A refers to a variety of third-party software tools and mods designed to bypass Steam’s ownership checks, allowing players to access paid downloadable content (DLC) without a formal purchase.
A configuration file ( cream_api.ini ) lists the AppIDs of the DLCs to be "faked". Total War Shogun 2 Dlc Unlocker
The original Steam API file ( steam_api.dll ) is renamed (e.g., to steam_api_o.dll ). A refers to a variety of third-party software
A modified version of the DLL (the unlocker) is placed in the game folder. Total War Shogun 2 Dlc Unlocker