To help me provide more specific steps, what are you trying to launch, and are you using the official Steam client or a different launcher? Share public link
How to Fix Steam-api.dll Missing Errors on Windows 32-Bit A missing steam-api.dll error is one of the most frustrating issues PC gamers face. This dynamic link library (DLL) file is a critical component of the Steam API client library. Without it, your operating system cannot bridge the gap between your game files and the Steam application. When this file goes missing, gets corrupted, or is blocked by system security, games like Counter-Strike , Dota 2 , Football Manager , or Skyrim will refuse to launch. Steam-api.dll Download 32 Bit WORK