Steam

On Air! Taxi Detective Casebook

Also known as On Air! Taxi Detective Casebook, oatdc, on air taxi detective casebook

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.”

Last update

7 Aug 2026

Browse all updates Add Discord alerts

Latest update

StorePublished 04 Aug 2026

On Air! Taxi Detective Casebook is joining the East Asia Indie Games Celebration

My game will be part of EAIGC 2026 — East Asia Indie Games Celebration. Dates: August 5 – August 19, 2026 Official site: https://eaigc.filtergame.com/ Steam event page: https://store.steampowered.com/curator/45543967/sa…

3 changesGameplayRead update

Update history

Browse past updates and patch notes for this game.

12 updates

July 2026
On Air! Taxi Detective Casebook Demo — v5.01 Patch NotesHello, everyone! Thank you for playing On Air! Taxi Detective Casebook! It hasn't been long since the last update, but this v5.01 brings an important improvement — clue dragging — along with a new BGM track. Details bel…Announcementv5.015 changesFixGameplay11 Jul 2026
On Air! Taxi Detective Casebook Demo — v5.00 Patch NotesHello, everyone! Thank you for playing On Air! Taxi Detective Casebook! I'm glad to announce that On Air! Taxi Detective Casebook has finally reached version v5.00. This update mainly adds the continuation of [Case 01]…Announcementv5.005 changesFixCompatibility01 Jul 2026
May 2026
On Air! Taxi Detective Casebook is now part of Suspense Game Festival!Suspense Game Festival is a Steam showcase dedicated to suspense games, bringing together mystery and thriller indie titles from around the world. Event dates: May 29 – June 7, 2026 Feel free to add the game to your wis…Event2 changesGameplay29 May 2026
On Air! Taxi Detective Casebook Demo — v4.01 Patch NotesHello, everyone! Thank you for playing On Air! Taxi Detective Casebook! This v4.01 update focuses on fixes to the tutorial system and adds several new quality-of-life improvements. Full details below: ✅ Improvements · A…Announcementv4.014 changesFixGameplay15 May 2026
On Air! Taxi Detective Casebook is now part of The Storyteller's Festival 2026!The Storyteller's Festival is a Steam showcase dedicated to narrative-driven games, bringing together story-focused indie titles from around the world. Event dates: May 12–19, 2026 Feel free to add the game to your wish…Event2 changesGameplay11 May 2026
April 2026
🎉 Event Announcement: BGM Game Expo Spring 2026 Steam SaleOn Air! Taxi Detective Casebook is now featured in the BGM Game Expo Spring 2026 Steam Sale! BGM Game Expo (Best Game Market) is one of China's largest tabletop and gaming conventions, now featuring a dedicated Steam sa…Event3 changesStoreGameplay16 Apr 2026
On Air! Taxi Detective Casebook Demo — v4.00 Patch NotesHello everyone! Thank you for playing On Air! Taxi Detective Casebook! This v4.00 update focuses on addressing operation guidance issues raised in player feedback, along with important improvements to core gameplay mech…Announcementv4.0011 changesFixGameplay16 Apr 2026
March 2026
On Air! Taxi Detective Casebook Demo — v3.04 Patch NotesHello everyone! First of all, thank you so much for playing the On Air! Taxi Detective Casebook Demo! If you encountered any bugs or technical issues during the demo, I sincerely apologize. As this is a solo-developed p…Announcementv3.049 changesFixUI/audio11 Mar 2026
February 2026
On Air! Taxi Detective Casebook Demo — v3.03 Patch NotesHello everyone! First of all, thank you so much for playing the On Air! Taxi Detective Casebook Demo! If you encountered any bugs or technical issues during the demo, I sincerely apologize. As this is a solo-developed p…Announcementv3.0311 changesFixUI/audio22 Feb 2026
On Air! Taxi Detective Casebook Demo — v3.02 Patch NotesHello everyone! First of all, thank you so much for playing the On Air! Taxi Detective Casebook Demo! If you encountered any bugs or technical issues during the demo, I sincerely apologize. As this is a solo-developed p…Announcementv3.0213 changesFixUI/audio13 Feb 2026
On Air! Taxi Detective Casebook – Demo now availableAbout 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 as…Announcement3 changesGameplayUI/audio06 Feb 2026

Gallery

On Air! Taxi Detective Casebook is joining the East Asia Indie Games Celebration

July 2026

May 2026

April 2026

March 2026

February 2026