Slot machines, the most famous game in any casino are not difficult to learn for people who are new to it. The reason why they are famous is their being simple in handling and playing, moreover the diverse themes in each different slot machine make them more interesting to players. All in all the features are usually same in all slots, varying more or less in one machine to another.
Following are the general features found in all slots:

1. Wild symbol:
Wild symbol is the most well liked symbol among players as it can take place of many other symbols on the play line on a slot machine. The details of the wild symbols can be found around the pay table surrounding the wild symbols, the details of the symbols that it can replace. Usually it can replace all the symbols except for the trigger and the scatter symbol.

2. Scatter symbol:
The feature that makes scatter symbol as a great choice for the players, is that it does not need to appear in any particular combination on an active play line. One just needs to spin the needle required number of times and get the winning payout. Although one does not need to worry about the active line combinations.

3. Free Spins feature:
This is another great feature of slots that give player extra chances of winning, the reels can be spinned without worrying about the money to be paid per spin. There are few triggers for earning free spins, getting three or more combinations of scatter symbols is usually the most common trigger in most slots. The free spin can be triggered while playing at any coin level.

4. Bonus Games:
Bonus games are additional aspects of all slot machines and the theme of slots is fully incorporated in all bonus games. The bonus games are usually achieved by a particular combination of some symbols or there can be bonus symbols in some slots. Sometimes, bonus games are activated without any symbols, rather they are triggered randomly.

The bonus games are very lucrative as they give the highest payout for each win and the players find them interesting as well, for the theme of slots can be fully enjoyed while playing a bonus game.