Should a casino offer you a 20 free spins bonus, you are permitted to spin the reel 20 times on a certain game without paying and anything you win goes into your account for you to play with again, though withdrawing such funds could be party to a wagering requirement.įree spin bonuses are usually handed out on specific games by way of promoting them, i.e. Within the online casino genre, a free spin is essentially one spin of a slots game reel that you do not have to pay for.