 Devil Summoner was released by Atlus for the Sega Saturn on December 25 , 1995 . A supplementary release containing bonus material such as the ability to view the game 's demon collection , titled Shin Megami Tensei : Devil Summoner - Akuma <unk> , was released on April 26 , 1996 . In 2005 , it was announced that a port to the PlayStation Portable ( PSP ) was in development as part of the Devil Summoner subseries ' tenth anniversary celebrations . The port included a demon compendium , adjustable difficulty levels , a save @-@ anywhere option , adjustable screen ratio , and additional bosses and interface alterations for user convenience . Hashino and Isogai returned to the project , this time taking up the respective roles of producer and director . The port was decided upon when it was decided to begin development on the third Devil Summoner game so players who had missed the Saturn original could experience it again . An important element of the port was ensuring short loading times , an issue plaguing other PSP ports of the time . The port was released in Japan on December 20 , 2005 . 
