Always ensure you are using a trusted source when handling archive files, as unofficial mirrors may bundle unwanted software. If you enjoy the game, consider supporting the developers at Bird Bath Games by purchasing the DLC on Steam or GOG.
Run the setup.exe and install the game to your preferred directory. Atomicrops_Deerly_Beloved-Razor1911.rar
Razor1911 is one of the oldest active groups in the "warez" scene, dating back to 1985. Their releases are known for their custom installers and classic chiptune "nfo" music. Always ensure you are using a trusted source
Likely around late 2021 (matching the DLC's official launch) Protection: Steam DLC Content: Deerly Beloved overwriting existing files.
Copy the contents of the "Razor1911" folder (often found on the mounted disc) into the main game installation folder, overwriting existing files.