Online slot is a casino game that uses a random number generator (RNG) to determine the outcome of each spin. The game has many different themes and variations, but most work in a similar way with reels, paylines and symbols. Players can choose how much they want to bet per spin, and there are often a range of bonus features and scatters. The graphics and animations are also getting better all the time, with new mechanics like tumbling reels and Megaways making their way to top slot games.

There are a huge number of online slots to choose from. Some are based on traditional fruit machines, while others have more modern themes such as fantasy, food, TV shows and entertainment. Many slot machines have a story behind them and can incorporate audio visual effects to create a full experience for the player.

Five-reel slot games came out after classic three-reelers and kicked the gameplay up a notch with more win opportunities, special symbols and fun bonus rounds. Some even feature a progressive jackpot, which increases with every bet until someone wins the whole thing.

Branded slots are a big part of the online slot scene, with titles being developed on the basis of popular movies and TV shows as well as sports stars, rock bands and other famous faces. These slots typically offer a higher maximum payout, with the branded names helping to add a sense of credibility to the game.