Missing system files can cause DLL errors. Install the latest:
Before you download anything, understand why the error appeared. The most common reasons for RE6 specifically are: Resident Evil 6 Steam-api.dll Fix Download
After completing, restart your PC, then re-verify Resident Evil 6 files one last time. Missing system files can cause DLL errors
Why this works: Steam has a master copy of every game file. Verification compares your local files to the master. If they don’t match, it repairs them. restart your PC
If the issue persists, you might consider reinstalling Steam. : This will require you to reinstall all your games.
Outdated drivers can cause false DLL dependency issues. Run Windows Update and download the latest GPU drivers from NVIDIA, AMD, or Intel.
