Or, in some cases: "steam_api64rdll not found."
Sometimes the file exists, but Windows has "blocked" it because it came from another computer (a security feature for downloaded files). call of duty infinite warfare steamapi64rdll missing work
If the error says it's missing from the system, some users also place it in C:\Windows\System32 C:\Windows\SysWOW64 , though placing it directly in the game folder is safer. Why does this happen? False Positives: Or, in some cases: "steam_api64rdll not found
A simple accident, like manually deleting files or using a disk cleanup tool that was too aggressive, can also cause this issue. False Positives: A simple accident, like manually deleting
Sometimes the game is fine; the Steam client has lost its ability to talk to the game.
The steam_api64.dll (Dynamic Link Library) file is a critical component developed by Valve for the Steam platform. It acts as a bridge between a game—in this case, Call of Duty: Infinite Warfare —and the Steam client itself.
Once restored, prevent future deletions: