via Steam: Right-click PES 2016 → Properties → Installed Files → Verify integrity of game files. Steam will restore any missing or corrupted files, including the API DLL.
Are you playing a or a modded setup of PES 2016? steam api dll pes 2016 link
Never download a DLL from a file-hosting site (Mediafire, Uploaded, Rapidgator) unless you have a verified source from a trusted member of the PES modding community. via Steam: Right-click PES 2016 → Properties →
The steam_api.dll file is a critical component for games like Pro Evolution Soccer (PES) 2016 steam api dll pes 2016 link
If you are a :