About Knight Online

K2 Network publishes this game in North America for free and charges for premium game features.
Egames publishes this game in Malaysia for free and charges for premium game features.
Mgame publishes this game in Korea and charges to play.
Terra Corp publishes this game in Japan and charges to play.
SOHU publishes this game in China and charges to play.

There is an in-game piracy/counterfeiting problem whereby a few players can duplicate an item and sell it. When the game is patched or upgraded these duped items will vanish. Often the owner of these duped items had no idea of their origin until it disappeared.