If you meant Resident Evil 4 (2023), the error is extremely rare. Try updating your graphics drivers and verifying files — the game uses steam_api64.dll (64-bit). Same verify process applies.
This is the safest and most reliable method. It forces Steam to check your installation and replace any corrupted or missing files automatically.
Windows Defender or other antivirus software often flags steam-api.dll as a "Trojan" or "PUP" (Potentially Unwanted Program) because of how it interacts with your system. If it was flagged, Windows may have deleted the file without telling you. steam-api.dll missing resident evil 4
steam-api.dll depends on C++ runtimes. A missing or broken runtime can cause the error even when the DLL is present.
Instructions:
Do not download DLL files from the internet. The safest route is always to let Steam handle the file replacement via the "Verify Integrity of Game Files" tool. If the error persists, your Antivirus is likely the culprit blocking the file from regenerating.
Here’s a useful piece of information regarding the “steam-api.dll missing” error in Resident Evil 4 (likely the 2005 original or the 2014 Ultimate HD Edition, not the 2023 remake, which uses a different system): If you meant Resident Evil 4 (2023) ,
If verifying the files does not work, the installation directory may be corrupted beyond repair.