GameOgre.com and Chaos Online have teamed up to offer beta keys to GameOgre.com forum members. All you have to do to get a beta key is to register for this forum and post in this thread. The beta key will be delivered by private message.
Closed beta will start on December 13, 2008.
Official Site:
MMORPG Free to Play Chaos Online, the Chaotic World. Free to Download – EnjoyMMO.com
Chaos Online Reviews:
Chaos Online : Online Games Review Directory