The catch, however, is that zero wager spins bonus offers usually always come as an add-on to regular welcome / sign up / new player bonuses that always require an initial deposit to unlock. In other words, you can claim and play them purely by signing up and registering for a new real money account. That said, the fact you can keep whatever you win using these no wager free spins is a big drawcard for online gamblers, especially fans of slot games.In fact, so successful are no wager spins bonuses proving to be, that many online casino sites are switching out their regular no deposit free spins bonuses for these.