SQUARE ENIX AI Tech Preview: THE PORTOPIA SERIAL MURDER CASE — Steam game overview

Stored observation / content update: 2026-10-13T09:13:57.000Z

This software is a demonstration of Natural Language Processing (NLP), an AI technology, as applied to the adventure game “The Portopia Serial Murder Case” (first published in Japan in 1983). Talk to your partner, give him instructions, and try to solve the string of mysterious murders.

Game metrics below are stored observations; missing values are unknown.

Revenue is modelled, not confirmed sales. See the methodology and uncertainty range.