However, this is not a game sunset, but a game transition. Codemasters has failed to come to an agreement with NHN, the Korean developers of the game, to continue their service. NHN has transferred operation over to Webzen instead of Codemasters. If the images of Huxley and Soul of the Ultimate Nation just popped into your head, then you have indeed remembered the correct Webzen.
This transition will move all character data over to Webzen's servers, making Webzen the go-to spot for almost everything Archlord related. What hasn't yet been confirmed is if item data will be transported with the characters as well.
Archlord has shut down new account creation until October 2nd, when everything will be transferred over to Webzen. For the full details of the transfer, or if you want to make a new account, check out Webzen for all of the gritty details.
[Thanks, Adam and Doran!]