Dragon Quest 1-3 came out on the DS years ago no?Dragon Quest I, II and III were never on DS or 3DS.
These are the platforms it came out on
NES (As Dragon Warrior)
SNES (As Dragon Warrior)
GBC (As Dragon Warrior)
Mobile Phone (Japan)
iOS
Android
Wii
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DS only has remakes of DQIV, V, VI , IX and 3DS has VII and VIII.