Common culprits: Avast, Norton, McAfee, and sometimes Windows Defender’s “Controlled Folder Access.”

If you previously installed mods, re-shaded tools, or if a malware scan accidentally deleted a crucial file, your steam_api.dll file might be compromised.

If you are looking for the fix yourself, try these steps in order. They resolve this specific error 90% of the time.

Go back to Steam, right-click the game, select , and click Verify integrity of game files .

Privilege mismatches prevent the game from communicating with Steam. Ensuring both applications run with administrative rights usually resolves the issue instantly.

Right-click , select Properties , and go to the Compatibility tab.

Sometimes, having the game installed on an external drive or a secondary internal drive causes the Steam API to lose the path.