# What are slot machines and how pay lines work?

The 99sports slot machine is a type of casino game that typically includes three or more reels that are spun when the player places a bet. Winnings are counted as soon as the reels stop spinning. In a classic slot machine, a win occurs when the reels show three or more identical and adjacent symbols on a valid pay line. As in any casino game, these results are always random, and cannot be controlled or influenced by either the player or the house.

What are Pay Lines?

Each pay line corresponds to a set of symbols that result in the award of a prize. Traditionally, slot machines featured only three reels and three lines, and often only had one pay line – a straight line that included the three symbols in the middle. Nowadays, slot machines more often have several pay lines, with slots with 10, 20, 40 or even 100 lines becoming more and more common. This number of lines in each game can be fixed, or variable. Being variable, the player can choose how many active pay lines he wants to play with, with more lines usually implying higher stake values. As a rule, pay lines only pay for combinations of adjacent symbols horizontally and only from left to right, starting at the leftmost roll, but there are exceptions.

How do slots without pay lines work?

Although pay lines are one of the most common elements of a slot machine, they are not mandatory. In fact, some of the best casino games do not include them. In recent years, online game creators have found increasingly original ways to award prizes without pay lines. One of the solutions found is to reward equal symbols on adjacent rolls, ignoring any lines. This feature, which is also known as “ways to win” or “multi-ways”, gives rise to a very high number of possible winning combinations. The fact that these games do not include pay lines offers great flexibility to their creators, who can then develop other game mechanics. In pragmatic online slot games without pay lines it is common to find reels with a variable number of symbols, which makes the number of possible winning combinations also different in each round.

What is theoretical return?

Theoretical return is the percentage of all money bet that a player can expect to receive back, theoretically, over time: the higher this value, the lower the house’s advantage. For example, for a theoretical return of 95%, if you place 100 bets of \$ 1 each, you can expect to receive \$ 95. This is a theoretical value, and, since slot machines are random games, the real value can be much higher or lower than the indicated RTP. Therefore, this value is for reference only.

In fact, it is their randomness that makes slot machines a unique form of entertainment. Sometimes, games offer us truly unforgettable results, precisely because of their rarity. But don’t forget – any online casino game is always, and above all, a form of entertainment. You should not play in the hope of always winning or to recover your losses, but to have fun.