Online slot games have become the most popular casino game. They’re easy to learn, fast-paced and offer more options than traditional physical slots. They can be played from desktops, laptops, tablets and mobile phones. They also provide a much broader range of themes and features than other casino games such as poker, roulette and blackjack.

The way that slot machines work, whether in land casinos or online, is based on a random number generator (RNG) software. The RNG generates a sequence of three numbers that corresponds to the symbols on each reel. After each spin, the computer records these numbers and compares them with the internal sequence table to determine if there was a winning combination of symbols on an active payline. The result is then displayed on the machine’s screen.

In the early days of online slots, designers were constrained by a familiar format that was popular in land casinos. However, as the industry evolved and developers became more confident with the technology, they began to push the boundaries with new games that incorporate exciting themes or unconventional layouts and structures. Some of these games include bonus rounds and other premium experiences that can greatly increase your payout.