: If you must download manually, DLL-files.com is a commonly cited repository. Another community-vetted option for certain versions is the Goldberg Steam Emulator .
If you find the file there, select and add the game folder to your exclusion list. Download JUST CAUSE STEAM API DLL FIX
The steam_api.dll error in typically occurs because the file is missing, corrupted, or has been quarantined by antivirus software. While several third-party sites offer "fixes" for download, the safest and most effective methods involve using official Steam tools or checking your system's security history. Official & Safe Fixes : If you must download manually, DLL-files