Believe it or not, Dragon Marked for Death was originally was originally going to see release on the PSP. This info comes straight from Inti Creates president Takuya Aizu. The original concept materials for the game date all the way back to August 18, 2008. It seems much of the gameplay ideas/mechanics from that original concept remain intact for the upcoming Switch version. As to why the game never saw release on PSP, Mr. Aizu never explained.