In South Korea, there is no software package or CD key requirement to activate the account. In order to play the game, however, players need to purchase time credits online via credit card or the ARS billing system. There are two kinds of time credits available: one where the player is billed based on the actual number of minutes that will be available, and one where the player can play the game for a number of days. In the former, time can be purchased in multiples of 5 hours or 30 hours, and in the latter, time can be purchased in multiples of 7 days, 1 month, or 3 months. As software packages are not required, expansion pack contents are available to all players on launch day.