What You Need to Know About Slot Machines


Slots are a popular casino game, and there is a wide range of them available to play online. They range from traditional, pull-to-play mechanical slots to bright video screens and quirky themes. It’s important to pick one type of machine and learn it well so you can play confidently and maximize your chances of winning.

Pay Tables

Every slot machine has a pay table, which lists the number of credits you will win for landing three, four, or five matching symbols. This is usually listed on the machine’s face, and can also be found in a help menu. Some symbols are wild and can substitute for other symbols on the pay line to complete a winning combination.


Symbols are the main focus of slot games, and they can be anything from images from ancient Egypt to modern-day characters like a cartoon character or a movie star. You will also find special symbols, such as Scatters and Bonus symbols, which are typically linked to a bonus feature. These can include free spins, jackpot prizes, and more.

RNGs (Random Number Generators)

All slot machines today use a random number generator to decide the outcome of each spin. These chips generate numbers in a huge spectrum and decide on the outcome of each spin. This means that the reels will spin differently every time you press the spin button, even if you stop them before the spin is completed.


The volatility of a slot determines how frequently it pays out big wins, and is influenced by its Return to Player (RTP) rate. High volatility slots tend to pay out large amounts but rarely, while low volatility slots are more likely to give players smaller wins, but more often.

Gambling limits

The amount of money you can bet on a slot machine depends on several factors, including the casino’s betting limits and your personal budget. If you have a limited bankroll, you’ll want to choose low-volatility games. If you have a lot of cash, you can choose high-volatility games, which will give you larger wins but not as frequently.

Machine malfunctions

Slots are prone to malfunction, so it’s important to be aware of any problems that might occur and to avoid spinning the reels until they’re fixed. If a machine is unable to properly register your coins, you may lose all or some of your money. You should always check the payout schedule and paylines to ensure that they’re working correctly before you spin the reels.


A tilt is a type of fault that can occur on electromechanical slot machines. It can be caused by the door switch being in the wrong state, the reel motor failing, or if the paper is out of place.

In addition, slot machines can have problems with their coin hoppers. This can cause delays in the cash out process, which can lead to complaints from players.

Luckily, most slot machines now have a service light at the top of the machine to make it easier for casino employees to spot malfunctions. If you notice a problem, be sure to contact an attendant or press the change button and wait for someone to arrive.