A slot machine is a popular casino game featuring reels with various symbols. Players spin the reels by placing a bet and hope to match symbols across paylines to win prizes. Classic slots have three reels, while modern video slots often include five or more, along with bonus features like free spins, wilds, and multipliers. The outcome is determined by a random number generator (RNG), ensuring fair play. Slot machines come in many themes, from fruit symbols to movies and adventure stories, appealing to different player tastes. Progressive slots offer jackpots that grow with each bet until a lucky player wins. Easy to play but relying on chance, slots remain a favorite for both casual and experienced gamblers in casinos and online platforms.