Koichi Sugiyama
The series' monsters, characters, and box art were designed by Toriyama. The music for the "Dragon Quest" series was composed by Koichi Sugiyama. In the past, main "Dragon Quest" games have been developed by Chunsoft, Heartbeat, ArtePiazza, Level-5 and starting with "Dragon Quest X", by Square Enix for the first time. Horii's company, Armor Project, is in charge of the script and design of "Dragon Quest" games that were published by Enix and Square Enix.