The most noticeable of which is the slot machines and their paylines. But how do slots work? This is the million-dollar question! With a growth in technology and advancement in popularity of casinos both online and offline, there has been a huge evolution of many casino games. The atmosphere that slot machines create in a bricks and mortar casino can now be rivaled by the graphics and entertainment value of internet live casinos, causing a battle of the slots. Slot machines are one of the most popular casino games to play in the world, because of how easy they are to play and how attractive they are in terms of the sounds, lights and more.