Sweepstakes slots are online slot games and they offer virtual coins to play. They are usually of two types: Sweeps Coins and Gold Coins. The first ones have more value because they can be exchanged for real gifts. Gold Coins can only be used to play and you cannot exchange them. I play free online sweeps slots in “Sportzino” just by spending Gold Coins that are credited to me every day when I log in. When I receive Sweeps Coins I can withdraw them to my account. I hope I managed to explain :)