Online slots are pretty basic games. It has a few reels (usually five), each with a number of symbols. You push a button. The reels spin. You win or lose based on what combination of symbols are found on the reels. It’s that simple. That is not to say that there isn’t variety when it comes to slots, though.
If you check a directory such as Dmoz, you will find a large number of popular online slots. They are all different in their presentation and gameplay. The most obvious thing that sets slots apart is the theme. Some of the most popular slots carry known brands, such as comic book characters or movies. Slots also often have historical themes or destination themes. Others are about a certain lifestyle. Perhaps the most exciting slots are those that tell a story. There are slots about bank heists, soap operas, and more. The popular i-Slots have a storyline that progresses as you play.
Another thing that makes slots different is the money. Some have higher payouts than others. Some slots pay out more often than others. Some have small betting limits while others allow or require larger bets. The bonuses are also different. Slots offer a different number of free spins and multipliers. Some have second-screen bonus mini-games while others do not. The gamble feature is another aspect that is found in some slots, allowing you to risk your winnings in an attempt to double or quadruple them.
The other biggest difference is in regular slots and progressives. The progressive games have larger jackpots but pay out less often. They have worse odds than regular slots but you will be much happier if you hit the jackpot.