What Are the Variables in an Online Slot?

online slot

Online slot is a casino game that uses math to determine your chances of winning. Different slots have different variables that affect your chances of winning over the long term. Understanding these variables will help you choose the right online slot for you.

A good rule is to play all the pay lines. This will maximize your chances of winning.

Random number generator

The random number generator is the heart of all modern slots. It is a microprocessor that generates random numbers every millisecond. It then selects one of those numbers to correspond to a specific stop on the reels. This process is what determines whether a player wins or loses.

The RNG is the only way to prove that an online slot machine is fair. Without this technology, slot games would not be able to function. There are two types of RNGs: true random number generators and pseudo-random number generators. True random number generators take entropy into account, while pseudo-random number generators use a seed value to generate results efficiently.

Reputable regulated online slots have unbreakable security on their RNGs, making them virtually impossible to hack. This ensures that players are guaranteed an honest and fair game.


The reels are what the symbols on a slot machine’s spinning wheels sit on, and they determine how many winning combinations are made. While older physical casino slots have three to five sets of reels, modern online slot games use random number generators (RNG) to generate a different result every time you press the spin button.

RNG software is regulated by online gambling authorities to ensure that each spin is completely random. While this may not be a guarantee that you will win every time, it’s definitely the best way to ensure that your gameplay is fair. The majority of spins will be low-value, but a lucky few will hit the jackpot. This is why it’s important to understand your odds of winning before playing.


Symbols are the basic elements of online slot games. They form part of the paylines that offer payouts when matched together. There are many different types of symbols and each one offers a unique gameplay experience. Some of them have additional bonus functions. For example, some Wild symbols act as multipliers for any winning combination they join. Stacked symbols are another relatively new feature that can increase the odds of hitting a payline.

Traditional slot symbols usually include low-paying card icons that are based on classic playing cards and standard fruit symbols that can have a variety of payouts. High-paying symbols are designed to match the overall theme of the game and may include animated versions of the game’s characters. Scatter and bonus symbols are also used to trigger special game features that offer lucrative payouts.


Online slot paylines are patterns on the reels that players can line up to win a payout. Depending on the type of slot machine, these patterns can be horizontal, vertical, diagonal or zig-zag shaped. Some slots also feature special symbols that trigger bonus rounds. Regardless of the number of paylines, players should understand how to read them before playing so that they can make the most out of their winnings.

While single-payline mechanical slot machines still exist, many video games have multiple paylines that offer more opportunities to win. The best way to understand how many paylines a slot game has is by reading the pay table. It will state how much you can win for each combination of symbols that land on a payline from left to right.

Bonus rounds

Online slot bonus rounds are a great way to add excitement and variety to your slot experience. They can also increase your winning potential. However, you should always weigh up the risk vs reward before participating in them.

These special features can range from mini-games to multipliers and jackpots. They are triggered when specific symbols land on the reels and usually share a theme with the base game.

The best part is that these special features play at no additional cost to your real cash balance. This is because they run using dedicated credit instead of your actual money. Some bonuses even have retriggers, allowing you to keep playing for longer.