What Are the Different Bonus Features in Slot Machines?

Slots use random number sequences to determine the outcome of each spin. This means that no machine can be “due” to hit the jackpot. Despite this, many players still believe that the next spin will be their lucky one.

Keeping your bankroll in mind is the best way to manage slot play. This will prevent you from running out of money before your luck changes.


Many modern video slots come with a variety of fun bonus features designed to add an extra dimension to your game. You can find scatter symbols that trigger a special bonus game, or free spins symbols that can award monetary prizes based on your winning combinations. Some of these symbols also act as wilds or multipliers. You can even find stacked wilds that cover larger areas of the reels and increase the odds of forming part of a winning combination.

The most common standard symbols found in slot games include bar and fruit symbols, horseshoes and liberty bells, and the lucky number seven. The lucky number seven is believed to be a lucky symbol because it is represented in many different myths and legends around the world. Other popular symbols are stacked and expanding wilds, and multiplier wilds that can boost line wins by 2X, 3X, or 5X. Most slots have these standard symbols, but some developers add themed icons that fit the game’s theme.


Payouts in slot machines are based on a mathematical formula and vary from game to game. Some slots have high volatility, while others are low. While these differences can be confusing, they do not have a significant impact on the overall return-to-player (RTP) of a slot machine.

Payout percentages for online slots are regulated by law and can be verified by a reputable gambling site. This method helps ensure that the games are fair and unbiased, and prevents rigging by casinos. However, some unlicensed and fraudulent sites have been known to manipulate the results of their slots.

The theoretical hold worksheet, also referred to as the theoretical hold percentage, is provided by a slot manufacturer and indicates the theoretical amount the machine should hold based on the number of coins paid in. It also indicates the reel strip settings, payout schedule, and the number of reels. It also lists the minimum and maximum wagers that can be made on a single spin.

Bonus features

There are a lot of different bonus features in slot games, but the main ones include extra rounds, free spins, and jackpot wins. These special mini-games can be triggered in a variety of ways, but they usually require scatter or dedicated symbols to appear on the reels. They can also be retriggered multiple times, increasing the chances of winning bigger prizes. It is a good idea to check out a game’s paytable to find out more about these features and how they work.

Some bonus games can be re-triggered, allowing you to play the feature multiple times in a row. This is especially useful for progressive slots, which have many small jackpots that can be awarded during the bonus round. Some bonus games also offer a special type of wild symbol that acts as substitutes for other symbols and increases your payout potential. These types of symbols may have additional features such as multipliers, duplicating, spreading, or sticky wilds that increase their presence on the reels and increase your chances of creating matches.


Slot machines account for up to three-fourths of casino revenues, and are the driving force behind campaigns to expand legalized gambling. Research has shown that these devices addict people more quickly than other forms of gambling, in part because of the hypnotic rhythm and solitary nature of the games. They also provide a greater sense of accomplishment than other types of gaming.

Most locales that have casinos regulate the amount of money a slot machine must pay out on average. These regulations can be as simple as a specific percentage, or can include the number of hits on a particular slot machine. This helps to ensure that the actual payouts and returns stay within legal limits, allowing the casino to collect taxes on them.

Online casinos are less regulated, but many make it a point to be fair with their players. They do this in order to keep their customers happy and make sure that they are not being cheated.