Square Enix's AI Division released an updated version of adventure game The Portopia Serial Murder Case as "an educational demonstration of Natural Language Processing (NLP), an AI technology," according to its announcement. The original 1983 game was a significant influence on visual novels and graphical adventures in Japan, as well as inspiring a generation of game designers. The 2023 version, which is available for free on Steam, doesn't seem likely to have the same effect. In fact, it currently has a user rating that's 92% negative.
The NEC PC-6001 version would respond to typed input in text adventure style, with the usual limitations. As Square Enix put it when announcing the release, those old parser input controls "did come with one common source of frustration: players knowing what action they wanted to perform but being unable to do so because they could not find the right wording. This problem was caused by the limitations of PC performance and NLP technology of the time."
