What are Facebook Credits?
Facebook Credits are a secure and easy way to buy optional items such as virtual pets, premium game weaponry, and other fun supplies in many of your favorite free games. Credits have a monetary value. Spend or save them as you like.
How do you get credits?
If you see a credit balance and didn't buy your own credits, then you likely received free credits directly from Facebook as a gift. Otherwise, you can earn credits through special offers or buy credits using PayPal, credit cards, or your mobile.
Which games accept credits?