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The Basics of Online Slots

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Online slots use a random number generator (RNG) to determine the outcome of each spin. This software ensures that each “virtual spin” is fair and cannot be tampered with.

The RNG is also responsible for generating different combinations of symbols that will form winning paylines. These winlines can be a single horizontal, vertical or diagonal line.


Symbols in slot machines are what shape the game and give it its unique style. They can be standard symbols, scatters, multipliers or bonus symbols and each one has a role in the game. While most slots have fewer than 10 standard symbols, many also have speciality symbols that can increase players’ chances of winning.

The standard symbols in online slot games are usually based on the game’s theme. For example, a pirate-themed slot would include symbols like a ship, fish, anchor and treasure chest. They function in the same way as traditional reel symbols and offer smaller payouts.

Some slot machine symbols can also double as multipliers, increasing your chances of winning even more. These multipliers appear stacked on the reels and are added to any winning combination they join. These special symbols are referred to as wilds and are a key feature of many slot games. They can be found in both modern and classic machines.


Paylines in online slot games are the patterns on the reels that award players with winning combinations. The number of paylines in a slot machine is determined by the software used to create it. Players should be aware that multiple paylines may not result in a win, but will increase their chances of winning.

There are several different ways that paylines can be arranged in an online slot. The most common is a left to right arrangement. This means that matching symbols are assessed from the left to the right. Other slots have a pay both ways arrangement. This option offers double payouts when matching symbols land on the same row. Popular slot games that offer this option include Starburst from NetEnt.

Some online slots have fixed paylines that cannot be adjusted by players. This can be a disadvantage for players with modest bankrolls. However, these games usually feature bonus games and rounds of free spins to compensate for the fixed paylines.

Bonus rounds

Many online slot games include bonus rounds and other special features that add excitement to the game. These features are a great way to keep players entertained while playing a slot game and they can boost their play balances without eating into their real money bankroll. However, not all bonus features are created equal and you should check the hit frequency of a slot’s bonus round to ensure that it offers a realistic chance at winning.

Among the most popular types of bonus rounds are free spins rounds, where players receive a predetermined number of free spins and any wins from these spins will be credited to their account. In other cases, a slot’s main character may appear on the screen and award players with an additional event such as a respin or extra symbols. These bonus events are triggered randomly and do not require any skills on behalf of the player. They are designed to get players back into the regular game quickly so they can continue betting money.


RTP is the percentage of the money that a slot game returns to players over time. It is calculated based on millions of spins and can differ from one game to the next. This statistic does not guarantee a certain amount of winnings, however, as the outcome of each session is determined by the random number generator (RNG).

A higher RTP usually means more frequent payouts, but it is important to understand that this doesn’t necessarily mean that you will win more money. You should also consider the game’s volatility, which can influence your chances of winning.

If you want to play online slots with the highest RTP rates, check out Golden Nugget’s selection of games. It features 132 high RTP casino slots, including Blood Suckers, Starmania and White Rabbit Megaways.

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