The "64" signifies it is designed for 64-bit Windows operating systems.
Several online websites claim to offer a solution to fix the 64.dll error by providing a download link for the missing file. Some popular websites that offer this solution include: Online Fix 64.dll Download
: Errors often occur if the game files weren't extracted correctly from their original archive. How to Fix Loading Errors The "64" signifies it is designed for 64-bit
files from "DLL fixer" websites. These are often outdated or malicious. The most reliable way to get this file is to download the "Online Fix" "Steamworks Fix" Online Fix 64.dll Download