: Some users have found the game fails to launch if OpenAL is missing. Reinstalling OpenAL can resolve "Application Not Found" or startup failures.
A failed update or interrupted download can leave the "stub" of the game visible in your library without the actual files behind it. Step-by-Step Fixes for ATC4 1. Launch Directly from the Steam Library I Am An Air Traffic Controller 4 Application Not Found
So if you search today, you will still see But somewhere, on a dusty 3SD cart in a Denki Hobby shop in Osaka, ATC4 is running—taxis idling, departure handoffs clean, the sun setting over a perfect digital Kansai runway. : Some users have found the game fails