On Air! Taxi Detective Casebook – Demo now available

About the demo The demo version of On Air! Taxi Detective Casebook is now available on Steam. This demo contains a self-contained story that showcases the game’s core systems, tone, and characters.

You play as the AI assistant built into a taxi’s dashboard. You can’t talk to passengers directly, but you can assemble and send short radio broadcasts. By combining the keywords you’ve collected into scripts – and deciding when, or even whether, to air them at all – you subtly steer the driver and passenger toward different topics, reactions, and decisions. Sometimes the right choice is to interrupt; sometimes it’s to stay silent.

In this late-night ride, you will:

• Listen to a seemingly ordinary, yet suspicious story from the passenger in the back seat

• Collect and organize clues from their words and behavior

• Synthesize keywords into radio broadcasts and choose the timing of your interventions

• Piece together what really happened and present your own deduction

A single playthrough takes around 20–40 minutes, depending on your reading speed and how carefully you experiment with interventions. You can also replay to explore different broadcasts and reactions.

This demo includes:

• One complete ride with a stand-alone mystery

• The core On Air system: keyword synthesis, broadcast replacement, and timing-based intervention

• Multiple language support (including English, Japanese, Chinese, and Korean)

How you can help

• If you enjoyed the ride, please add the game to your wishlist – it helps a solo developer a lot.

• Share your thoughts and bug reports via Steam discussions or social media; your feedback will directly shape the later cases.

Thank you for taking a seat in this taxi. I hope we can meet again in the full version of On Air! Taxi Detective Casebook.