What Are the Different Types of Slots?

A slot is an opening or position for something. For example, a passenger might have a window seat or a slot for luggage. In a game, a slot can be used for a reel or a button.

The pay table of a slot machine lists the payouts for different combinations of symbols. It can also provide information about bonuses and jackpots.


There are many different types of slot symbols, but all of them have the same function – to pay out when you line up the correct combination on an active payline. These symbols are usually shaped according to the theme of the game and can be scatter, wild or bonus.

Scatter symbols are one of the most popular features of slot games. They’re represented by a graphic that fits the theme of the game and can trigger a number of fun bonus features, like free spins or mini-games. They also come with a multiplier, which is applied to your winnings.

The earliest slot machine symbols were card suits – hearts, diamonds, spades and clubs – and the Liberty Bell, which gave one of the first machines its name. Today, slot symbols are a little more complex, but they’re still based on the same idea.


Payout percentage is an indicator of how much a slot machine will return to players on average, compared to how much they’ve wagered. The payout percentage of a particular machine is calculated mathematically from the results of thousands of spins. It is important to keep in mind that this figure can’t guarantee how much you will win in a single session.

It is illegal to alter a slot’s payout percentage after it’s been placed on the gaming floor. This would require physically swapping out the software or firmware, which is protected by a tamper-evident seal. It’s also illegal to deliberately change the payout of a machine in order to make money, as this could result in criminal charges. Some casinos are known to change the payout of their machines in order to attract more customers, but this practice is illegal and can result in hefty fines and prison time.

Bonus rounds

Bonus rounds are minigames that can be triggered in slot games, and can add a lot of fun to the game. These features can range from a simple spin of a wheel to a more complicated game where players must choose symbols and reveal prizes. It’s important to understand how these features work before playing them. Also, always set a budget and play responsibly.

Look for bonus features that match the theme of your chosen game and have an entertaining factor. These extras can help you win more prizes and increase your jackpot winning chances. You can also find games with special multipliers that can make your wins even bigger. The hit frequency of a bonus round is also important to consider, as it will determine how often you can trigger the feature.

Weight count

A weight count is an American term referring to the total value of coins or tokens removed from a slot machine’s drop bucket or box for counting by the casino’s hard count team through the use of a weight scale. It is an important tool in determining how much a player might win on a particular slot game. To be accurate, a weight count must be verified by management personnel independent of the slot department on at least a monthly basis. Any large variances between theoretical hold and actual hold must be investigated, resolved, and documented in a timely manner.


Variations in slot machines are a result of the different mathematical models that stand behind them. This diversity is what makes slot games so popular and it’s also one of the reasons that the big producers release new versions every year. These variations can vary from payouts to jackpots and rules of play.

The outcome of a slot game is determined by the combination of symbols that are visible on the paylines after a spin. This was done mechanically in electromechanical slots, but now the physical reels are replaced by invisible virtual ones that hold many more stops than the physical one can display.

The configuration of these virtual reels is secret, which is a matter of legal, ethical and marketing reasons. However, it’s possible to get a rough idea by studying the results of thousands of spins.