin outcome is determined by a random number generator - meaning all games are randomised for fairness. Many slot games also come with bonus features that activate under certain conditions. For example, landing 3 or more scatter symbols could trigger a free spins feature!