Square Enix tested AI-driven fictional language generation, presenting the research at GDC 2024. The tool combines word-substitution algorithms with text-to-speech to convert real text into invented fictional spoken languages for use in games.

AI researcher Yusuke Mori presented the research at the 2024 Game Developers Conference in a talk titled 'Machine Learning Summit: Fictional Speech Synthesis to Avoid the Risk in Generative Contents.' The system converts developer-written text into a procedurally generated fictional language with its own pronunciation rules, without relying on pre-recorded voice actors for those fictional words. Mori did not indicate the research was deployed in any active game production at the time of the talk; it was described as exploratory research into possible future applications.