It's actually available on PS4 RPG Maker MV as a download. You can find an earlier version in the Japanese section.
Funny thing about the game is that the English (US) version of it was broken at launch, and the only way around it was to have a Japanese account if you wanted to upload.
I figured it out with support on discord, and they put in a patch where they would upload a temporary game on your account that you could replace.
It was a whole ordeal. And RPG Maker MV is a pain in the ass to use on there. You have keyboard support but no mouse.