Then, verify game files again as in Solution 1.
Sometimes the issue is not the game but the Steam client itself. Reinstall Steam without deleting your games: Steam-api.dll Download Call Of Duty Modern Warfare 2
This is the #1 culprit. Because this file often interacts with DRM, many antivirus programs (including Windows Defender) flag it as a "false positive" and quarantine or delete it automatically. Then, verify game files again as in Solution 1
If you own the game on Steam, this is the gold standard. Steam will scan your game folder and replace any missing or corrupted files, including steam-api.dll . Because this file often interacts with DRM, many
Sometimes Steam gets "confused" and blocks the DLL from loading.
Never search for "Steam-api.dll download Call of Duty Modern Warfare 2" and click on random file-hosting sites. The only reliable, malware-free method is to use Steam’s built-in repair tools or reinstall from an official source.