There are several features of slots. In general, these include free-spins mode and progressive jackpots. Free-spins mode is extended by collecting scatter symbols. Progressive slots offer cash prizes if the symbols line up. Other features include wild symbols that substitute for other symbols. Some games also include an interactive mini-game, which can be played for random cash prizes. A bonus round in these games is called a gamble mini-game. In addition, progressive slots also have bonus games that can increase the player’s payouts.

The features of a slot define its gameplay and attract players to spend money on it. Some of these features are added to increase payouts. Mechanical slot machines, for example, did not have multipliers or jackpots. Today’s digital machines, on the other hand, have five-reel games with wild and scatter symbols. Regardless of the bonus round, a slot has different payouts depending on the type of symbols used. Some casinos have more than one jackpot, while others limit the amount of symbols on each reel.

In the late 20th century, slot machines evolved to incorporate more electronic components. The first machines featured only three symbols, but now they can contain as many as 22 symbols. This allowed for ten thousand combinations. Originally, players were wary of video slots because they didn’t have spinning reels. Nowadays, video slot machines are more popular, and some manufacturers have even included handles and reels to give players the illusion of control. This is a great feature of modern slot machines!