Yuji Horii, the creator of Dragon Quest, has released a detective game created with Claude in “about thirty minutes”

‘Komiya in the Interrogation Room’, which can be played for free in a web browser, was hailed by its creator as ‘truly astonishing’ but received a very lukewarm reception from some players.

On October 11, 2026, Yuji Horii shared on X a small textual investigation game hosted in the form of "Artifact" by Claude, Anthropic's assistant. The player plays as a police officer in charge of interrogating Komiya, a 72-year-old former locksmith suspected of having emptied the safe of a pawn shop; you have to choose your questions and oppose the evidence to the suspect's contradictions until his version falls.

A nod to Portopia

Horii, who had designed the sole scenario, graphics and programming of The Portopia Serial Murder Case on personal computers in the 1980s, points out that it is now enough to give instructions to an AI for a single person to produce a decent game, and says he is stunned. The reactions have been largely negative: concerns about the employment of novice developers and artists, environmental impact, questions about training data and fear of an avalanche of botched games. A minority defend the tool as a simple productivity gain.