This is a ROM hack of the original Dragon Warrior (Rev A) for the NES. Interordi's graphic hack, also known as Dragon Warrior Plus, enhances the game's visuals.  The core gameplay loop remains the same, but the graphics are updated, offering players a modified visual experience while retaining the original game's mechanics and storyline.   Being a fan-made modification, it's not an official release from the game's original publisher.

Dragon Warrior (USA) (Rev A) [Graphic Hack by Interordi v0.33] (~Dragon Warrior Plus)

Dragon Warrior - Part II (USA)