>>3776842You can go deeper. The 80s Action RPG boom with Xanadu, Hydlide, etc.
And even before that, there was an early 80s PC RPG boom in Japan, but unless you REALLY are deep into it and know the language, this is impossible to get into.
Overall, the idea of DQ being the first Japanese RPG is kind of a myth. It was a codifier of what nowadays is considered an archetypal JRPG, but Japan had a lot of role-playing games long before that.