First, you need to create an account in the PAYEER® electronic wallet (it's free) and replenish it with the necessary amount in a convenient way for you (VISA, MasterCard, Maestro, MIR, QIWI, Advcash, Yandex, Bitcoin and more).
Offficial virtual currency of King Pirate Online is BSD. One BSD equals one PAYEER USD. If you already have a PAYYER account, you can buy BSD.