A free spin welcome bonus is a popular incentive offered by online casinos to attract new players. It allows players to spin the reels of a slot game without using their own money. This bonus gives players a chance to win real money without any initial deposit. Players often look for casinos that offer this type of bonus to maximize their chances of winning. Free spin welcome bonuses can vary in terms of the number of spins and wagering requirements attached. Overall, it is a great way for players to experience the thrill of online slots without any financial risk.