The Basics of Online Slots

online slot

Online slots are a popular form of gambling that is incredibly addictive. These games use innovative gaming features to create an immersive experience that is visually appealing and exciting.

They use software-based random number generators that emulate the odds of physical slot machines. They also have pay lines and bonus rounds that increase your potential winnings.


Symbols in online slot games vary from one game to another, but they all have some things in common. There are standard symbols that form winning combinations on the reels and pay a prize, scatter symbols that trigger exciting free spin modes and special symbols that can bring you rare bonuses such as multipliers.

The standard symbols of an online slot game can range from traditional fruit, bells and number icons to the more sophisticated symbols that are designed to fit a particular theme. They are usually ranked differently and each slot has its own unique set of low- to high-paying symbols.

Besides the standard symbols, some slots also feature stacked symbols that take up more space on the reels and increase the odds of joining them to a paying line. Other symbols include multipliers, which multiply the prize of any winning combination they join and are available in different types such as wild multipliers, progressive multipliers and bonus round multipliers.


Paylines are a vital part of any slot game. They determine how many times a player can win and can greatly increase the amount of money that a player can take home. These lines can be diagonal, straight or in a zigzag pattern. Some online slots even offer multiple paylines, which can give players a higher chance of winning.

In traditional slot machines, you can only win if you land three matching symbols on a payline that runs across the reels. The number of paylines is indicated on the paytable, and you can also find them in the individual games’ specifications.

Newer video slot games have moved away from set paylines and now offer 243 ways to win. This is a huge improvement for players, but it can take some time to get used to this new way of reading the grid. Those who prefer the old ways will probably still hanker for the days of fixed paylines.

Bonus rounds

Bonus rounds are mini-games that can be triggered in some online slot games. They usually offer higher payouts than the base game, and can add to your winning potential. Some of them may require you to fill up a meter in order to trigger them. The meter gets filled each time you land a certain symbol, and once it’s full, the system will take you to the bonus round.

Another great feature of bonus rounds is that they play at no additional cost to the player’s real money balance. This is because they’re run on the same random number generator that determines every outcome of a spin.

Adding extra features to a slot game is an easy way to make it more exciting for players. For example, the ‘Ted’ slot from Play’n GO has loads of special features that can be triggered by lining up specific symbols. These can range from 2×2 ‘Energoons’ to massive 3×3 ‘Gauntlets’.


Online slot games are more than just reels and symbols. Each game has a unique RTP, which is an important factor in determining how often you can win. RTP is a number that shows how much of your money is expected to return in the long run, taking into account countless spins. There are many different online slot games, but they all have one thing in common: they need to be fair to players in order to be successful.

It is important to know what RTP means before you start playing slots. While there are speculations that RTP does not mean anything, this is simply untrue. While you cannot control individual sessions, RTP is based on infinity, which means that over time your odds will converge to the overall average. This is not to say that you cannot win a huge jackpot during a single session, but it takes countless spins to get there. You can find the RTP for a slot game by checking its information section or visiting its developer’s website.