knight online usko source

Knight Online is an MMORPG developed by Mgame Corporation.
Knight Online is officially free-to-play (although to connect to most of the servers during prime time, paid premium is required), but there are some features that must be paid for. In addition, there is an in-game Powerup Shop or Store which contains various items that one can purchase such as premium packages (freemium model). Paid services include exclusive items and Premiums which are a limited-time subscription providing many benefits.