Whispers from the Star on Steam

https://store.steampowered.com/app/3730100/Whispers_from_the_Star/

Developer and publisher Anuttacon; release 2025-08-14; Windows; talk with stranded astronaut Stella by voice or text; no script, open-ended conversation shapes her choices and survival; microphone required; AI-powered voiced performance created with an actor; safety filters.

Realtime speech-to-speech and expressive TTS for characters, Whispers from the Star