PES 2016 is nearly a decade old. The only people still distributing steam-api.dll for it are modders (safe) and malware bots (unsafe). Choose wisely.
In rare cases, physical corruption on your hard drive can damage the DLL file. This is less common but possible if your drive is aging. steam-api.dll pes 2016
Open your antivirus (Windows Defender, Avast, etc.) and check the Protection History Quarantine If you see steam_api.dll listed, "Restore" it and add the PES 2016 folder to your Exclusions list Verify Game Files (Steam Users) Steam Library Right-click on Pro Evolution Soccer 2016 and select Properties Local Files tab and click PES 2016 is nearly a decade old
Below are fixes ranging from safest to least safe. Follow them in order. steam-api.dll pes 2016