Phantasy Star Online v.1

 is an online RPG game developed by the Sonic Team and published by Sega on December 21, 2000 in Japan, January 29, 2001 in North America and on February 15, 2001 in Europe for the Sega Dreamcast.

Additional quests were released through the SegaNet service. The Japanese quests are compatible with other regions, but the game's language has to be set on Japanese.

How to obtain
See Transfer Saves Between Dreamcast and PC.