A slot is another word for the old fashioned "slot machine" and is used by us and others in the business to describe a casino game where you play on a virtual slot machine. Slots are basically the most popular type of casino game, both online and in traditional real casinos. In a slot, reels spin with different symbols and players place bets on the outcomes of those spins. Wins can be achieved by winding up with certain combinations of symbols on active paylines. Slots come in many different themes and often feature a variety of different challenges and options including bonus games and free spins, making them particularly attractive to many players.