Here is the full list of all 13 SQUARE ENIX AI Tech Preview: THE PORTOPIA SERIAL MURDER CASE achievements.
Awarded for investigating the body in the locked room.
Awarded for rendezvousing with Yasu.
Awarded for confirming Fumie's alibi.
Awarded for confirming Komiya's alibi.
Awarded for confirming Yukiko's alibi.
Awarded for arresting Toshi.
Awarded for confirming Okoi's alibi.
Awarded for investigating the body in the mountains.
Awarded for investigating the body in the tenements.
Awarded for discovering that Yasu is the murderer.
Awarded for unearthing 127 pieces of evidence.
Awarded for speaking to Yasu 255 times.
Awarded for solving the Portopia Serial Murder Case.