: Open your game's directory (usually in a bin or win64 folder) and find the original steam_api.dll or steam_api64.dll . Replace the DLL :
: Create a new text file named steam_appid.txt in the same folder as the new .dll . Open it and type the game's unique Steam AppID (found on SteamDB ). Configure Settings (Optional) :
: Use a tool like 7-Zip or WinRAR to extract the .rar contents.