Slot machines were invented more than a century ago, and gradually have more complex mechanisms, eye-catching appearance, and pg attractive game options, but it is the Internet that has taken online slot machines to a whole new level. What changes have taken place when slot games enter the cyberspace, why are these innovations needed, and what other changes can players and casino owners expect? The online slot game made its debut nearly a hundred years after the original Liberty Bell slot machine began. At first, these online slot machines were clones of Las Vegas slot machines. The creators of the first online slot machine were determined to keep the original format and believed that they actually copied and pasted the square appearance onto our computer screen. The practical design constraints derived from the mechanical necessity of non-virtual casino slot machines have significantly affected the artistic freedom and talent that web design tools may bring to those pioneering online slot machines. This is a bold and creative approach that distinguishes Internet casinos from land-based casinos in terms of slot machines. After a somewhat tedious start, casino designers seem to be ready to bring the new player market into the 21st century. The one-armed bandit lost his famous body, stylized buttons and traditional frames give way to interesting 3D scenes with unconventional inventions. Fun Eureka from CasinoLux.com is an exciting example of a slot machine that shows what it means to think outside the box! Designed as a mad scientist’s laboratory or a picturesque wonderland slot machine, the theme is a magical forest, and the symbols sprout in the form of charming animation from the petals. More good examples can be found on Money-Casino.com, such as the nostalgic Drive In Slots, where symbols are projected onto the movie screen, or Haunted Slots, inspired by horror movies, with a dark graveyard and newly-appearing ghosts in the background. Instead of spinning the old fruit reels, designers who use more traditional methods might wonder what the benefits of slot games are. At first glance, it doesn’t look like a slot machine at all. Well, the human eye longs for surprises and novelties. So in 1895, the first groove was the last cry, and it is the same now. So, how do we expect gamers in the 21st century, who have become accustomed to fast-paced computer games and are constantly bombarded with fascinating visual stimuli, adapting to old conventions? The Internet has injected fresh blood into the industry: it created the largest market in history by reaching people who had never been in contact with land-based casinos before. On the other hand, there are many online casinos. Table games cannot be modified too much visually, so they look very similar in different casino software. Imaginative slot machines will make people remember the casino. The fresh look and focus are worth a thousand ads. The image must be accompanied by generous returns. Slot games of the 21st century, or video slot machines, are sometimes referred to as distinguished from classic slot machines.