Online Slot are games that allow players to win money by matching symbols on a set pattern of reels. They have a variety of bonus features and special symbols that add to the gameplay. Some of these include Wilds, Scatters, Multipliers, Free Spins and more. While traditional slot machines offer a relatively simple gameplay, online slots have evolved to include more advanced graphics and features.

Most online slots require at least three matching symbols to form a winning combination, although some have more paylines and can reward wins for combinations both ways or even when enough of the highest paying symbols are present in a cluster. They are also designed with mobile device users in mind, with many games offering a smooth and responsive interface that is easy to navigate on small screen devices.

The most popular online slots are themed after movies, TV shows, games, sports teams or rock bands. These are called branded slots and they are created through licensing agreements between the slot developer and the brand. They can be incredibly popular and often feature some of the biggest payouts available in the online gaming world.