Creaminstaller
In my opinion, the best DLC unlocker
The developer wanted everyone to have the opportunity to play the full version of the purchased game. I think it's not nice to sell such content. I would be grateful if you could support me and/or the developer (GitHub - CyberSys/CreamInstaller: Automatically finds all installed Steam games and their respective Steamworks DLL locations on the user's computer, automatically parses SteamCMD and the Steam Store for those games' DLCs, then provides a very simple graphical interface utilizing the gathered information. The primary function of the program is to automatically generate and install CreamAPI for whichever games and DLCs the user selects, however through the use of the right-click context menu the user can also: automatically repair the Paradox Launcher, open the parsed SteamCMD AppInfo in Notepad, refresh the parsed SteamCMD AppInfo, open Root directories or Steamworks DLL directories in Explorer, or open SteamDB/Steam Store/Steam Community links in the default browser.). Unfortunately, this program is no longer available on GitHub.
Use only if there is no other choice at your own risk