This is one of the many worlds of FFXI. While it is online year-round along with all the other servers, it is closed off to players. Atomos Server is used to monitor connectivity to the internet and to test out updates, fixes to problems, as well as expansions before they are implemented on the other servers. It is populated by GMs and the Square-Enix Development Team for FFXI. However, it was used for the testing of some new material (specifically, Dynamis and Ballista) which was open to some members of the public. Dynamis testing on Atomos Server occurred on January 25-26, 2004, February 10, 2004, and February 17, 2004 at Real Vana'diel in Japan. Ballista testing on Atomos Server occurred on April 6, 2004 and April 13, 2004 in Japan and the United States at places not presently known.