Some of the more common types of free spins are explained below.
No deposit free spins: Offered without the player having to make a deposit usually as an incentive to sign up.
Deposit free spins: Offered against a deposit of a specified amount usually on a new slot game or as a part of a festival promotion.
Zero wager free spins: There are no wagering requirements on the winnings from the free spins but the maximum cashout limit is very small.