A online slot is a virtual version of the fruit machines you’d find at a land casino. They’re still based on random number generation and are regulated by gambling authorities to ensure they’re fair. However, they’re now more advanced than their electromechanical predecessors with added symbols such as wilds and scatters and immersive bonus rounds.

Unlike physical fruit machines, where you can only win money if you line up a particular combination of symbols, online slots let you choose how many paylines to activate for each spin. Generally, there are 3-5 reels with space for 3-5 symbols on each and you’ll win when the winning combinations appear in a row across the paylines.

Modern online slots often feature different game modes and themes so you can keep the fun going with something new every time you play. Themes might be inspired by movies, TV shows, popular games or even rock bands. You can also find branded slots – developed through licensing agreements with movie studios and sports celebrities.

It’s important to be aware of the risk involved in online slot games and not to gamble with money you cannot afford to lose. You can find helpful tips and advice on responsible gambling at the top online casinos. These sites are known for their safe, secure and high RTP slots. In addition, they offer a wide variety of bonuses and promotions to help you maximise your winning potential. Be sure to check out their terms and conditions before you start playing.