How is Knight Online supported?

Effect

How is Knight Online able to keep running if there is no fee at all? Is it setup similar to Silkroad Online in that players can buy items to make things easier or is setup up some other way?

JelloB2000

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http://www.knightonlineworld.com/index.php?pg=features
Knight Online can be enjoyed two different ways:
1. Free2Play™: All players have absolutely FREE access to all the current features of the game as well as future updates and expansion packages with no time limit.
2. Pay2Play™: For die-hard fans who wish to support Knight Online financially and are interested in enhanced game experience (e.g., higher hit rates, increased player abilities, access to special weapons, and many other benefits), we offer a variety of premium options. To view our premium packages, please visit our Power Up Store.

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pi.til.12

Thanks for the info