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On Air! Taxi Detective Casebook playtest
by 373 Studio
On Air! Taxi Detective Casebook is a pixel-art, dialogue-driven mystery game. You’re an AI in a taxi, teaming up with a talkative driver on late-night runs to hear bizarre passenger stories, solve cases in secret, and let him play the “great detective.”
Anyone with a Steam account can join, and it's free.
- Access
- Instant
- On playtest since
- Jan 21, 2026
- Planned release
- To be announced
- Developer
- 373 Studio
- Platforms
- Windows
- Players
- Single-player
- Languages
- English, Japanese, Simplified Chinese, Traditional Chinese
How to join the On Air! Taxi Detective Casebook playtest
- Open the game's Steam page with the Join playtest button. Sign in to Steam if it asks.
- Use the On Air! Taxi Detective Casebook playtest signup there. You're in straight away, with nothing to pay.
- The playtest shows up in your Steam library, ready to install and play.
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How AI is used
AI tools were used in a limited capacity during development: · As Korean is not my native language, some Korean text was translated using AI. I am actively looking for a suitable localization translator; thank you for your understanding.
The developer's own words, from Steam.
About On Air! Taxi Detective Casebook
On Air! Taxi Detective Casebook is a pixel-art, dialogue-driven detective game.
You are an intelligent assistant living inside a taxi. Team up with a chatty, perpetually stressed driver: work the small hours, worry about a fragile platform rating, listen to bizarre passenger stories, and quietly solve a few strange cases along the way. You’re the hidden detective behind the scenes; he’s the face who says it out loud. You think; he “solves.”
Gameplay Overview
Scan every remark for breakthroughs—a ticket stub, a brief recording, a timestamp. Each “Keyword” matters. Filter and combine them to surface the “Clues” that guide your deduction.
As the in-car AI, you can’t state your reasoning directly. Use the radio to disguise key points as a “midnight news bulletin” or “traffic update,” nudging things in the right direction. The timing, channel, and even volume of each broadcast can steer events toward different outcomes. A poorly timed update can cost you progress or a valuable review.
Driving the cab is still your primary job. Watch the passenger’s mood—it affects your rating. Strategic detours can raise your income, but the wrong move may jeopardize opportunities—or your livelihood.
For Players Who
· Enjoy teasing out threads from conversation and the thrill of deduction.
· Like story-forward, text-heavy experiences—a novel you can play.
· Prefer to operate behind the scenes and watch plans come together until the truth emerges
From the game's Steam page.
