Run the installer files located inside (such as vcredist_x86.exe and the DirectX setup). Restart your computer after the installations are complete. 5. Clear the Steam Download Cache

If you installed the game on an external drive or outside of the standard system pathways, the game engine might lack the system permissions required to write files to that directory.

This has nothing to do with missing files. In fact, steam-api.dll is present in your game folder. The problem is .

“Cannot create steam-api.dll”