One of the most popular video gaming conventions in Japan is the Tokyo Game Show. Major gaming companies attend this convention each year, often to announce their new projects for the Japanese market. Sega, being based in Japan, has used the Tokyo Game Show as a format for announcing many games, including Phantasy Star Online.
At the 2008 Tokyo Game Show, Sega released a magazine and DVD set previewing several titles. Included in this magazine is a feature article previewing Phantasy Star Ø.